PDF - Adafruit Learning System
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1. Adafruit Industries https learn adafruit com pocket pigrrl Page 57 of 112 Mounted Pi The screws should be fastened all the way so they re flush with the surface of the case Adafruit Industries https learn adafruit com pocket pigrrl Page 58 of 112 opeaker Prep Metal Speaker Secure the speaker on the helping third hands it has a magnet so just let it stick to one of the grabbers Hit the solder joints and remove the wires Prep New Wires for Speaker oit the two case parts close to each other to guage wire length and cut two pieces Strip the tips of each wire and add solder to tin the tips Adafruit Industries https learn adafruit com pocket pigrrl Page 59 of 112 Adafruit Industries https learn adafruit com pocket pigrrl Page 60 of 112 oolder Wires to Speaker Heat up the solder points on the speaker and connect the wires The positive and negative symbols are indicated on the speaker Install Speaker Position the speaker into the bottom corner of the enclosure There s a circular indent with slits near the rounded corner of the case That s where the speaker needs to go The tolerance should be sized to fit the speaker tightly Adafruit Industries https learn adafruit com pocket pigrrl Page 61 of 112 ED Le ns 4 ee ILE Se aem S emg n AILE Adafruit Industries https learn adafruit com pocket pigrrl Page 62 of 112 Connect Speaker wires to PAM83022. Adafruit Industries https learn adafruit com pocket pigrrl Page 11 of 112 PAM8302 The VIN and GND pins are wired to the 5V and GND pins on the powerboost 1000c The A and A pins are wired directly to the audio pins on the bottom of the Raspberry Pi A The speaker is wired to the amps audio output and id E ee u AB CDE ll le 13 1u 15 lb 17 J ed ai ce e3 Perma Proto Two Button Layout b d 3 5 b B H 10 ll be 13 JN 15 lL 17 1E 13 20 di da 23 dM 25 db 27 EE 2 30 2 ek ef ek e 3n To interface the Pi with the tactile buttons we ll use a Pi ribbon cable 26 pin The connections below indicate the wire number gpio name and keyboard input controller button The White colored wire will be represented as Wire 1 The blue connections indicate the ground for each buttons These are all wired to the bottom ground rail Adafruit Industries e Wire 2 5V Powerboost e Wire 6 GND Powerboost e Wire 7 GPIO 4 Key Left e Wire 9 Ground for Buttons PCB e Wire 11 GPIO 17 Key Right e Wire 12 GPIO 18 Key Up e Wire 13 GPIO 27 Key Down e Wire 15 GPIO 22 Key A e Wire 16 GPIO 23 Key B https learn adafruit com pocket pigrrl Page 12 of 112 PiTFT Buttons There is five buttons that is connected to the PCB near on the bottom of the display The GPIO number for these buttons are listed below and on the PCB e GPIO 5 Key Z e GPIO 6 ESC e GPIO 12 EN
3. learn adafruit com pocket pigrrl Page 36 of 112 Heat Shrink Slide Switch Once you ve soldered up the three wires to the terminals you ll want to protect the connections with some heat shrink tubing Cut a piece of heat shrink tubing that sizes for 30AWG wire to about 5 6mm in length Slip these onto the three wires and position them over the exposed connections Apply some heat to the tubing to shrink Ideally want to use hot air Install Slide Switch Now that the switch is wired up and protected it s a good idea to install it into the enclosure before wiring it to the rest of the circuit Carefully thread si the into the slide switch cut out on the bottom enclosure part Gently push the slide switch into the enclosure You may want to use a hand tool or surface of a table to help force it in if the tolerances are too tight Adafruit Industries https learn adafruit com pocket pigrrl Page 37 of 112 Adafruit Industries https learn adafruit com pocket pigrrl Page 38 of 112 Adafruit Industries https learn adafruit com pocket pigrrl Page 39 of 112 Powerboost 1000C Prep PowerBoost 1000C Next up we need to wire up the slide switch to the powerboost 1000c breakout Secure the PCB to the helping third hands We need to tin three pins so we can insert the wires from the slide switch Heat up a pin with the tip of the soldering iron and apply EES solder Tin pins 5V G GND EN we also did VBat JI jo ov eee w
4. oolder the wires from the speaker to the audio out pins on the PAM8302 Adafruit Industries https learn adafruit com pocket pigrrl Page 63 of 112 Install Header Insert the header that came with the PiTF T into the PCB Use a piece of fun tac to hold the header in place while you solder ere E ir TCT ATI MT ba E E lf di iti o O TERRE EERA EA EEEN bini hal dad el LIS LES LER LI Adafruit Industries https learn adafruit com pocket pigrrl Page 64 of 112 secure Header Solder the pins on the GPIO to seure the header to the PCB The solder joints should look like little herseys kisses ee 0000090000000 oQogooooogooo Z Adafruit Industries https learn adafruit com pocket pigrrl Page 65 of 112 oo O Lor ae M 90E336755 M ZW ETE H Eiry ad afruit LAE m iain i ee IM LIE N P C p eN 4 i m E Jj f g El i a W E P od k T IS T Hemove ac Remove the tac from the GPIO header Ball it up and save it for the next project it s served it s purpose Add Buttons Insert five tactile switch buttons into the designated spots on the PiTFT PCB They snap fit and will hold ue in place Secure the PCB to a panavise jr and solder the buttons to secure them O OO OO OO OO O Adafruit Industries https learn adafruit com pocket pigrrl Page 66 of 112 T HN E MEE qeu sa TOT ELE NEP
5. hand so you can solder them all at once Adafruit Industries https learn adafruit com pocket pigrrl Page 53 of 112 hdd ad EARL Tin Audio pins on Pi Next up we need to prep the solder points on the Pi to make it easier to solder our audio wires Start by securing the Pi to the panavise jr downside up Locate the audio jack and find the two solder spots for the positive and ground Add a small amount of solder to these points Adafruit Industries https learn adafruit com pocket pigrrl Page 54 of 112 LL d r1 idd EE dd tu IIKXXITXAXDTCHME c ridddzdd YT ded Solder Audio Wires to Pi Hit those points with the iron and solder the wires to positive and ground The ground white wire can be indicated by seeing there s no traces connected to it The positive red wire connection has visible traces Adafruit Industries https learn adafruit com pocket pigrrl Page 55 of 112 E RER a Em O i p E 5 Oo zl mm mL Wit i du 7 E LI TE 7 TURE Ce Dd Solder Audio wires to PAM8302 Place the Pi into the base with the audio jack facing amp Wire the positive red wire to A pin and the ground white wire to the A pin on the PAM8302 Mount Pi Hold the Pi in place while you insert and fasten four 4 40 3 8 flat phillips machine screws into the mounting holes Adafruit Industries https learn adafruit com pocket pigrrl Page 56 of 112
6. id Oo OO OO i ma va e T lii O AV6 Z 09 M8 og SSL9CCIVG 09 OO Be 00 Adafruit Industries https learn adafruit com pocket pigrrl Page 67 of 112 ge Ce O Af6 z 29 i5 og X coop ee adafruit Trim buttons o OO i T4 EL s Snip the excess leads from the buttons the PiTFT PCB These bits are sharp and could scratch the components Disable GPIO 18 Lite By default the 2 4 PITFT uses GPIO 18 to turn on off the backlight on the display In this build we re using GPIO 18 as a input button so we need to cut the trace located on the back of the PCB labled 18 Lite Use a hobby knife to cut the trace U AF6 Z 29 i SG 9 308 o eo9 Adafruit Industries https learn adafruit com pocket pigrrl Page 68 of 112 Prep Display PCB With the GPIO header and buttons soldered go ahead and flip over the display so the two parts are side by side Peel Use your nail or hobby knife to peel the orange colored sticker backing Remove and peel both pieces Adafruit Industries https learn adafruit com pocket pigrrl Page 69 of 112 Adafruit Industries https learn adafruit com pocket pigrrl Page 70 of 112 otick Display Flip over the display and line it up with the screen outline on the PCB Press down on the screen to make the adhesive stick to the PCB You might also want to use some double sided tape if the side tape pieces are not strong enou
7. want to bend it at a right angle so you can fit it in the case Adafruit Industries https learn adafruit com pocket pigrrl Page 104 of 112 Tack Battery added a small piece of fun tak to the back of the battery so it stick the back of the Perma Proto PCB This fun tak stuff from loctite works really well cause it hold it in place but easy to remove and doesn t leave behind any sticky gunk Adafruit Industries https learn adafruit com pocket pigrrl Page 105 of 112 ad Pd LU PIC rw ELLIE REELE Stick Battery Go ahead and stick the battery onto the Perma Proto PCB Adafruit Industries https learn adafruit com pocket pigrrl Page 106 of 112 Installed Battery Seems to be the best place for the battery would recommend wrapping this up in gaffers tape but when did that it no longer fit so at least you know now We snipped off all the pointy stuff anyway so it should be safe Also note there s actually not too much force or pressuring being applied to the battery when it s enclosed Adafruit Industries https learn adafruit com pocket pigrrl Page 107 of 112 A E E E E E E E p p om mE F ED i 1 Close GPIO headers With two hands you want to pick up both parts of the enclosure and start closing it together The first thing you wanna do is line up the header pins from the Pi to the socket on the PITFT Once their lined up squeeze
8. Buttons 89 Install Perma Proto 90 Wire Ground 91 Wire Left Button 92 Wire Right Button 94 Wire Up Button 96 Wire Down Button 97 Wire A Button 98 Wire B button 100 Wired Perma Proto to Pi Cable 101 Perma Proto Four button layout 102 Assembly 103 Final Wire Check 103 Plug Battery 104 Tack Battery 105 otick Battery 106 Installed Battery 107 Close GPIO headers 108 Wire Kink Check 108 Fasten Last Screw 109 Final Build 111 Made One YES 112 Adafruit Industries https learn adafruit com pocket pigrrl Page 5 of 112 Overview The gameboy is an iconic portable gaming device that most adults will probably remember dedicating hours of their childhood playing games on one This DIY project isn t about hacking or modding an old gameboy In this project we re building a completely new gaming device using 3D printing the Raspberry Pi A and components from Adafruit 3D printing allows you to design custom enclosures for your projects The design and form factor are very much inpsired by the gameboy but by no means meant to look exactly like it Adafruit Industries https learn adafruit com pocket pigrrl Page 6 of 112 Raspberry Pi Our first PIGRRL project used the Raspberry Pi Model B and and Adafruit 2 8 PITFT In this project we re using the Raspberry model A and a 2 4 PiTFT HAT The small size of the A and the compact display really allows this project to be one of the smallest builds yet Raspberry P
9. place to take a break The next section contains lots more stripping tinning and soldering Adafruit Industries https learn adafruit com pocket pigrrl Page 85 of 112 Buttons i Connect Pi Cable to Powerboost E Grab the wires from the pi cable and locate wire 2 and 6 Wire 1 is the white colored one Isolate these two wires and strip the tips off Secure them 2E to one of the grabbers on the third helping hand wel Apply some solder to tin them rd Y x Solder wire 2 to the positive pin on the Powerboost Solder wire 6 to the negative pin on the Powerboost OO y k 3 P ze A EB I aa Adafruit Industries https learn adafruit com pocket pigrrl Page 86 of 112 E i 1H 1 rn E TAN C m 3 ja LE i em T MM a ft Er ee el bu ic ie ey Soldered Power Now we should have power wired up from the Pi Cable to the powerboost 1000c Wire 2 is actually pin 5V on the Pi wire and 6 is ground Adafruit Industries https learn adafruit com pocket pigrrl Page 87 of 112 Cut extra wires short Let s go ahead and cut the wires we won t be using short Be sure to reference the circuit diagram and double triple check each wires Trimming these short will helps keep everything tidy and orangized If your making the four button version DO NOT cut wire 3 and 5 Heat Shrink Pi Cable Speaking of being organized and tidy adding a piece of heat shrinki
10. 112 linked to the left button This should be on the A rf opposite pin of the button where we wired ground dv Locate wire 7 on the pi cable and position near it T the left button Measure how long it needs to be EN and cut short leave a bit of slack so it s easier to v E gr solder Strip and tin the wire Then solder the wire 2 to the perma proto PCB p Lal A al Adafruit Industries https learn adafruit com pocket pigrrl Page 93 of 112 Wire Right Button Now that you did the first button you ll be able to do the song and dance easier Let s locate wire 11 on the pi cable this is going to the right button Just like we did on the left button measure how long it needs to be then cut strip and tin Solder this one to the one of the available pins in the same row of the right button Adafruit Industries https learn adafruit com pocket pigrrl Page 94 of 112 EE SSS a c 2 0 9 eed Wire Up Button https learn adafruit com pocket pigrrl Page 95 of 112 Adafruit Industries Up next it s the up button Locate wire 12 and do the song and dance of measuring cutting e soe stripping tipping and soldering a 4 T in EI p https learn adafruit com pocket pigrrl Page 96 of 112 Adafruit Industries Wire Down Button II Locate wire 13 and solder this one to the down es OO 224 button You know the drill T a e er
11. Config txt For optimized speed and decent audio from the emulators you ll have to tweak some settings in the config txt file disable overscan hdmi force hotplug 1 hdmi cvt 320 240 601000 hdmi groups hdmi modez87 gpu memz44 disable audio dither 1 overscan scale 1 dtparam spi on pi 1 device tree bcm2708 rpi b plus dtb pi2 device tree bcm2709 rpi 2 b dtb EU dtparam spi on dtparam i2c1 on dtparam i2c_arm on dtoverlay pitft22 rotate 270 speed 80000000 fps 40 arm freq 950 core_freq 250 sdram_freq 450 over_voltage 6 Mapping Controls Download retrogame and configure the retrogame c file Here we can map which buttons are connected to the GPIO and assign keyboard characters A few tweaks and commands will get set the Pi to save the controls and make them work properly Adafruit Industries https learn adafruit com pocket pigrrl Page 20 of 112 Adafruit Industries KEY_LEFT KEY_RIGHT KEY_UP KEY_DOWN KEY_LEFTCTRL IE KEY_LEFTALT KEY _Z KEY_ESC KEY_ENTER KEY_SPACE KEY_X Joystick 4 pins A Fire jump primary B Bomb secondary https learn adafruit com pocket pigrrl Page 21 of 112 3D Printing Two Button Version Four Button Version Adafruit Industries https learn adafruit com pocket pigrrl Page 22 of 112 Parts The parts are optimized to print as is oriented centered on your printers build plate The parts will fi
12. Industries https learn adafruit com pocket pigrrl Page 47 of 112 Thread PAM8302 Just like the powerboost PCB it s a good idea to thread the mounting hole with a machine screw We only need one hole threaded since we re using a single screw to secure the PCB to the enclosure Adafruit Industries https learn adafruit com pocket pigrrl Page 48 of 112 Solder Wires to PAM8302 Secure the PCB and solder the red wire to Vin pin and the blue wire to GND Mount PAM to enclosure Fit the breakout over the spot near the powerboost 1000c and line up the holes Hold the PCB in place while you fasten a single 4 40 3 8 flat phillips machine screw Adafruit Industries https learn adafruit com pocket pigrrl Page 49 of 112 Adafruit Industries https learn adafruit com pocket pigrrl Page 50 of 112 Solder power to PAM8302 Solder up the red wire from Vin to 5V on the powerboost 1000c Then connect the blue wire from Gnd to G on the powerboost 1000c Adafruit Industries https learn adafruit com pocket pigrrl Page 51 of 112 i il a M ain IE Te el Kol zi O Cut Pi Audio wires Measure and cut up two wires for connecting to the audio jack on the Pi to the audio input on the PAM8302 Adafruit Industries https learn adafruit com pocket pigrrl Page 52 of 112 Strip and Tin Wires otrip off the ends of each wire and tin the tips Quick tip you can secure both wires to a helping third
13. M8302 Solder Wires to PAM8302 Mount PAM to enclosure Solder power to PAM8302 Pi Audio Cut Pi Audio wires Strip and Tin Wires Tin Audio pins on PI Adafruit Industries https learn adafruit com pocket pigrrl 24 25 25 25 25 26 26 28 28 28 28 29 30 31 32 33 33 34 36 37 37 40 40 41 42 43 44 45 46 46 46 48 49 49 51 52 52 53 54 Page 3 of 112 Solder Audio Wires to Pi 55 Solder Audio wires to PAM8302 56 Mount Pi 56 Mounted Pi 58 Speaker 59 Prep Metal Speaker 59 Prep New Wires for Speaker 59 oolder Wires to Speaker 61 Install Speaker 61 Connect Speaker wires to PAM8302 63 2 4 PITFT 64 Install Header 64 Secure Header 65 Remove Tac 66 Add Buttons 66 Trim buttons 68 Disable GPIO 18 Lite 68 Prep Display PCB 69 Peel 69 Stick Display 71 Pi Cable 72 Connect Pi Cable 72 Remove Pi Cable Connector 72 Peel Cable 73 Mount Display 19 Install display buttons 75 Install PITFT 75 Mount PITFT 76 Perma Proto 78 Using Half size Perma Proto 78 Mark Perma Proto 78 Cut Perma Proto 79 Install buttons Two Action Buttons 79 Install buttons Four action buttons 81 Solder buttons to PCB 81 Prep Ground Wires 81 Solder Ground Wires 82 Up Button Ground Wire 83 Adafruit Industries https learn adafruit com pocket pigrrl Page 4 of 112 Trim legs 84 Buttons 85 Buttons 86 Connect Pi Cable to Powerboost 86 Soldered Power 87 Cut extra wires short 88 Heat Shrink Pi Cable 88 Install Ninjaflex
14. TER e GPIO 13 SPACE e GPIO 16 Key X OOOOOOOOOOOOOOOOOOOOOOOOOOOOOO Q990900000000000000000000000000 TERTE ETTER ESE A TEI N HOOOO ALOOOOOOOOOOOO ASHOOOOOOOOR od OOOOOOOOOOOO OOOOOOOOT gBOOOOOOOOOOOO gooooooooe 2rma Proto ae 000000000 Do0000000 0000000v OOOOOOO0O00pOOOOOOO 2299890 Sr BEER OOOO OO SO OOOOO OOOOOOOOOOOOOOOO O O Perma Proto Four Button Layout The four button version uses the same wiring from the Pi Cable except two extra wires need to be connected to the Perma proto PCB e Wire 3 GPIO 2 Key X e Wire 5 GPIO 3 Key Y Half size Perma Proto The diagram above shows which buttons are connected to the perma proto PCB Ideally want to Adafruit Industries https learn adafruit com pocket pigrrl Page 13 of 112 say you can customize and change it up but then the buttons won t fit in the cutouts on the 3D printed enclosure so if you wanna change this layout you ll also have to update the CAD so keep that in mind GPIO Ribbon Cable To make the wiring a bit easier we re using a Pi ribbon cable the 26 pin one This cable as a nifty connector that fits perfectly on the GPIO breakout on the 2 4 PITFT We ll remove the connector from the other side and wire that up directly to the buttons on the Perma Proto Adafruit Industries https learn adaf
15. Yr adafruit learning system Pocket PIGRRL Guide Contents Guide Contents Overview Raspberry Pi This Guide Prerequisite Guides Parts Tools Supplies Circuit Diagram Powerboost 1000c PAM8302 Perma Proto Two Button Layout PITFT Buttons Perma Proto Four Button Layout Half size Perma Proto GPIO Ribbon Cable ooftware Download and Burn SD Card Setup Network Adding More Games Adding Four Button Controls Configuring RetroArch Emulators Controls software Manual Initial Run Download and Burn SD Card Testing Retrogame Raspi Config Network PiTFT Setup Edit Config txt Mapping Controls 3D Printing Two Button Version Four Button Version Parts Support material Adafruit Industries https learn adafruit com pocket pigrrl O O NINO N 9 10 11 11 12 12 13 13 13 14 15 15 15 15 15 17 18 18 18 18 18 19 19 20 20 22 22 22 23 24 Page 2 of 112 Tolerances Materials Warping First layer Bed Leveling Ninjaflex buttons Quality Prints Magnets Wiring Prep Wiring Cut Strip Tin Repeat The Slide Switch Powerboost 1000C PAM8302 amp Speaker 2 4 PITFT Perma proto Switch Prepping Slide Switch Secure Slide Switch Wire Slide Switch Heat Shrink Slide Switch Install Slide Switch Powerboost 1000C Prep PowerBoost 1000C Wire Powerboost 1000C Thread Mounting Holes Install PowerBoost 1000C Mount PowerBoost 1000C Test PowerBoost 100C PAM8302 Prep PAM8302 PAM8302 Wires Thread PA
16. and secure four machine screws into the PCB These should fasten all the way through the PCB and the standoffs Adafruit Industries https learn adafruit com pocket pigrrl Page 76 of 112 Hi dd 3 7 m s rd J Em E re i m x t Lr Ty Adafruit Industries https learn adafruit com pocket pigrrl Page 77 of 112 Perma Proto EE EE EE LES RE amp amp OE KM MR m9 Uo mense EE EE SE EE i ERDER EE U wo ie o A Bk vo amp 5935 FE T 45 5 B o i a iE i a amp o i m ft ff 2 OE ff EERE LE sense Using Half size Perma Proto The perma proto PCB is a lot like a breadboard The rows are all linked together while the columns are not There s two power rails on the top and very bottom that include ground and voltage indicated by blue and red lines The columns are indicated by numbers 1 30 while the rows are indicated by letters A J The half size PCB has two separated centers in the center A E and F J Getting familiar with these labels will help you install the buttons and manage soldering wires Mark Perma Proto We need cut the PCB down so it can fit inside the enclosure Before we do that let s mark up on the PCB and draw quidelines e Mark the first row down including rail e Mark the first column across including rail e Mark row 26 down including rail Adafruit Industries https learn adafruit com pocket pigrrl Page 78
17. ap them in software But make sure ground is ground and nothing is intersecting ie two inputs wired to a single button Perma Proto Four button layout If your making the four button version you ll need to connect Wire 3 GPIO 2 to the button you want to be X Connect wire 5 GPIO 3 to the button you d like to be Y That s all the soldering for this project Congratulations you are now a master solderer Next up we need to add the battery and close the enclosure Almost done Adafruit Industries https learn adafruit com pocket pigrrl Page 102 of 112 Assembly s IIT n br ry ao s B n e um Tu wa t n c die 1 n EF 1 Final Wire Check It s a good idea to check all the wiring before closing it up It is relatively easy to open and adjust but you should consider reviewing all the connections If you think you have too much excess wire now would be a good time to can trim them down Adafruit Industries https learn adafruit com pocket pigrrl Page 103 of 112 EI EL i Le am th suet MA amp en ELT Ge el ET NE I yt ene CA N ees belts ow s dh a E j s 4 ae el d E ar ms Tel BEE UE EX d a T ry 3 paisg zel ants Tr ur A quy EY ele ee els 2 914 961 TEL Et di ee Eels aja Cth he i Pu e i e die i El dh ten D Plug Battery Get the 2000mAh battery and insert the cable to the JST port on the powerboost 1000c You might
18. breakout Adafruit Industries https learn adafruit com pocket pigrrl Page 30 of 112 queo ID Oo 00 00 00 00 2 4 PITFT The PiTFT is designed to fit ontop of the Raspberry Pi GPIO header The PCB on the display has a GPIO socket which can connect to a Pi ribbon cable We ll use the Pi ribbon cable to wire up tactile buttons for the controls The 2 4 PITFT has five spots on the PCB for tactile buttons Use these buttons as pause start L shoulder R shoulder or even exit ROM The display shares power with the Raspberry Pi so that gets powered on when the Pi ribbon cable is wired up to the powerboost 1000c Adafruit Industries https learn adafruit com pocket pigrrl Page 31 of 112 en 1 e eee eee Ce les i HE EGTE le se ENNE K HEIGHT Perma proto To connect our buttons we re using a perma proto half sized breadboard to contain them together on a PCB The PCB will need to be cut and trimmed to fit inside the enclosure The 6 controller buttons are soldered to the PCB The Pi ribbon cable is wired to these buttons The perma proto has a power rail so we can connect the ground together in series Adafruit Industries https learn adafruit com pocket pigrrl Page 32 of 112 Switch Adafruit Industries Prepping Slide Switch We need to prep the wires for the slide switch You can use any colored wires We used three different colored 30AWG silicone coated wires because it s thin flex
19. cally launch Emulation Station Your four buttons should all be working now The five button on the PITFT are ordered from left to right 1 L shoulder a key Adafruit Industries https learn adafruit com pocket pigrrl Page 16 of 112 Exit ROM esc key Start enter key Pause spacebar R shoulder s key D d LO Configuring RetroArch Emulators Controls Editing the retrogame file configures the buttons for the EmulationStation input it does NOT transfer to each emulator but you can configure the Global settings that are settings which should apply to all emulators sudo nano opt retropie configs all retroarch cfg Scroll down and look for the Keyboard Input block 1 Keyboard input Joypad and Joyaxis will all obey the nul bind which disabl rather than relying on a default input playerl a ctrl input playerl b alt input player y z input_player1_x x input_player1 start enter input player1 select space input playert a input playeri r s input player1 left left input player right right input player up up input player1 down down Now most of your four button type game systems mainly SNES should be linked to the right controls on the Raspberry Pi Adafruit Industries https learn adafruit com pocket pigrrl Page 17 of 112 ooftware Manual We recommend you go with the ready to download image rather than trying to do this by hand but here s details
20. e but it isnt required The pins should look like they dux O O O O OOO Omi have little soldered beads med sa T s lo od OS Bo AT its Ze i 9 zm a ad OU i MO e ek G O e 9 rH Adafruit Industries https learn adafruit com pocket pigrrl Page 40 of 112 amp O MER c OS Ld gt DO Lg w B Wire Powerboost 1000C Secure the breakout to the third helping hands and position it close to enclosure Heat up the pins on the breakout board with the soldering iron and insert the wire You ll want to do this pretty quickly about 5 seconds for each connection Blue to GND and green to EN You can skip the red Wire we don t need it Adafruit Industries https learn adafruit com pocket pigrrl Page 41 of 112 Thread Mounting Holes It s a good idea to thead the holes on the PCB to make it easier to mount to the enclosure 4 40 3 8 flat phillips machine screws work best Adafruit Industries https learn adafruit com pocket pigrrl Page 42 of 112 NR O TE dun Trj ME rr uu rid ay ob gd Hi Tu F EN go E s WEE MERC O CTP P m ES or mn eS a Ce Install PowerBoost 1000C With the wires on the powerboost soldered you can release it from the third helping hands It s a good idea to tuck the wires underneath the board before mounting it Position the breakout over the bottom enclosure with the USB port facing the cut out You
21. e A B and PiTFT buttons Quality Prints If your new to 3D printing and wondering how did you get such a nice print It s mainly because the bed was leveled really good and the slice tool path is clean When you re slicing parts it s a good idea to check the toolpath and see how the nozzle is generating the walls in the part Ideally you want to adjust your settings so that the walls are being printed with no infill and just the shells This makes the wall appear really clean Don t be fool by the photos though if you look carefully you can see we have imperfections and minor warped corners We printed the blue one in ABS and the purple in PLA The PLA parts even had a small amount of warping The ABS part was printed on a makerbot replicator 1 Purple parts were printed on a Replicator 2 Both using makerware Magnets In order to keep these parts closed we used two neodymium magents to keep them shut recommend gluing these to the two enclosure part before starting wiring These magnets fit inside the corner standoff located near the bottom roudned corner you can t miss it You can use super glue to keep them in place Be sure to double check the polarity before gluing them Adafruit Industries https learn adafruit com pocket pigrrl Page 26 of 112 Wiring Prep Wiring Before starting it s a good idea to get your tools and workspace suitated You ll want to have wires tools and solder close by while you work th
22. e need to create short wires to connect the buttons to the ground rail These wires should be pretty short about 10mm in length You ll need to create 5 of them Strip the tips off each wire and tin them oolder Ground Wires For each button you ll need to tin the closest pin to the power rail and the ground pin Since the rows are all linked together we can just solder the pins that are closed to each other The only button that doesn t is that up button which we ll make a longer wire Adafruit Industries https learn adafruit com pocket pigrrl Page 82 of 112 EEERRIGGGERERERE Up Button Ground Wire The up button for the d pad is the only button that doesn t use a short wire because its on the top section We ll need to create a longer wire to connect it to the ground rail Adafruit Industries https learn adafruit com pocket pigrrl Page 83 of 112 Trim legs Let s go ahead and snip the points legs from the PCB This will ensure our perma proto doesn t puncher or scratch any of the other components Adafruit Industries https learn adafruit com pocket pigrrl Page 84 of 112 et EETEEET ala eseese ee EEE oes eeeee eee ee 8 8 d 4 6 amp B B 1811127 13 14 15 ig 17 88580582525822525555552292259 eoeec ee eee eee ee 8 8 Buttons OK now we have the perma proto trimmed the buttons solder in place and ground wires we re ready to wire up the PiCable to the perma proto PCB This is a good
23. for the two button version To get the four buttons working in Retrogame you ll need to add them in the retrogame c file Make sure the Raspberry Pi is configured for Wifi Open up terminal and ssh into the Pi Get into the Adafruit Retrogame directory and edit the retrogame c file Adafruit Industries https learn adafruit com pocket pigrrl Page 15 of 112 ssh pi 210 1 10 XXX cd sudo nano retrogame c Scroll down to the part where you see the table called ioStandard not the ioTFT table that s for other projects Each line in brackets represents one pin on the GPIO header and a corresponding key code You can map the controls to any keyboard characters you d like The full list of available keycodes can be found in usr include linux input h ioStandard This pin key table is used when the PITFT isn t found using HDMI or composite instead as with our original retro gaming guide Input Output from usr include linux input h 4 KEY LEFT Joystick 4 pins KEY RIGHT KEY_UP n KEY DOWN KEY LEFTCTRL A Fire jump primary KEY LEFTALT B Bomb secondary KEY ex UX KEY Z a KEY A h ML KEY S LEA KEY ESC EXIT ROM KEY ENTER START KEY SPACE PAUSE After editing compile install the code and reboot with make retrogame sudo mv retrogame usr local bin sudo reboot When the Raspberry Pi boots back up it should automati
24. gh Adafruit Industries https learn adafruit com pocket pigrrl Page 71 of 112 Pi Cable Connect Pi Cable Line up the white wire on the ribbon cable with the white arrow on the PiTFT PCB Press firmly on the connector to plug it into the pins ELLLLLLLLLLLT TIT Itt n N fh iy n AA Ed SE bl NEIN am EE D ml L mc m D s mr zx i m il h n WW IUBE EN ae oe wo OB Remove Pi Cable Connector Grab your set of flush cutters and snip off the connector the other end Adafruit Industries https learn adafruit com pocket pigrrl Page 72 of 112 Peel Cable Peel apart each strand of wire from the cable like you would with stringy cheese Peel it just enough so they re still some ribbon near the fold Adafruit Industries https learn adafruit com pocket pigrrl Page 73 of 112 Adafruit Industries https learn adafruit com pocket pigrrl Page 74 of 112 Mount Display Install display buttons Now is a good time to insert that strip of buttons printed in Ninjaflex The buttons should fit into the cuts on the enclosure vane Ee Install PITFT Fit the PITFT into the enclosure and line up the buttons and mounting holes Grab four 4 40 3 8 flat phillips machine screws Adafruit Industries https learn adafruit com pocket pigrrl Page 75 of 112 TE T ETE TE P TALE A87 isi sa NO A J nn a 1 Mount PITFT Hold the PiTFT in place while you insert
25. i YS EE Ms OO OS N 69 1 X E Adafruit Industries https learn adafruit com pocket pigrrl Page 97 of 112 is a cest eee esse ete e 5 0 2 katern Vois eee OO EE Wire A Button Get wire 15 and connect this one to the A button Double check to see you re selecting the correct button orientation might mess with you a little after soldering all those wires m Adafruit Industries https learn adafruit com pocket pigrrl Page 98 of 112 en eee Ee TIEKE LI 7 sn sca m Pa ee Jefe Je m es Ow Adafruit Industries https learn adafruit com pocket pigrrl Page 99 of 112 ee ene 97 OK now we should be left with just one wire Safe 3 M to assume its wire 16 which will connect to the B rj button Adafruit Industries https learn adafruit com pocket pigrrl Page 100 of 112 EOS Ed u Ame Er e au WT AF RUW 0 i5 94V da FT e i es OG OG se eee i ae e B ee 2 i t ee 4 Ny P w 9 Wu s b 7 r L tha me d i j ad ww https learn adafruit com pocket pigrrl Page 101 of 112 Adafruit Industries Wired Perma Proto to Pi Cable It s starting to look finished after soldering all those wires It s a good idea to double check all the buttons pins and wires to ensure everything is correct If you got any of them mixed it is possible to rem
26. i A PiTFT 2 4 320x240 Touch Display Retropie w Emulation Station Mono Audio Amp 8 ohm 1W Speaker Tactile Buttons w Perma Proto Powerboost 1000C w 2000mAh lipo battery This Guide This tutorial will walk you through the assembly and wiring It s a challenging build but it s not the most hardest thing ever Our intent was to make this project easier than our previous PIGRRL build So if this is your first DIY electronics 3D Printing project you might want try a simplier project with less wiring and soldering That said you shouldn t feel discouraged to take on the project Adafruit Industries https learn adafruit com pocket pigrrl Page 7 of 112 Suum MAK DWOR Prerequisite Guides We recommend walking through these quides to get familiar with the software and components You don t have to but it s a good idea to check them out if you re not sure what all these things do Adafruit Industries https learn adafruit com pocket pigrrl Page 8 of 112 Parts The parts below were used in this project You don t have to use the exact same parts but the enclosure was designed to specially fit these parts so if you want to use different components you can but just know it may not fit in the provided enclosure You can of course tweak the CAD files Tools Adafruit Industries https learn adafruit com pocket pigrrl Page 9 of 112 Having the right tools makes this build easier and more fun Most of the
27. ible and easier to indicate Red for positive blue for negative and green for enable Measure three pieces of 30AWG wires and cut to approximately 6cm in length Use wire stripper to remove 3 4mm of insulation from the tips of each wire Use a helping third hand to hold the pieces of wire while you apply solder to the tips https learn adafruit com pocket pigrrl Page 33 of 112 okip the red wire we don t need a third connection for the slide switch only EN and GND Secure Slide Switch Secure the slide switch to a Panavise Jr to hold it in place while you solder Heat up the terminal lead on the slide switch with the tip of the soldering iron and lightly touch it with a strand of rosin core solder You ll need to tin the three terminals on the slide switch by applying a small amount of solder to them Adafruit Industries https learn adafruit com pocket pigrrl Page 34 of 112 Adafruit Industries https learn adafruit com pocket pigrrl Page 35 of 112 Wire Slide Switch While the switch is secured grab a prepped wire and bring it close to the first terminal on the slide switch Position the soldered tip of the wire to the terminals and hold it there steadily Press the soldering iron against the terminal and wire to solder them together You ll want to do this gently and quickly Ideally you want the middle terminal be the enable while the far left right be ground negative Adafruit Industries https
28. if you re interested Initial Run highly recommend following Phil Burgess http adafru it iPc guide on running OpenGL games on PiTFT That tutorial has all the nitty gritty details of setting up retrogamepie Chances are if you get Stuck you ll be able to find a solution there In this portion of the guide I ll do a high level overview of what did to get the software working Before we start you should have the following things Raspberry Pi A w USB power source MicroSD Card 4GB minimum USB Keyboard HDMI montior cable Running OpenGL games on PiTFT http adafru it fbe Download and Burn SD Card The first step is to download the retrogame pi image used the 2 6 version in this project Once it s downloaded you ll need to properly burn the IMG file to a microSD card used HPi SD card builder v1 2 http adafru it aMW on my mac Download RetroPie http adafru it elt Testing Retrogame Once the SD card is finished insert it into the Pi and boot it up You should get emulation station to boot automatically Configure your controls using a keyboard and test out the games in the ports section to make sure everything is running properly Raspi Config You ll want to enable and disable a few things in the raspi config Here s a list of things that need to Adafruit Industries https learn adafruit com pocket pigrrl Page 18 of 112 be configured Expand Filesystem disable overscan enab
29. le Device Tree enable SPI enable SSH force audio through 3 5mm jack Network Next step is to get wifi network situated on the Pi We need the Pi to connect to your local wifi network so you can SSH and remotely install utilities You re most likely going to want a USB wifi dongle To set this up make a small tweek to the etc network interfaces file and add my wifi network credentials to the wpa supplicant conf file Once you get that setup you can find out your raspberry Pi s IP address by using ifconfig command SSH into the Pi using terminal auto lo iface lo inet loopback iface ethO inet dhcp allow hotplug wlanO iface wlanO inet dhcp wpa conf etc wpa supplicant wpa supplicant conf iface default inet dhcp ctrl interface DIR var run wpa supplicant GROUP netdev update config 1 network ssid YOUR_NETWORK_NAME psk YOUR NETWORK PASSWORD proto RSN key_mgmt WPA PSK pairwise CCMP auth_alg OPEN j PITFT Setup We ll need to download the Adafruit PiTFT helper This is about 70mb so it may take a moment Once thats complete we have to specify which size PiTFT we re using use 22 for now Adafruit Industries https learn adafruit com pocket pigrrl Page 19 of 112 After that we ll need to download and configure raspi FBCP These tools will re route the graphics to the PiTFT We ll need to configure a few settings in the console setup and the config txt file sudo adafruit pitft helper t 22 Edit
30. ll want to tuck the three wires from the slide switch underneath the PowerBoost 1000c The stand offs should give you enough clearance Adafruit Industries https learn adafruit com pocket pigrrl Page 43 of 112 Mount PowerBoost 1000C You ll need 4 40 Phillips flat machine screws to mount the board to the enclosure Hold the breakout board in place while you insert and fasten two 4 40 machine screws into the enclosure Adafruit Industries https learn adafruit com pocket pigrrl Page 44 of 112 Test PowerBoost 100C Plug in the JST cable from the rechargeable battery into the JST port Flip the slide switch on to test if the circuit is working The blue LED should turn on indicating the battery is charged and ready If everything lights up disconnect the battery from the breakout board If not double check your wiring Adafruit Industries https learn adafruit com pocket pigrrl Page 45 of 112 PAM8302 z ze Eq J arra P T Be cite Cj D vi Ae band ha hy ik nn Fus NEN Lu k E LE LIN x Vien OP JO hy SEMO eda Oo Prep PAM8302 Get the amp breakout secured to the panavise jr Heat up the pins and apply some solder to all but the SD pin on the breakout Adafruit Industries PAM8302 Wires Measure and cut two 30AWG wires to about the length of the PCB Strip the ends off each wire and tin the tips https learn adafruit com pocket pigrrl Page 46 of 112 Adafruit
31. ndustries https learn adafruit com pocket pigrrl Page 111 of 112 Made One YES If you made one we want to see it We ask that you please share it with us Send us a photo on twitter better yet posit it on Thingiverse Take photos of your build and post a make on the We ll feature your build on our 3D Hangouts show You can even share it with us on Adafruit Show amp Tell show Post it on any social channel use hastags PIGRRL Adafruit so we can find it easily Adafruit Industries Last Updated 2015 10 21 12 42 18 PM EDT Page 112 of 112
32. ng tool or adjusting the faces in the CAD model Adafruit Industries https learn adafruit com pocket pigrrl Page 24 of 112 Materials We tested the parts in PLA ABS BambooFill and CopperFill You re can use whatever material and color you want to use in this project Warping Minimize warping by using blue painters tape Apply gluestick or aqua net hair spray on a glass plate if applicable If you re using a heated bed be sure to enclose the printer to avoid air drafts First layer Bed Leveling The first layer should be as thin as a sheet of paper Kinda of hard to see but here s some stuff to look out for If you see the layers are not fully bonding together the nozzle is too far from the bed If the layers are overlapping the nozzle is too close to the bed Ideally you want to baby sit the first layer to ensure your bed is leveled If your printers bed can be adjusted with thumb screws you ll want to perform leveling live while the print is taking place If you re using a z probe with auto leveling you ll have to manually offset your z height in gcode Ninjaflex buttons Adafruit Industries https learn adafruit com pocket pigrrl Page 25 of 112 You can use TPE flexible filament for the buttons The flexible filament works really well here because it gives you a bit of flex and grip when you press the buttons PLA ABS and other hard plastics will work just fine for the D PAD but it might not work so well with th
33. ng tubing to the pi cable wires keeps them together didn t actually heat it though depending on the sizing you may want to apply heat to well shrink it Adafruit Industries https learn adafruit com pocket pigrrl Page 88 of 112 ET BS Install Ninjaflex Buttons a Insert the ninjaflex d pad into the enclosure with the cut out No special orientation here its symmetrical so it should just fit Place the A and B ninjaflex button set over the two 12mm tactile buttons on the perma proto These should have a tight fit TEER amp 5 5 5 5534 fe eee eee ae uil ma Protoll tee sce l2eeeee hs C eee eee ee P eee tee ee eee eee eee eee eee eee eee eee Greene HAAK e T7 B S 1811121314 15 14 17 18 19 Je IE 27 23 24 4 8 88 8 8 888 8 88 COC CCH EET Adafruit Industries https learn adafruit com pocket pigrrl Page 89 of 112 OE ORE rr m m N p od Ta aa AE AE AE EE EE ee od i M a 1 S A e DE E i i O fate B s LE B a fa f DAI le EREE CALI E L A ha 325555555 jedes Ws CEMENT ELS p K Pr OES LAN AR re eal el LX selon m a is 222235550506 er 69 ow we eo a P b IB acr m Bavo es ki af m 8 Install Perma Proto OK grab the PCB and position it over the enclosure Notice those clips on the inner walls of the enclosure Those are going to hold the PCB in place So posi
34. of 112 Cut Perma Proto used a Dremel with a thin cut attachment to saw the excess pieces off the PCB recommend taking safety precausions when doing this Do it in a well ventilated area outside Use safety glasses and a breathing mask Secure the PCB to panavise jr Always cut away from you Clean dust from work area If you re not satisfied with the sharp edge use can use a grinding bit to round off the corners Install buttons Two Action Buttons Insert the four 6mm tactile buttons into the perma Adafruit Industries https learn adafruit com pocket pigrrl Page 79 of 112 proto and form the D pad Two 12mm square will be the A and B buttons essccsessse ssenceneee TERTE se Adafruit Industries https learn adafruit com pocket pigrrl Page 80 of 112 HIE lrma Proto eessosonsen peg ooo Tritt a 181112131415 1617 18 18 28 20 RAAD Install buttons Four action buttons If you re making the four button layout insert eight 6mm tactile buttons to the perma proto PCB Reference the photo above to get the correct spots for each button Adafruit Industries Solder buttons to PCB The buttons should hold in place once inserted into the PCB if they don t you can bend the legs to hold them in place Flip it over so the bottom is face up and secure the PCB to the Panavise jr Prep Ground Wires https learn adafruit com pocket pigrrl Page 81 of 112 W
35. rough the sections Cut Strip Tin Repeat The wiring portion of this build is split into sections relative to the components This hopefully makes it a good way to take breaks when completing sections The Slide Switch The slide switch is wired to the Powerboost 1000c with just three wires Vs GND and EN It s wired to the enable pin so that it safely discharges the powerboost 1000c This however will not safely power off the Raspberry Pi You ll still need to sudo halt p that to do that safely Adafruit Industries https learn adafruit com pocket pigrrl Page 28 of 112 er mmi ap aliu Gm OO OO O0 6 SE Powerboost 1000C The Raspberry Pi PITFT and PAM8302 are powered by the Powerboost 1000c and a 2000mAh lithium polymer battery A Pi ribbon cable connects from the PiTFT to the positive and negative power pins on the powerboost breakout board in place of the USB port The microUSB port on the powerboost can be used to recharge the lipo battery The lipo battery connects to the on board JST conenctor Adafruit Industries https learn adafruit com pocket pigrrl Page 29 of 112 ze we pe ET E ou c l ming a H I ou E ma Bid mm ut P a aM ClassO Ampie PAM8302 amp Speaker This 2 5w mono amplifier is powered by the powerboost 1000c 5V and G The audio input is connected to the audio jack pins on the bottom of the Raspberry Pi A single mini metal speaker is wired to the output on the
36. ruit com pocket pigrrl Page 14 of 112 Software Download and Burn SD Card The first step is to download the PocketPiGRRL image which includes retrogame fbcp tools and GPIO controls preinstalled Once it s downloaded you ll need to properly burn the IMG file to a microSD card 4GB min personally used RPi SD card builder v1 2 http adafru it aMW Download Pocket PIGRRL IMG http adafru it fOJ This IMG is optimized for the two button version If you re making the four button version you ll need to make a minor edit to the retrogame c file Setup Network Next step is to get wifi network situated on the Pi We need the Pi to connect to your local wifi network so you can SSH and install ROMs You re most likely going to want a USB wifi dongle To set this up edit the boot occidentalis txt and add your WiFi credentials Adding More Games The PocketPiGRRL image is preinstalled a few games but you can remotely SSH into the Pi and upload ROMs You can set the domain name in boot occidentalis txt by sticking the SD card into a computer and then connecting to pigrrl local or whatever you set it to or just look at the screen during boot right before the EmulationStation splash screen it will say my IP address is x x x x Then check out the Wiki on the RetroPie Setup page for how to upload ROMs Retropie Uploading ROMs http adafru it fbb Adding Four Button Controls The PiGRRL Img is currently configured
37. se are available in the shop but use whatever tools you have on hand 3D Printer http adafru it d9z Soldering Iron http adafru it doU Flush cutters http adafru it dxQ Wire strippers http adafru it 527 Panavise Jr http adafru it 151 Helping third hand http adafru it 291 Screwdriver http adafru it f76 Rotary cuttting power tool oupplies Wires screws magnets filament The supplies listed below are both helpful and necessary for completing this project 30AWG silicone cover stranded core wire http adafru it 2051 Heat shrink tubing http adafru it 1649 3D printing filament http adafru it 2080 Blue painters tape http adafru it ftO oolder rosin core 12 4 40 flat phillips machine screws http adafru it fkj or here http adafru it iPb 2 Neodymium Magnets 1 4 x 1 16 inch Disc N48 Adafruit Industries https learn adafruit com pocket pigrrl Page 10 of 112 Circuit Diagram pre BE Ee rPFPPPPPFPPPFPFFPFPPI u c T 2000mAh 3 7v The circuit diagram above shows the connections for the power and audio The lengths of the connections are not exact and mostly ment to visually represent which pin goes where It s best to use this as a reference for pins Powerboost 1000c The slide switch is wired to pin GND and EN The 2000mAh lithium polymer battery is connected to the JST port The 2 5V and 6 GND connections represent the wire number from the Pi ribbon cable
38. t on any printer with a minimum bed size of 120mm x 70mm Download Files http adafru it f6Z Adafruit Industries https learn adafruit com pocket pigrrl Page 23 of 112 File Name Settings Time to Print 220C 2 shells top st th op op 10 infill j 50 60 speeds pgp bot stl 1hr 10mins ninjaflex 0230 2 shells i PITFT Buttons stl 209 infill about 15 minutes 30 40 speeds ab buttons stl made for two Ninjaflex buttons about 15 minutes Makes the DPAD Up Down Left and Right Spass can also be printed in PLA or Ninajflex pou IN etes pgp 4 top stl used to make four button version top case about 1 hour pgp 4 bot stl used to make four button version bottom case about 1hr 15min flex 4btn stl used to make four ninjaflex button version about 6 minutes hard btn stl used to make four hard PLA buttons about 3 minutes each The settings adove are for reference You re encouraged to slice these files for your printer using your preferred slicing software Support material No raft or Support material necessary here The overhands are small enough that it doesn t present any problems with most FDM 3D printers Tolerances 3D printers tend to vary from one another so it s no surpise that one printer makes parts tighter than the other That slight 0 1mm difference is enough to make things not fit exactly Maybe the mounting holes are too tight or the speaker doesn t fit If that s the case you can loosen them up with a fili
39. the two parts together to connect it Wire Kink Check The top section should be closed now leaving the bottom and sides a bit open This is where you need to make sure none of the wires are outside the enclosure it s easy to close it up and kink a wire when doing this You ll most likely get the two magnets to snap together here since they re pretty strong Adafruit Industries https learn adafruit com pocket pigrrl Page 108 of 112 Fasten Last Screw OK we re totally almost finished Grab a single 4 Adafruit Industries https learn adafruit com pocket pigrrl Page 109 of 112 40 flat phillips machine screw and insert it into the bottom corner on the back of the enclosure Hold the two parts together while you fasten the screw all the way through the enclosure The whole screw will go inside the enclosure and fasten two standoffs together This single screw keeps the two halves together The magnet keeps the other corner closed while the top is closed with the aid of the GPIO header And thats about it Adafruit Industries https learn adafruit com pocket pigrrl Page 110 of 112 Final Build This build was a lot easier to wire and assemble than the previous PIGRRL projects Using the perma proto and tactile buttons in my opinion are more hassle free and ultimately feel better too There s a bit of extra room in the enclosure for other components and buttons so feel encouraged to customize Adafruit I
40. tion and orient the PCB with the appropriate buttons going into the right spots The PCB needs to be inserted at an angle so that it can fit into place Insert the PCB with the A and B button side going in first the PCB should go underneath the clip Adafruit Industries https learn adafruit com pocket pigrrl Page 90 of 112 J gl 4 p a ee 6 E E e 5 5 J eee E Ta i ee F a d zm ch OM ao ees OE OOo Ensure the d pad is still in place while inserting the perma proto PCB Carefully angle it into place You need to fit the ninjaflex AB buttons into the cutouts then press down the PCB to fit into place This takes a little force and finesse The clips are fairly strong so you don t need to be super gentle Wire Ground Let s connect the Pi Cable to the ground on the Perma Proto We can use a single ground wire from the Pi Cable and solder it to the ground rail on the Perma Proto PCB You can count and pull on the wires to determine which one to use Wire 9 on the Pi Cable is associated with a ground connection Beheernet eere Adafruit Industries https learn adafruit com pocket pigrrl Page 91 of 112 Be 1 KC HAN Nao w OR N ae d Sir z gt or Ke ROOM ET Oe nO n OO OT B Non DUNS RENTA Mere ET POPES Wire Left Button Find an available pin on the perma proto that is Adafruit Industries https learn adafruit com pocket pigrrl Page 92 of
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