Anaren Integrated Radio Multi-Sensor Development Kit User`s Manual
Contents
1. 13 3 2 2 13 52 9 14 3 2 4 OCT O 16 3 2 5 17 3 2 6 USB to Dual DART Bridge U10 17 3 2 7 Voltage Regulators 17 3 2 8 18 3 2 9 Seld ctio Cc NETT 18 ee CHOI m 24 27 3 5 of Materials BOM a a 31 THIS PAGE LEFT INTENTIONALLY BLANK 5 Development Kit User s Manual Page 5 of 36 Release Date 1 16 2015 1 Multi Sensor Development Kit The Bluetooth Smart Multi Sensor Development Kit includes the following One Multi Sensor Development Board MSDB with Anaren AIR A20737A module installed One USB 2 0 cable Type A to Mini B Two 16 pin headers that may be soldered on to the Multi Sensor Development Board Quick Start Guide Regulatory Guide 1 1 Multi Sensor Development Board Overview The Multi Sensor Development Board referred to as MSDB in the remainder of this document provides a development environment to quickly build and demonstrate applications for the 20737 AIR module It provides onboard sensors and controls that allow development engineers to quickly put together and demonstrate prototypes The board includes the foll2. r PER PP al IPS PET NONU NL oy tai PEE ES 1 9537 JI d31 898 OpxoJppy JAALA 22 6 8 2 9 S r L Figure 7 Schematic Sheet 3 aN LL 2 e er 5 Development Kit User s Manual Page 27 of 36 Release Date 1 16 2015 3 4 PCBLayout BLE SE 405 0449 gt FRMOROIOROROROROROKOSOROROROROKORO o o Po Figure 9 PCB Layout Inner Layer GND Plane Page 28 of 36 O 00000000 Figure 11 PCB Layout Bottom Layer 5 Development Kit User s Manual Release Date 1 16 2015 OQ OQ OQ lt oo 99 o 8g lt 5 Development Kit User s Manual Page 29 of 36 Release Date 1 16 2015 S3 gt 16 55 R46 SI 3 2 g gt ls o N L I a D gt LLL i Hal Luis vL Dl RRR gt rra lt c45 Y29 oo R45 I L L C31 e o n r30980 T32070 lt Ile 99 19 R9 LS1 2 E 6 914 RI J 12 TRAC 7 sg 7 22 9 4 aX rose 2 U13 DD 621 gt gt as g 58 kd m 2 DRDD C33 o S L 2588 R52 2002 N 10 O
3. What ll we think of next Anaren Integrated Radio Multi Sensor Development Kit User s Manual Q O lt 1 16 2015 Release Date THIS PAGE LEFT INTENTIONALLY BLANK 5 Development Kit User s Manual iii Release Date 1 16 2015 CONTENTS Ja M li Sensor Development Kilat on ra ma deser 5 1 1 Multi Sensor Development Board Overview 5 2 Getting Started with nnne nennen nnn nnns nnns 6 2 1 Anaren Atmosphere 8 22 Qelling Demo ADD dace RAS ded 8 DOO A 8 2 3 1 e UD u EEEE EERE EE 8 2 3 2 Establishing a Wireless Connection 8 2 3 3 Controlling Monitoring the MSDB 9 3 5 Development Board Hardware 10 3 A Elecuical mE EET 10 3 1 1 Absolute Maximum RatlingS 10 3 1 2 Recommended Operating Conditions 11 S22 DCSE REM 12 3 2 1 A20737 Radio Module U1
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6. 5 Development Kit User s Manual Page 9 of 36 Release Date 1 16 2015 2 3 3 Controlling Monitoring the MSDB Now that your mobile device is connected to the MSDB board you can observe and do several things In the demo application the mobile device polls the MSDB for its status on a regular interval So the monitored readings should respond fairly quickly but not instantaneously Try the following 1 The board s IR Temperature Sensor should be reporting its temperature readings Try holding your hand over the board and you should see the temperature go up Remove your hand and it should go down Note that you do not have to touch the temperature Sensor 2 The Accelerometer should be reporting the tilt of the board by moving the blue bubble in the gray box Try tilting to the board in different directions The bubble should move around inside the gray box in the same direction the board is being tilted 3 The Compass should be showing your magnetic heading Note that this is very sensitive and as such does not always read correctly when in the presence of magnetic materials or strong magnetic fields Be sure to hold the board horizontal to get the best compass reading 4 The Joystick image should reflect the position of the joystick Try moving the joystick and hold it in a new position and observe the image Pressing the joystick in the center position into the board will play a tone on the buzzer 5 The Red
7. 5 lt C VDDIO 0 3 Input RF Level Range power not applied to any supply rail According to JEDEC STD 22 method A114 Human Body Model HBM According to JEDEC STD 22 C101C Charged Device Model CDM ESD 5 Development Kit User s Manual Page 11 of 36 Release Date 1 16 2015 3 1 2 Recommended Operating Conditions Table 2 and Table show the allowed temperature range and voltages under which the MSDB may be operated Table 2 Recommended Operating Conditions Parameter Min Max Unit Condition ____ supply Votage on CON a2 22 36 Operating Temperature By design only Not tested Table 3 Digital l O Characteristics Signals on J1 amp J2 Parameter Min Unit waw 0 8 x VDDIO VDDIO EN 2 2V VDDIO 3 6V 12 of 36 5 Development Kit User s Manual Release Date 1 16 2015 3 2 Functional Description A block diagram of the MSDB hardware is shown in Figure 4 IR Detector VEMD 10940F Current Monitor INA216A2 IR Emitter VSMB10940 Accelerometer LIS3DH Digital Compass HMC5883L RGB LED IR Temp Sensor 1201 L Buzzer Pushbuttons Reset Boot ROM 2232 2 Joystick 5 pole Figure 4 Hardware Block Diagram Multi Sen
8. CAP CER 0 22UF 6 3V CAP CER 2 2UF 6 3V m Md 1096 X5R 0402 0005 C3 C12 C16 C19 C25 C35 C37 CAP CER 4 7UF 6 3V C39 C45 2096 X5R 0402 CAP CER 9PF 50V NPO 0006 C31 C34 s CAP CER 10000PF 16V C4 C8 C10 C11 C13 C14 C17 C20 C21 C22 C24 C26 C27 C28 C29 CAP CERO TON 0008 0 CAP CER 100UF 6 3V 20 5 1210 CAP CER 10UF 6 3V 2096 X5R 0402 CAP CER 12PF 50V 196 nn 5 NPO 0402 LED RGB SQUARE LED 1 0 5 630NM T ue Ey RD WTR CLR SMD 0014 D3 D4 D6 EN LED 1X0 5MM 570NM 0010 N N GN WTR CLR SMD mumum x 1 d _ LRP a gt CONN HEADER 100 SNGL STR 2POS CONN RCPT STD Page 31 of 36 Comment Not Populated Lumex SML LX0404SIUPGUSB Kingbright APHHS1005SURCK Kingbright APHHS1005CGCK Vishay VEMD10940F Vishay VSMB10940 Not Populated Not Populated Page 32 of 36 0021 0022 0023 0024 0025 0026 0027 0028 0029 0030 0031 0032 0033 0034 0035 0036 0037 0038 0039 0040 5 Development Kit User s Manual Helease Date 1 16 2015 1 RES 0 0 OHM 1 10W JUMP 0603 1 1 INDUCTOR 2 2UH 1 SMD 1 MOSFET N CH 100V 01 02 03 04 Q7 Q8 m 170MA SOT 23 MOSFET P CH 50V 1 RES 30K OHM 1 16W 5 0402 13 gt RES 4 7K 1 16W RES 10M OHM 1 16W R9 R17 R18 R19 R23 47 R49 R2 R16 R20 R21 R30 R36 R43
9. O 0 o AAAA eS O 6000 om cm Q4 9mm _ 54 R4 ROD 2 u Bs 5 am Jes c2 gt 323 brits amp Pa r3 2220 mm B v e d IN N R 1 jJ c3 c 1 PH a bj LL L L o 3 06 08 gt E 99 _ so Ls Le EE 4 5 Figure 12 PCB Layout Top Silkscreen d m 5 gt o m 9 o Qo o 158 1553 1554 1555 152 1550 1555 1b13 gt 153 1bT4 o v 1bT8 x 9 2 gt m gt n 2 n f 2 1bT a 155 1510 1bTe 1bTS 1bT5 Figure 13 PCB Layout Bottom Silkscreen 30 of 36 5 Development Kit User s Manual Release Date 1 16 2015 OOOO i qw 0 asn 1198 Figure 14 Layout Bottom Layer Mirror Image TP17 TP12 TP15 TP18 bar TP2 A TP1 E A 3 gt B 19 N O N TP18 TP14 TP3 TP13 TP20 TP27 TP21 TP26 9 TP22 TP25 N TP23 TP24 Ef 16 Figure 15 Layout Bottom Silkscreen Mirror Image 1000 88965 LATA 4 5 Development Kit User s Manual Release Date 1 16 2015 3 5 Bill of Materials BOM Table 7 Bill of Materials 1 HOLDER BATTERY nds 20MM COIN O O O N NENNEN
10. P15 To use the onboard photodiode the zero Ohm resistor installed in position 2 C should be moved to position 1 C LED Crystal Select R77 R78 These jumpers select whether ports P11 27 and P12 26 on the A20737 module are connected to the onboard 32kHz crystal or RGB LED Each is 3 terminal footprint which accepts a 0603 resistor in one of two positions By default the RGB LED is connected to the A20737 To use the onboard crystal the zero Ohm resistors installed in position 1 C should be moved to position 2 C Connectors Coin Cell Battery Holder BT1 The battery holder is located on the back side of the board and accepts a standard CR2032 lithium coin cell When installing a battery be sure the positive side is facing outward Inserting the battery upside down creates a short circuit between the battery holder and terminals however this will not damage the MSDB or the battery provided there are no other voltage sources connected to VDD Micro USB Connector J4 This USB 2 0 compliant micro B connector provides a USB connection to the MSDB In addition to providing power to the board the USB signals directly interface with a Dual UART Bridge used for programming the A20737 module as well as for communication with the peripheral UART port on the A20737 5 Development Kit User s Manual Helease Date 1 16 2015 e J1 UART FC Reset Buzzer and Interrupt Interfaces Pin Cama S
11. position when board is powered from 5V USB or J3 o Battery Select this position when board is powered from the battery or VDD Caution Remove the coin cell battery when applying a voltage to VDD Failure to do so may cause the battery to explode which may result in damage to the MSDB and or personal injury UART Switch S6 This switch controls the connection of the HCI UART signals between the USB to Dual UART Bridge and the A20737 module This is accomplished by controlling one of the supply voltages and the output enable of a dual supply bidirectional level shifter device When the switch is set to USB the level shifter is powered and its output is enabled making the connection between the UART Bridge and the A20737 module With the switch set to EXT one side of the level shifter is powered down and the output is disabled breaking the HCI UART connection by placing the signals in a high impedance state not physically disconnected o USB Select this position for programming the A20737 module EXT Select this position to run the loaded application following power up reset Peripheral UART Switch S2 This switch controls the connection of the peripheral UART signals between the USB to Dual UART Bridge and the A20737 module This is accomplished by controlling one of the supply voltages and the output enable of a dual supply bidirectional level shifter device When the switch is set to USB the level shifter is p
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14. Green and Blue sliders control the color and brightness of the RGB LED on the MSDB Try moving them and observing the LED 6 If you connected a terminal emulator to the USB COM port then you should see some status information on the terminal screen flowing as well This shows the PUART port operating properly The meaning of the data is not important The flow is what you re looking for Ensure the PUART switch 52 is set to the USB position default That s it You have now verified that you can communicate with control and monitor the MSDB components using the Atmosphere Demo App Please visit the Anaren Atmosphere Wiki https atmosphere anaren com wiki to find out how to develop your own custom embedded and mobile Apps 10 of 36 5 Development Kit User s Manual Release Date 1 16 2015 3 Multi Sensor Development Board Hardware 3 1 Electrical Characteristics 3 1 1 Absolute Maximum Ratings Under no circumstances shall the absolute maximum ratings given in Table 1 be violated otress exceeding one or more of the limiting values may cause permanent damage to the device Caution ESD sensitive device Precaution should be used when handling the device in order to prevent permanent damage Table 1 Absolute Maximum Ratings Parameter Supply Voltage on 5V USB Supply Voltage on VCOIN Supply Voltage Supply Voltage on VDDIO Supply Voltage on VDD RF Voltage on Any Digital Pin
15. R1 The Vishay VEMD10940F is a side looking high speed and high sensitivity PIN photodiode with a daylight blocking filter matched to IR emitters in the 830nm to 950nm range Please refer to the VEMD10940F datasheet on the Vishay website for further info regarding this component Switches Joystick S1 The Joystick is a multi directional switch with five positions UP B DOWN C RIGHT A LEFT D and CENTER It connects to the onboard GPIO Expander device See section 0 for more details regarding the GPIO Expander and how to generate an interrupt when the Joystick is pressed Reset Button S3 The Reset button is used to issue a hardware reset to the A20737 module Press it momentarily to reboot the 20737 Boot ROM Button S4 The Boot ROM button is used to recover the A20737 from a situation where the module s EEPROM becomes corrupted This button forces the 1 C SDA line to VDDIO which prevents the processor from booting from EEPROM only boots from ROM Multi Sensor Development Kit User s Manual Page 15 of 36 Release Date 1 16 2015 USB Battery Power Switch S5 This switch selects the MSDB power source In most development circumstances the board will be powered by the USB cable but it may be powered by the CR2032 coin cell battery located on the back of the board instead The board may also be powered by applying a supply voltage to the VDD pin on J1 14 o USB Select this
16. R52 R54 R62 R64 R65 R68 R70 JP LS 1 BUZZER PIEZO 25VP P SMD R R 1 16W 5 0402 RES 0 2 OHM 1 8W RES 1K OHM 1 16W R25 R32 2 RES 470 1 16W R3 R7 R8 R14 gt R26 R46 R66 RESTE QUESO R72 R75 N RES 0 0 OHM 1 16W R39 R40 R57 JUMP 0402 R4 R10 R27 R28 R31 R33 R34 R35 R37 R38 R41 R42 R44 R45 23 RES 0 0 OHM 1 16W R53 R55 R58 R59 R60 R61 R63 JUMP 0402 R69 R73 RES 0 0 OHM 1 10W R5 R77 R78 RES 12K 1 16W RES 10 0K OHM 1 16W 596 0402 RES 2 2K OHM 1 16W Comment Not Populated Not Populated Not Populated Not Populated 5 Development Kit User s Manual Page 33 of 36 Release Date 1 16 2015 O S 2 sr 2 me A pO0as _ Page 34 of 36 5 Development Kit User s Manual Release Date 1 16 2015 HISTORY Date Author Change Note No Notes 1 9 2015 tnitial Draft 146 205 Initial Release The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG Inc and any use of such marks by Anaren Inc is under license Other trademarks and trade names are those of their respective owners THIS PAGE LEFT INTENTIONALLY BLANK If you have additional questions need samples or would like a quote please email the AIR team at AlR anaren com For a full list of our franchised distributors please visit our websi
17. SB cable connected Helease Date 1 16 2015 5 Development Kit User s Manual Schematics Page 24 of 36 3 3 T 4994 WY VY v Yl0c S cYV eyveg 9 1osu s NNN uequinw jueuin2oq ano ang J 1000 08968 JALIL 4 6068 ZEP SLE L4 al EB WOT SAVMOMOIIN N3SVNY GAZINOHLNY A1SS33dX3 SV Ld30X3 NI333H Q3NIVLNOO NOILLVIAHOJNI ANY 35070514 ASN atvorndna OL 1 SH3JSNVH L HO S3JJNOO SIHL JO NOISS3SSOd HON 1451933 H3HLISN 1VILN3QOIJNOO SNIVLNOO S310LLLLSNOO ONY ONI SAVMOSWOIMN JO SI 039012814 VIVO ANY ANY SIHL AHVILSIHdOHd N3HVNY 2 H Noovalev ver ezr J 2 2 2 S 2 a ie 5 5 Y 9 cr15 SD Ids td NNN e SIH avna Woudss id 9 lt INI zd t SsvdAH bie BOn 145 vd 4 19534 01 17 C vare XH IHVIId ecard of QJ i zr o XI TIVING zed er d aS 8 17 Seg c G Sere OST TAS 524 Tos 9 E TOS aS ved t yas 9 NJZZIIH Std vrd XI OH 1 lt mee XIST GUST
18. aren com wiki However the following sections also provide step by step instructions to guide you through the process 2 2 Getting the Demo App Apple iOS Devices Go to the Apple App Store and search for Anaren Atmosphere Download and install it on your device e Android Devices Go to the Google Play Store and search for Anaren Atmosphere Download and install it on your device 2 3 Using the Demo App 2 3 1 Hardware Setup The MSDB comes preloaded with the Demo Application firmware and all switches are in the correct state All that is needed is power Using the provided USB micro B cable connect the MSDB to a PC laptop or USB battery 2 3 2 Establishing a Wireless Connection 1 On your mobile device run the Atmosphere App that was installed earlier 2 Click the Demo button on the Atmosphere App no need to login 3 You should now see the compass and other controls amp monitors the demo provides 4 Click on the Gear Icon in the lower right corner This will put you in the Scanning Window 5 Click on the scan button at the bottom You should now see the board show up as ATDemo 6 Click on the AT Demo board It will become highlighted in blue 7 Click on the connect button at the bottom The App should connect discover and then go back to the original demo screen Your mobile device is now connected to the MSDB It is actively monitoring the board status and controlling some of its operation
19. ate activity on the HCI UART port They are controlled directly by the USB to Dual UART Bridge The red LED D2 will flash each time a character is transmitted from the UART Bridge to the A20737 module while the green LED D4 will flash each time a character is received from the A20737 module Peripheral UART LEDs D3 D5 These LEDs indicate activity on the Peripheral UART port They are controlled directly by the USB to Dual UART Bridge The red LED D5 will flash each time a character 1 transmitted from the UART Bridge to the A20737 module while the green LED 03 will flash each time a character is received from the A20737 module USB Power LED D6 The USB power LED indicates the presence of 45V whether supplied via the USB connector or J3 and is powered from the onboard 3 3V LDO Please note that if the USB Battery Power Switch 55 is set to Battery and 5V is applied to the board the LED will be ON but the A20737 module and sensors will not be powered Buzzer LS1 The piezoelectric buzzer is specified for 1kHz to 6kHz operation 4KHz nominal and should be driven with a 50 duty cycle square wave The drive signal is connected to port P14 PWM2 of the A20737 module 5 Development Kit User s Manual Page 17 of 36 Release Date 1 16 2015 3 2 5 3 2 6 3 2 7 GPIO Expander 06 The Exar XRA1201P GPIO Expander 2 is 16 bit device which adds additional I O for use by a microcontrol
20. be controlled externally if A20737 module 11 11 firmware configures PO pin as high PO PO BYPASS impedance input 0 Bypass VDDIO VDD 17 Switching VDDIO 2 1V Buzzer drive signal May be controlled J1 12 externally if A20737 module firmware P14 configures P14 as high impedance input Must be 50 duty cycle J1 13 P2 P2 INT GPIOZ Active low interrupt signal open drain EN DC DC converter supply voltage J1 14 VDD May also be used to connect an external ammeter multi meter along with J1 15 if trace between JP1 terminals is cut Current Sense Amplifier negative input terminal May also be used to connect an external ammeter multi meter along with J1 14 if trace between JP1 terminals is cut Current Sense Amplifier analog output The amplifier has a gain of 50x With the 0 2 Ohm shunt resistor current is calculated by simply dividing the voltage at this pin by 10 1 V 10 5 Development Kit User s Manual Page 21 of 36 Release Date 1 16 2015 e J2 RGB LED SPI and PUART Interfaces Table 5 J2 Pinout J2 1 J2 2 VDD RF for RF circuitry Connected to VRF LDO OUT 1 2V by default LED drive signal for Green segment of tri color LED May also be used as general purpose J2 3 GPIO P12 11 P11 P27 LED G GPIO P26 This pin and J2 4 also share the connections for a 32kHz crystal Y1 To use the crystal move the position of R77 from 1 C t
21. ect 40C to 125C range Please refer to the TMPO06 datasheet on the TI website for further info regarding this device The bus address of this device is 0x40 Current Sense Amplifier U7 The Texas Instruments INA216A2 Current Shunt Monitor analog amplifies the voltage across a current sense resistor with a gain of 50 Please refer to the INA216 datasheet on the 1 website for further info regarding this device The sensor s analog output is routed to J1 16 where it can be sampled using an oscilloscope to see changes in load current in real time A filtered version of this signal is routed to the accelerometer s ADC2 input such that average current can be read by the A20737 To calculate current flowing through the 0 20 sense resistor simply divide the measured voltage by 10 Ishunt Vshunt Rshunt where Rshunt 0 20 and Vshunt Vmeas 50 Please note that with a 0 2O sense resistor this amplifier is not intended to accurately measure sleep current It is better suited for the higher Tx and Rx currents 14 of 36 5 Development Kit User s Manual 3 2 3 Helease Date 1 16 2015 Infrared Emitter IR2 The Vishay VSMB10940 is an infrared 940nm side looking emitting GaAIAs diode On the MSDB it is driven by the same FET that drives the blue segment of the RGB LED Please refer to the VSMB10940 datasheet on the Vishay website for further info regarding this component Infrared Detector I
22. ehematie Signal Name J1 1 P15 ds C G d X GND ommon Groun 6 41 9 Table 4 J1 Pinout Schematic Sehematie Signal Name Name P15 VOLTAGE IRRX 2 bidirectional data line open drain J1 7 2 SCL 41 8 GND TMC Description Voltage on this pin is 0 25 x VDDIO 10k to GND 30K to VDDIO An external voltage may be applied and measured using the A20737 module s ADC Moving the position of R5 from 2 C to 1 C connects the photodiode to the A20737 module Alternatively R5 can be removed and an external photodiode may be connected to this pin HCI UART RxD Serial data input for the HCI UART interface A20737 module has a 10kQ internal pull down resistor SWDIO Serial Wire Debug bidirectional data line HCI UART TxD Serial data output for the HCI UART interface SWDCLK Serial Wire Debug clock SWD Target Power Supply voltage output for powering buffers in an external JTAG SWD probe 2 Power Supply voltage output for powering external IC devices Max load current of external devices should be limited to 25mA for all VDDIO pins A20737 module has a 10kQ internal pull down resistor For factory test only Leave unconnected Page 19 of 36 a Page 20 of 36 5 Development Kit User s Manual Release Date 1 16 2015 J1 10 RSTH RESET A20737 module hardware reset Active low DC DC converter control May
23. ler with limited pin count On the MSDB the primary role of the GPIO expander is to funnel all interrupts from the various devices on the board into a single pin on the A20737 module Please refer to the XRA1201 datasheet on the Exar website for further info regarding this device The 12 bus address of this device is 0x21 USB to Dual UART Bridge U10 The FTDI FT2232H is a USB 2 0 high speed 480mb s to dual multipurpose UART FIFO Port A connects to the HCI interface on the A20737 and is used for programming the module s onboard EEPROM with the application firmware Port B connects to the peripheral UART on the A20737 and may be used to send data between the application firmware and a PC laptop Please refer to the FT2232H datasheet on the F TDI website for further info regarding this device Voltage Regulators 3 3V LDO U14 The Texas Instruments TPS73433 is a 3 3V 250mA low dropout linear regulator with low quiescent current ultra low noise and high PSRR This regulator is powered by 5V which is supplied to the MSDB either from the USB connector or via J3 It supplies power to the USB to Dual UART Bridge circuitry as well as to the rest of the board when the USB Battery Power Switch is set to USB 2 1V DC DC Converter U9 The Texas Instruments TPS62730 is a 100mA step down converter with bypass mode and is intended for ultra low power wireless applications In bypass mode the converter stops switching and passes its input
24. o 2 C R78 must also be moved LED drive signal for Red segment of tri color LED May also be used as general purpose 2 4 GPIO P11 P12 P12 P27 LED R GPIO P27 This pin and J2 3 also share the connections for a 32kHz crystal Y1 To use the crystal move the position of R78 from 1 C to 2 C R77 must also be moved Pin Label LED drive signal for Blue segment of tri color LED and IR Emitter May also be used as general purpose 5 P13 P28 LED B IRTX GPIO P13 P13 GPIO P28 Please note that the IR Emitter is active when the Blue segment of the tri color LED is ON 22 of 36 Pin Label J2 6 VDDIO Schematic Signal Name VDDIO 5 Development Kit User s Manual Release Date 1 16 2015 Description x lt n SPI Power Supply voltage output for powering external SPI devices Max load X current of external devices should be limited to 25mA for all VDDIO pins J2 7 SPI clock signal J2 8 P24 J2 9 P25 J2 10 P4 J2 11 P3 P24 SPI SCLK P25 SPI MOSI P4 SPI MISO P3 SPI CS PUART CTS May also be used as general purpose if SPI functionality not required GPIO P24 SPI data signal master to slave May also be used as general purpose if SPI functionality not required GPIO P25 SPI data signal slave to master May also be used as general purpose if SPI functionality not req
25. owered and its output is enabled making the connection between the UART Bridge and the A20737 module With the switch set to EXT one side of the level shifter is powered down and the output is disabled breaking the PUART connection by placing the signals in a high impedance state not physically disconnected This allows an external device to be connected to the PUART signals on the J2 connector pins 13 amp 14 without flow control pins 11 thru 14 with flow control o USB Select this position to use the USB to Dual UART Bridge for PUART communication o EXT Select this position to use an external device for PUART communication Please note that an external device should not be connected to J2 while this switch is set to USB Doing so may damage the MSDB and or the external device Page 16 of 36 5 Development Kit User s Manual 3 2 4 Helease Date 1 16 2015 Indicators RGB LED D1 The RGB LED can display red green blue or just about any mixture of the three colors Each LED segment is driven by a FET and controlled by GPIO or PWM PWM is required to achieve color mixing beyond the 7 color combinations possible using GPIO The LED controls are active high i e a logic 1 turns ON the LED while a 0 turns it OFF The LED segments are connected to the following ports on the A20737 module o Hed P26 PWMO o Green P27 PWM1 o Blue P13 PWM3 HCI UART LEDs 02 D4 These LEDs indic
26. owing features Digital compass Infra red temperature sensor Accelerometer Five way switch joystick Buzzer Infra red emitter and sensor Multi colored LED Figure 1 Multi Sensor Development Board Overview Page 6 of 36 5 Development Kit User s Manual Release Date 1 16 2015 20737 MSDB1 81 R2 255 ES k x n p d _ IE n Rie m R29 Ls LJ v Ac 1 L L Jgs Fi a 5 109199 T E p 2 voo 17 TEL P D me 53 K Ji Figure 2 Multi Sensor Development Board Front Component Side 5 Development Kit User s Manual Page 7 of 36 Release Date 1 16 2015 J2 Pinout J1 Pinout Anaren 9 t KE s mj xi T LI u Is k m EE Ti Lil a a GPIO Test Points Bl CR2032 Coin Cell Battery Holder HCIUART a Page 8 of 36 5 Development Kit User s Manual Release Date 1 16 2015 2 1 Atmosphere Wiki The best place to start learning about how to use the MSDB with your mobile device is to visit the Anaren Atmosphere Wiki https atmosphere an
27. sor Development Kit User s Manual Page 13 of 36 Release Date 1 16 2015 3 2 1 A20737 Radio Module U1 The Anaren Bluetooth Smart module uses the Broadcom BCM20737 System on Chip SoC The module provides all the required power supply filtering and decoupling as well as an integrated PCB trace antenna and RF matching network Interfaces for connecting external components include analog 10 bit ADC GPIO PWM SPI and UART 3 2 2 Sensors Accelerometer U4 The ST Microelectronics LISSDHTR 3 Axis Accelerometer SPI is used to sense acceleration in all directions including gravity This device has an embedded microcontroller that has motion recognition capabilities such as free fall detection and click double click recognition It also offers 3 auxiliary ADC channels Please refer to the LISSDHTR datasheet on the ST website for further info regarding this device Digital Compass U2 The Honeywell HMC5883L 3 Axis Digital Compass is used for low field magnetic sensing in applications such as compassing and magnetometry can measure both the direction and the magnitude of Earth s magnetic fields Please refer to the HMC5883L datasheet on the Honeywell website for further info regarding this device The IC bus address of this device is Ox1E IR Temperature Sensor U3 The Texas Instruments TMPOO6B Infrared Thermopile Sensor 1 C measures the temperature of an object without the need to make contact with the obj
28. supply to the output While switching is enabled the converter outputs a regulated 2 1 volts To conserve power the converter is typically turned ON switching enabled during high current operation for example during radio transmit or receive operations While the load is placed in a low power sleep state the converter switching is stopped by placing the device in bypass mode such that the quiescent current is minimized 30nA typ By default the converter is in bypass mode and may be controlled by the firmware port PO to enable switching Page 18 of 36 5 Development Kit User s Manual 3 2 8 3 2 9 Helease Date 1 16 2015 Jumpers Current Monitoring JP1 This jumper allows the board current to be measured with an external ammeter multi meter connected to J1 14 and J1 15 It is a surface mount resistor footprint 0603 with a trace connecting the two terminals For current measurements using an external meter the trace must be cut To return the board back to a functional state without the meter a zero Ohm resistor should be soldered across the JP1 terminals Optionally a jumper wire may be soldered across J1 pins 14 amp 15 Voltage Photodiode Select R5 This jumper selects whether port P15 on the A20737 module is connected to the onboard voltage divider or photodiode It is a 3 terminal footprint which accepts a 0603 resistor in one of two positions By default the voltage divider is connected to
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30. uired GPIO P4 SPI slave select for the onboard accelerometer Active low May also be used for peripheral UART hardware flow control CTS signal Note that using CTS will activate the accelerometer MISO output It is recommended to hold SPI SCLK low if using this pin for CTS May also be used as general purpose if SPI and PUART flow control not required GPIO P3 5 Development Kit User s Manual Page 23 of 36 Release Date 1 16 2015 his Schematic Signal Name Description A20737 module EEPROM write control 0 EEPROM is writeable P1 EEPROM PUART RTS 1 EEPROM is write protected May also be used for peripheral hardware flow control RTS signal not recommended Peripheral UART TxD output P32 PUART TX May also be used as general purpose if PUART functionality not required GPIO P32 Peripheral UART RxD input J2 14 P8 P33 PUART RX May also be used as general purpose I O if P8 PUART functionality not required GPIO 8 GPIO P33 J2 15 eee x UART Power Supply voltage output for powering external UART devices Max load X current of external devices should be limited to 25mA for all VDDIO pins e J3 USB 5V Interface Table 6 J3 Pinout Pin m ee Label Schematic Signal Name Description d GND Common Ground GND 5V output when the board is powered via USB May also be used as 5V input to power the board if there is no U
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