RTX41xx Wireless Sensor Application Board (WSAB) User Guide
Contents
1. SW3 Battervholder 2468 VD TP14 BAT 2xAAA 2 0V to 3 0V 3xAAA 3 0V to 4 5V BAT VDD_EFM Resitive sensor C21 PC4 PD4 lt AGND R24 fl PC3 SW2 1KO SKRELHEO10 c18 N M User keys TE 1KO I PD5 swi SKRELHEO10 c19 HE N M H4 a E PC2 SML 521MUW A a E User LED s RR 038 PF2 SML 521MUW 3D accelerometer compas IC3 LSM303DLHCTR PC5 PB11 RESERVED RESERVED RESERVED PFO DBG_SWCLK PF1 DBG_SWDIO R8 ORO when using 2xAAA batteries R8 N M when using 3xAAA batteries IC2 XC9131FOSCDR G IC5 RTX4100 2 IN PAO TIMO CCO I2C SDA PA1 TIMO CC1 I2C SCL CMU CLKi PA3 TIMO_CDTIO PC1 ACMPO CH1 PCNTO S1IN US1 RX PA4 TIMO_CDTI1 PCO ACMPO CHO PCNTO SOIN US1 TX PB7 LFXTAL_P US1_CLK PB8 LFXTAL_N US1_CS PB12 DACO_OUT1 LETIMOO_OUT1 PB13 HFXTAL_P LEUO_TX PB14 HFXTAL_N LEUO_RX SUPPLY_1 PC2 ACMPO_CH2 US2_TX SUPPLY_2 PC3 ACMPO CH3 US2 RX PC4 ACMPO_CH4 LETIMO_OUTO PCNT1_SOIN US2_CLK PD4 ADCO_CH4 LEU0_TX PC5 ACMPO_CH5 LETIMO_OUT1 PCNT1_S1IN US2_CS PB11 DACO_OUTO LETIMOO_OUTO PC6 ACMPO_CH6 LEU1_TX I2CO_SDA PC7 ACMPO_CH7 LEU1_RX I2CO_SCL PD5 ADCO_CH5 LEUO_RX PFO LETIMO OUTO DBG SWCLK PF1 LETIMO OUT1 DBG SWDIO PF2 ACMP1 O DBG SWO PAO PAL PA3 PC2. RTX41xx Wireless Sensor Application Board WSAB Variants covered by this document RTX4100 WSAB RTX4140 WSAB P os gt gt e XI Os O pu p aA User Guide WSAB UG6 User Guide Wi Fi Sensor Application Board WSAB RTX41xx Wi Fi Module 1 CONTENT 1 BACON CUO aos hice EE een cane ec ee A E E 3 ll General Description ad 3 1 2 Module variants covered by this document ccccccccssseccccceeseececceeeeeceeceesecceceseneecessauaeeeessueaeeeessaaaeeeeees 3 1 3 Document HIStory iii ea rarr aa ENS EE NAE ANE nadmaderneayenewiones 3 tA SWW Vers iOn eerca e E R 3 15 Document RE ENCES ma e i a i AE E A 3 2 SCE CS i E E E E E E E 4 3 WSAB BIOK DIJET aN ai ai aria i lil ia l AG 5 4 PAPC Wale LAVOU L sicecsccatinsssanisnnisaniiasaiastecesscnivassinnisonnianiinsivaghincetan ei invalidi Ta bina f kie ia 6 5 Power Supply sesessssssesecececsssesecececsesececececscsesecececsesesecececsesesecececsesesecececsesesececscsesesecececsesesesececseseseseseseese 7 5 1 Batey Powered eeren E ANE EE EEEE A EEANN EN 7 5 1 1 Low Voltage Power Supply Configuration Default configuration 2 cell cccccccsseeeecseceeeeeeseeees 7 5 1 2 Direct Power Supply Configuration 3 cell ss ses sssnennnnnnnnnnnzznnnnnznnnnnnnzznnenznnznnanzznnnnznznnnnzznna 7 s EAn POWE e E E E E E A AE E E EAE E 7 6 Antenna Coniieurati M irkiekel Ea 8 7 RIX41xx Module Connie tiotisi iii insinji ki ia ini a i
3. 5 1 GND VCci VCci Battery supply input VBAT VIO Used as Reference for resistive sensor Supply for MEMS Pull up for DBG_SWDIO I O PA3 PC1 US1 RX UART_RX signal used for eg CoLA application download and debugging via USB virtual COM port I O PA4 PCO USi TX UART TX signal used for eg CoLA application download and debugging via USB virtual COM port 1 2 3 5 6 10 11 12 GND GND GND _ _ _ gt O 13 I RESETn Unused S 16 ma 21 22 23 24 Enable signal for DC DC stepup used in 2 cell configuration see section 5 1 GND GND Input from push button SW1 I O PC6 LEU1_TX Low energy UART_TX signal used for terminal demo application via USB virtual COM port PC7 I O LEU1_RX Low energy UART_RX signal used for terminal demo application via USB virtual COM port DRDY for MEMS IC3 DBG_SWCLK advanced debug interface clock requires purchase of RTX2040 Unity II debugger DBG_SWDIO advanced debug interface data IO requires purchase of RTX2040 Unity II debugger User Guide Wi Fi Sensor Application Board WSAB RTX41xx Wi Fi Module 9 GND Unused 30 GND GND _ JGND 8 Expansion Debug connector The expansion connector with all RTX41xx IO s available can be used for adding customized application add on boards eg adding new sensor devices power supplies etc The connector also serves as the connection to the WS
4. 1 US1_RX PA4 PCO US1_TX PB7_X AGND PC4 PD4 VDD_EFM 3V5 TP15 gt 3V5 2xAAA batteries RI7 N M R18 0R0 3xAAA batteries R17 ORO R18 N M DD VDD_EFM Development interface signals TPS TP6 PA4 PCO US1_TX PA3 PC1 US1_RX TP8 TP12 PC6 LEU1_TX PC7 LEU1_RX TP7 TP11 PFO DBG_SWCLK PF1 DBG_SWDIO o zy d a l l l l l l l l l l l l l l l l l l l l l l l VDD_EFM l l l l l l l l ez TAI CAUTION This schematic contain versions To view the appropriate values Select Parts gt Ctrl A Rightclick gt Visibility Check Value Check Value Version Current version V1 2cell Must be changed seperately on each page PB13_X PB13 Optional HFXTAL PB14 PB14_X PB7_X PB7 E yo Optional LFXTAL PB8 PB8_X CAUTION Z100 Z101 PCB1 Fiducial Mark Fiducial Mark 81902713 PCB WSAB wireless sensor application board V3 Confidential Wifi Sensor Application Board ditta kd el IRRIPPK 11 Abbreviations The following abbreviations are used in this document API BSP CoLA GPIO MCU RTOS UART WEP Wi Fi WPA WPS User Guide Wi Fi Sensor Application Board WSAB Application Programming Interface Board Support Package Co Located Application General Purpose Input Output Micro Controller Unit Real Time Operating System Universal Asynchronous Receiver Transmitter Wired Equivalent Privacy Wireless F
5. AB Docking Station and the terminal cable supplied with the EVK see application development guide UG3 The below table shows the pinout of the expansion debug connector Mo Pe Module pin name WSAB function O RESETn See section 7 See section 7 See section 7 See section 7 See section 7 See section 7 See section 7 See section 7 See section 7 See section 7 See section 7 YO GND GND AGND Analog ground may be used as reference for RTX4100 analog I O s I O See section 7 14 1 0 PC4 PD4 Seessection 7 Z oo O Myo Pe Module pin name WSAB function PD5 PF2 PF1 PFO PC3 PC2 PC7 PC6 Power GND GND VDD_EFM VIO reference voltage 3V5 Step up voltage See section 7 See section 7 See section 7 See section 7 See section 7 See section 7 See section 7 VEXT Supplv input from WSAB Docking Station Set SW 3 in position EXT to use this supply for the WSAB 13 Power CC VBAT negative battery terminal User Guide Wi Fi Sensor Application Board WSAB RTX41xx Wi Fi Module 10 l l P A 14 Power _ VBAT positive battery terminal Only valid when WSAB is configured for 2 cell operation 2 cell operation is the default configuration 9 Current Profile Measurements The current sensing resistor R7 0 1 Ohm is placed in the ground path of the battery terminals This provides the option of characterizing the current profile of the application simply by using a
6. ABs based on both the RTX4100 and RTX4140 WiFi modules RTX4100 WSAB and RTX4140 WSAB 1 3 Document History Disclaimer This document can be subject to change without prior notice 1 4 SW HW Version This document is applicable for the following versions e WSAB version V3RA 1 5 Document References DS1 RTX4100_Datasheet_DS1 pdf DS2 RTX4140_Datasheet_DS2 pdf UG1 RTX4100_User_Guide_Module_Evaluation_UG1 pdf UG3 RIX4100 User Guide Application Development UG3 pdf UG7 RTX4100 User Guide WSAB Dock UG7 paf User Guide Wi Fi Sensor Application Board WSAB RTX41xx Wi Fi Module 3 2 Features The Wi Fi Sensor Application Board includes the following features e RTX41xx module The RIX41xx Wi Fi Module small form factor single stream 802 11b g n Wi Fi module with on board low power application processor e Two push buttons Two push buttons readable from RTX41xx pin Can be used for application user interface and development e Dual color LED Red Green LED controllable by RTX41xx pin Can be used for application user interface and development e External sensor solder points Connection point for external resistive transducer connected to RTX41xx ADC and analog comparator inputs Can be used for connection of light sensor photo diode NTC resistor etc e MEMS Micro Electro Machanical System 3 axis accelerometer and 3 axis compass Can be used to implement mechanical sensor and positionin
7. ed antenna and an option for external antennas on either a U fl coaxial connector or an edge connector The module is in its default configuration set to use the integrated antenna How to change the antenna configuration between internal and external antenna is described in the figure below A number of 2 4GHz WiFi antennas using the U FL connector are available from different vendors Mount 3 3 nH chip inductor 0402 Murata Mount 0 ohm resistor size 0402 in above LQG15HS3N3S02x in above marked marked position to enable U FL antenna position to enable the internal antenna connector This is the default configuration of the module hardware U FL connector tvpe Manufacturer Amphenol Order number A 1JB External antenna Edge connector emptv RTX4100 EC Mount O ohm resistor size 0402 in above marked position to enable the external edge connector User Guide Wi Fi Sensor Application Board WSAB RTX41xx Wi Fi Module 8 7 RTX41xx Module Connections The table below shows the RTX4100 module pin connections on the WSAB and their intended function All module pins except pin29 are available on the expansion connector see section 8 For additional information please see the RTX4100 and RTX4140 datasheets reference DS1 and DS2 Module Type Module WSAB function Pin no pin name yo I O VCC2 VCC2 Supplied by 3V5 output from DC DC stepup 2 cell Can be supplied from VBAT 3 cell See section
8. g applications e 2x14 pin expansion debug connector Expansion connector with all RTX41xx IO s available except pin 29 for adding customized application add on boards Can be used for adding new sensor devices power supplies etc The connector also serves as a connection to the USB controller cable used by the EVK see reference UG1 The connector also enables the WSAB to be placed in the WSAB Docking Station enabling a full development environment see reference UG7 e Power supply The power supply supports multible battery options as well as a lab supply for development e Current sensing resistor A resistor in the ground path of the external power supply enables characterization of the current profile of the application simply using an oscilloscope e Small form factor 25x53mm 25x59mm including RTX4100 module User Guide Wi Fi Sensor Application Board WSAB RTX41xx Wi Fi Module 4 3 WSAB Block Diagram MEMS 3 axis accelerometer and 3 axis compas External sensor solderpoints Current sense resistor Option for external U fl antenna RTX41xx module Option for external antenna via edge connector Expansion debug connector Push buttons Red Green LED DC DC step up for 2 cell Switch to select between battery power or external power via the expansion connector O Q Battery terminals Power supply Battery pack or lab supply Figur 1 WSAB blockd
9. iagram see section 6 for alternative antenna options User Guide Wi Fi Sensor Application Board WSAB RTX41xx Wi Fi Module 5 4 Hardware Layout The layout of the WSAB is shown below See detailed component placing and schematics in chapter O g y more ee RTX41xx module Expansion debug connector Seegeeeceeeeeeeeee e s nhe Kadi 7 Bull 1 PS A BAA r Www Ww Oe amp TAT IB and 3 axis compas MEMS Two push buttons 3 axis accelerometer ae l External sensor solderpoints LED Red Green Current sense uF E DC DC stepup for 2 cell operation resistor Battery terminals and supply selection switch User Guide Wi Fi Sensor Application Board WSAB RTX41xx Wi Fi Module 6 5 Power Supply The board supports battery power or external power The two sources are selected by a switch SW3 see component drawing in section 10 In all power supply configurations the operating voltage requirements stated in the RTX4100 module datasheet must be respected see DS1 5 1 Battery Powered With SW3 set to BAT the battery terminals BAT and BAT supplies the board from the batteries inserted in the battery compartment BAT is the positive supply connection and BAT is the negative supply connection The board can be configured in two power supply configurations which are described in the following two sections The WSAB is delivered in low v
10. idelity Wi Fi Protected Access Wi Fi Protected Setup 15 RTX41xx Wi Fi Module 12 Liability Disclaimer General This document and the information contained is property of RTX A S Denmark Unauthorized copying is not allowed The information in this document is believed to be correct at the time of writing RTX A S reserves the right at any time to change said content circuitry and specifications Information contained in this document is subject to change without notice RTX makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose RTX shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishings performance or use of this material Warranty This product is warranted against defects in material and Workman ship for a period of one year from date of shipment During the warranty period RTX will at its option either repair or replace products which prove to be defective For warranty service or repair this product must be returned to a service facility designated by RTX Buyer shall prepay shipping charges to RTX and RTX shall pay shipping charges duties and taxes for products returned to RTX from another country RTX warrants that its software and firmware designated by RIX for use with a module will execute its programming instructions when prope
11. n oscilloscope Measurements can be done between J2 solder points using a 1x probe Connect the probe ground to the square pad of J2 and the probe tip to the round pad of J2 A momentary current of 100mA will translate to 10mV on the oscilloscope Therefore the signal should be inverted in the oscilloscope channel setup The measurements can be used to profile or watch the active current consumption when developing and testing applications Due to the low value of the resistor the measurements are only valid in active states with Wi Fi activity Sleep currents are too low to measure using the current sensing resistor and should be done by other means User Guide Wi Fi Sensor Application Board WSAB RTX41xx Wi Fi Module 11 10 Board Documentation User Guide Wi Fi Sensor Application Board WSAB RTX41xx Wi Fi Module 12
12. oltage power supply configuration also refered to as 2 cell 5 1 1 Low Voltage Power Supply Configuration Default configuration 2 cell The low voltage power supply configuration supplies parts of the internal module directly VCC1 from the battery and other parts from the DC DC step up converter VCC2 implemented on the WSAB The minimum input voltage in this configuration is 2 1V Recommended battery configurations include but are not limited to e 2x AAA alkaline Vaom 2xX1 5V e 2x AA alkaline Vhom 2X1 5V 5 1 2 Direct Power Supply Configuration 3 cell In the direct power supply configuration the battery terminals are supplying the module directly on both module supplies VCC1 and VCC2 Recommended battery configurations include but are not limited to e 3x AAA alkaline Vnom 3Xx1 5V e 3x AA alkaline Vagm 3X1 5V e 1x Li ion rechargeable batteries V gt m 3 7V To use the direct power supply configuration the following modifications are needed e Un mount R8 e Move zero ohm size 0402 resistor from position R18 to R17 see component drawing in in section 10 5 2 External Power With SW3 set to EXT the board is supplied from the Expansion connector this setting Should be used when the board should be powered from the WSAB Docking Station see reference LUG7 User Guide Wi Fi Sensor Application Board WSAB RTX41xx Wi Fi Module 7 l l P A 6 Antenna Configuration The RIX4100 module has an integrat
13. rly installed on that instrument RTX does not warrant that the operation of the product or firmware will be uninterrupted or error free Limitation of Warranty The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer Buyer supplied software or interfacing unauthorized modification Or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance NO OTHER WARRANTY IS EXPRESSED OR IMPLIED RTX SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE User Guide Wi Fi Sensor Application Board WSAB RTX41xx Wi Fi Module 16
14. sl ai 9 8 Expansion Debug connector sssssssssssssssosssossesssesosseosesosesosssosssossecosesssssosesosssossscsssessssosesosesosseosseosseee 10 9 Current Profile Measuremen ts coccssccsiteessenccesscccatsnecansconssonccsnccusstccasanccenncosscessdanedesetenatensssnnceesteoetsneuenniess 11 10 Boara DOCUMENTATION iii ai a g pariri tar ENSURE raisi 12 ll PRD DFO VIAUI ONS iii iii pr de iba id in a isba 15 12 Liability Disclaimer esesessesesesececscsesesecesscsesecececscsesesecececsesesecececsesesecececsesesecececsesesesececsesesesececeesesececeee 16 User Guide Wi Fi Sensor Application Board WSAB RTX41xx Wi Fi Module 2 1 Introduction 1 1 General Description The RTX41xx RTX4100 or RTX4140 Wi Fi Module is a small form factor single stream 802 11b g n Wi Fi module with on board low power application processor It is targeted at applications that send infrequent data packets over the network Typically 802 11 applications addressed by a RTIX41xx module will place a priority on low power consumption ease of development and system integration This document serves as a manual for the Wi Fi Sensor Application Board WSAB The WSAB is as a carrier board for the RTX41xx module to enable the user with a hardware platform for evaluation application software development and rapid application hardware prototyping 1 2 Module variants covered by this document This document covers Wireless Sensor Application Boards WS
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