DN0035 Design note G-Module Motherboard Designs from our labs describe tested circuit designs from ST labs which provide optimized solutions for specific applications. For more information or support, visit www.st.com By Sergio Rossi Main components BlueNRG-MS CSP Bluetooth Low Energy Network Processor BALF-NRG-01D3 50 Ω nominal input / conjugate match balun to BlueNRG STM32F411CEY High-performance, ARM Cortex-M4 core with DSP and FPU LSM6DS3 iNEMO inertial module: 3D accelerometer and 3D gyroscope LIS3MDLTR Ultra low-power, high performance 3-axis magnetometer UVIS25 Digital UV Index sensor: 0 - 15 UV Index output range LPS25HBTR MEMS pressure sensor: 260-1260 hPa absolute digital output LD39115J25R 150 mA low quiescent current low noise voltage regulator STC4054GR Li-Ion Battery charger with thermal regulation Specification USB or battery powered MEMS module G-Module, 13.5 mm x 13.5 mm size G-Module Motherboard, 30mm x 15 mm size Circuit description The G-Module Motherboard was designed to use with the G-Module in place of the Gmodule Cradle in order to reduce space and maintain the cradle board’s functionality and capability (see Figure 1). The G-Module motherboard’s reduced dimension (see Figure 2) allows using it inside a small housing for wearable applications. December 2015 DN0035 Rev 1 1/9 www.st.com The G-Module is soldered onto the Motherboard instead the cradle board, so it can be easily removed (i.e. socket approach). Figure 1. G-Module Cradle Figure 2. G-Module Motherboard December 2015 DN0035 Rev 1 2/9 www.st.com Figure 3. G-Module Motherboard circuit diagram December 2015 DN0035 Rev 1 3/9 www.st.com Functional Overview, Top and Bottom side Figure 4. G-Motherboard Top side Figure 5. G-Motherboard Bottom side December 2015 DN0035 Rev 1 4/9 www.st.com G-Module Motherboard programming guide To program the G-Motherboard, it is necessary to have the followings hardware: 1. ST Link/V2 2. JTAG to SWD adapter (i.e. Olimex ARM-JATG-20-10) 3. SWD cable 4. Micro USB cable. (To connect the G-Motherboard to the PC) 5. Mini USB cable. (To connect STLink/V2 to the PC) Figure 6. G-Module Programming December 2015 DN0035 Rev 1 5/9 www.st.com To program the G-Motherboard, it is recommended to use the following software: STSW-LINK004 “STM32 ST-LINK utility” Use this software to program the G-Module Motherboard if you already have the .bin or .hex file available Software Development Kit (Atollic TrueSTUDIO, IAR Embedded Workbench and SystemWorkbench for STM32) Use this solution if you have the source and/or the full project code December 2015 DN0035 Rev 1 6/9 www.st.com Bill of Material NAME Manufacturer P/N Device Package D1 STMicroelectronics BAT60JFILM SOD323 U2 STMicroelectronics STC4054GR SOT23-5L U1 STMicroelectronics G-Module Custom module CONN HEADER 10POS N/A U9 FCI 20021111-00010T4LF UNSHD VERT T/H C1 Johanson Dielectrics Inc. 160R07Y104ZV4T CAP CER 0.1UF 16V Y5V R2 Panasonic Electronic L1 L2 USB1 U11 Ext Battery December 2015 0402 RES SMD 22K OHM 5% 1/5W Components ERJ-PA2J223X R1, R3 0402 Panasonic Electronic Components ERJ-2GEJ471X Panasonic Electronic Components LNJ447W84RA1 Panasonic Electronic Components LNJ347W83RA RES SMD 470 OHM 5% 1/10W LED AMBER RECTANGLE LED GREEN RECTANGLE 0402 0402 0402 Global Connector Technology USB3075-30-A USB3075-30-A MICRO USB, N/A 2.0 TYPE B, RECETPACLE, SMT EAO 09.03201.02 EAO 09.03201.02 SWITCH, SLIDE, SPDT-CO, 500mA, THOUGH HOLE ICP501421PS Battery Packs 3.7V 115mAh DN0035 Rev 1 N/A 22.5 x 14.1 x 5.2mm 7/9 www.st.com Support material Related design support material Product/ system Evaluation board (G-Module, Programming Cradle and SWD to JTAG adapter) Software Development Kit (containing examples and source code for Atollic TrueSTUDIO, IAR Embedded Workbench and SystemWorkbench for STM32) Gerber files (on request Eagle file can be provided) PCB layout, bill of materials and schematics files Documentation Design Note: G-Module An Inertial and Environmental Sensor Module for IoT Revision history Date 23-Jan-2015 December 2015 Version 1 Changes Initial release DN0035 Rev 1 8/9 www.st.com IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST f or such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2014 STMicroelectronics – All rights reserved December 2015 DN0035 Rev 1 9/9 www.st.com