LoRa - STM32WL Dev Kit Schematic (Rev B)
Hardware schematic for the Olimex LoRa-STM32WL DevKit Rev B, featuring a BB-STM32WL module, BME280 and IIS2MDC sensors, and an integrated CMSIS-DAP debugger.
Overview
This document provides the detailed hardware schematic for the LoRa-STM32WL DevKit Revision B by Olimex Ltd. The design is centered on the BB-STM32WL module for LoRa connectivity. Integrated environmental sensors include the Bosch BME280 for temperature, humidity, and pressure, and the STMicroelectronics IIS2MDC magnetometer. The board includes a built-in CMSIS-DAP debugger based on the STMicroelectronics STM32L052K8Ux microcontroller, accessible via a USB-DEBUG port. Power management is implemented with a MicrOne ME6210 voltage regulator and includes battery support via a dedicated connector and WPM2015 P-MOSFET circuitry.
Use Cases
- LoRaWAN node prototyping
- Environmental monitoring and sensing
- Low-power wide-area network (LPWAN) development
- Industrial IoT sensor design
- Embedded system debugging via CMSIS-DAP
Topics
Referenced Parts
BME280
Bosch Sensortec
U4 BME280
BB-STM32WL
Olimex Ltd
MOD1 BB-STM32WL
IIS2MDC
STMicroelectronics
U3 IIS2MDC
STM32L052K8Ux
STMicroelectronics
U2 STM32L052K8Ux
ME6210
MicrOne
U1 ME6210-SOT89
WPM2015
Willsemi
FET1 WPM2015
T1107A
Generic
SW2 T1107A(6x3,8x2,5MM)
BH10S
Olimex Ltd
UEXT1 BH10S
| 1N5819 | Stmicroelectronics | D1 1N5819 |
| BME280 | Bosch Sensortec | U4 BME280 |
| BB-STM32WL | Olimex Ltd | MOD1 BB-STM32WL |
| IIS2MDC | STMicroelectronics | U3 IIS2MDC |
| STM32L052K8Ux | STMicroelectronics | U2 STM32L052K8Ux |
| ME6210 | MicrOne | U1 ME6210-SOT89 |
| WPM2015 | Willsemi | FET1 WPM2015 |
| T1107A | Generic | SW2 T1107A(6x3,8x2,5MM) |
| BH10S | Olimex Ltd | UEXT1 BH10S |