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MiniPill LoRa - STM32 Low Power Node

Posted: Sat Aug 08, 2020 3:16 pm
by Leo
Hello I'm an IoT developer who also tries to get students enthusiastic about IoT.
I would like to share my latest project, a LoRa node with stm32L051C8T6 controller and BME sensor running in Low Power.

Short list of features:
  • Arduino code is used, combined with STM32 HAL code;
  • It’s a generic development board, hence the name MiniPill, a wink to the BluePill board. Without the RFM95 chip it can be used for other projects;
  • The LMIC library is used for the LoRaWAN protocol with OTAA as connection setup instead of ABP;
  • Due to this library it is possible to downlink data to the node and get confirmation of the received data;
  • In Low Power Mode: 1.9 uA during sleep period;
  • With a BME280 sensor beside temperature and humidity also pressure can be measured and send through LoRaWAN;
  • Enough pins are available for other sensors or actuators;
  • Due to a 4 layer SMT print and SMT components the print is smaller but has an other form-factor. The size is 33.1 mm x 22.9 mm;
  • Pinouts are labeled and 4 VCC and GND connectors are available for external sensors.
Image

Please checkout this post on my blog: https://www.iot-lab.org/blog/370/.

Leo.

Re: MiniPill LoRa - STM32 Low Power Node

Posted: Sun Aug 09, 2020 10:15 am
by fpiSTM
Thanks for sharing. Nice project