IoT Soil Moisture Sensor

Open source, low power, cost-effective, 10 years from 1 LiSOCl2 battery. LoRa communication channel. Supports 2 probes functionality for multi-depth sensoring.

Based on Microchip (Atmel) SAMD10 chip: ~1.5$, 32bit Cortex M0+

Features

  • LoRa communication
  • LiSOCl2 7.7A 26500 battery
  • RTC clock
  • 2 I2C SHTxx Senserion sensors
  • Battery self-measure

Schematics

PCB

PCB Renders