This project implements a remote temperature sensor with temperature and humidity data delivered over LoRa. Hardware (sensor/sender and receiver/display) costs around $30 USD. Data is sampled and sent every second from the sender device, and decoded and displayed on the receiver's display.

• 2 ESP32 boards with SX1276 LoRa radio, like this one
• SHT3XD sensor wired to the I2C bus, like this one. For the TTGO Lora v1 bored linked above, hook up SDA of the SHT3XD to pin 21, and SCL to pin 22.
• Optionally two 3D printed cases for the units, like these

1. Install PlatformIO.
2. pio run -t upload in the send and recv directories for each of the units, respectively.