You can buy a small ESP32 microcontroller for a few dollars—less than a Starbucks coffee. When you combine it with a special LoRa radio, you can create a device that can send encrypted text messages ...
Build a DIY ESP32 LoRaWAN sensor node to track garden temperature and humidity from up to 600 meters away. Includes PCB design and Datacake setup.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results