Main Content

Wireless solar-powered sensor node

A solar-powered node that stores energy in a supercapacitor, wakes-up regularly, measures different parameters, and sends them to a gateway

The main idea is to create a relatively small device that measures temperature and humidity (or anything else using a low-power i2c sensor), sends data to a gateway, and never requires a battery change. In the current iteration, I going to use an ATmega328P microcontroller, RFM69W transceiver, 1-1.5F supercapacitor, and some additional components to provide over/under voltage protection.”

Link to article