I was asked to transform an old device into a connected device, to follow the usage of the device. As the device will be placed in a lot of environments and is battery powered, I chose to use the Sigfox network (see coverage).
Sigfox is an IoT network, that began in France but is now available in a lot of countries. It is based on an ATtiny2313A and the Wisol SFM10R1 on a breakout board (BRKWS01).