If you want to maintain detailed logs of the environmental parameters, you can host a database on your Raspberry Pi and ...

The DIY Walkie-Talkie circuit diagram ... which makes it useful for fire-and-forget traffic such as from IoT devices.

This job has gotten easier thanks to the iSpindel project; an ESP8266 based IoT device intended as a DIY alternative to a costly commercial solution. Tracking fermentation normally involves a ...