[Reza’s] methodical investigation of this remote ... with an Arduino using a 433 MHz transmitter. This is a single-device unit, but the techniques used here should allow you to take control ...

The whole thing can run unattended, but uploads data on the brewing process for remote ... to monitor the progress and let you know when it is done. The Instructable even includes the Arduino ...

This video demonstrates how to set up a remote temperature monitoring system using an Arduino Uno R4 WiFi, an LM35 temperature sensor, and the MQTT protocol. The system captures ambient temperature ...