Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — either via Bluetooth or Wi-Fi.

Use Arduino to handle sensor input and relay control. Pi runs a Python Flask server with a simple UI to toggle GPIO pins via serial commands sent to the Arduino. Use cron jobs on Linux to schedule ...

The Nano 33 BLE Sense (Rev2 in photo) has the same 9-axis swap for Revision 2, and some changes in its other sensors: The microphone was a MP34DT05 (ST) and is now a MP34DT06JTR (ST) in rev 2. Gesture ...