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.

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Arduino Nano 33 BLE Sense is a nano-sized board with Bluetooth connectivity and well equipped with sensors which include a 9-axis inertial measurement unit (IMU) which adds a compass to the usual ...

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 ...