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.

10. Automatic Irrigation System using an Arduino Uno: This Arduino UNO project details the creation of an Automatic Irrigation System using an Arduino Uno and a soil moisture sensor. The sensor ...

Applications: Automated lighting systems in homes or offices. Object detection for proximity alerts in warehouses or parking systems. Energy-saving systems that activate lights only when needed.

Code to control via network (via UDP protocol) a relay connected to an Arduino Uno, which mounts an ethernet shield. Here you can find the code and the connection scheme. **I tested the code with an ...

The author’s prototype is shown in Fig. 1 and circuit diagram of a rectifier using Arduino Uno is shown in Fig. 2. This circuit is built around Arduino Uno, centre-tap transformer X1, two diodes, a ...

RA4M1 microcontroller block diagram The new Arduino UNO R4 board also adds a CAN bus and a 12-bit analog DAC. Two versions of the new 32-bit Arduino UNO board will be offered: UNO R4 WiFi and UNO R4 ...