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.

HC-05 TX to Arduino Pin 10: This connects the transmit (TX) pin of the HC-05 Bluetooth module to pin 10 on the Arduino. Pin 10 is configured as the RX pin in the software serial port (BTSerial), ...

Circuit Diagram Below is the circuit schema of the car control system, including the Arduino, L298N motor driver, and HC-SR04 ultrasonic sensor. Note: The pin numbers in the diagram may differ from ...

I am using the l2C Protocol for Communication between the two Arduinos. For Arduino 1 (Master Arduino): The Temperature and Humidity Sensor is connected to pin 9. The Main Gate Servo, Tank Servo and ...

An Android* phone or tablet running Android and has Bluetooth. Connect your Intel® Edison board to a Wi-Fi* network, see Get started with Intel® Edison technology. Specified a name for your ...

Based on a Nordic Semiconductor 32-bit ARM system-on-chip that has built-in support for Bluetooth 4.0, the RFduino runs the same code as Arduino UNO and DUE boards, and it works with any type of ...