Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — ...

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 ...

Connect Rx (pin 2) directly to TXD of the HC-05. Since pin 3 cannot be connected to RXD (as the HC-05 expects 3.3V logic levels), a potential divider with 1k and 2k resistors is used to connect RXD to ...

This connects the receive (RX) pin of the HC-05 Bluetooth module to pin 11 on the Arduino. Pin 11 is configured as the TX pin in the software serial port (BTSerial), meaning it will send data to the ...

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 ...

Power and program the Arduino with the 'BlueTooth_Test_04.ino' script using the Arduino IDE On the Raspberry, copy the file 'BT_06.py'. In command line, execute the file ' BT_06.py ' : python3 ...

The watch is built around an Arduino Pro Mini, a scavenged Nokia LCD, and a BlueSMiRF Gold. The Bluetooth connects to a Nokia N900 with a little Bluetooth client app [Ahmet] wrote.

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 ...