The Bluetooth module wants 3.3v logic levels so that is taken into account. The image above shows a buffer chip doing the conversion, but the Fritzing schematic on the post uses a voltage divider.

Connect the positive terminal of the 12V Li-ion battery to L298n motor driver module 12V input. Connect the negative terminal of the battery to GND of L298n motor driver module. When working with ...

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), ...

Designing an electronic safe using a servo motor, a Bluetooth module, and Arduino Uno allows remote access via smartphone, along with local access through the keypad or other input mechanisms. Connect ...

An Arduino mini pro provides the brains. A FT-232 USB to serial board is used to program the Arduino. A standard Bluetooth module has to have HID firmware installed.

The research introduces a cost-efficient voice-controlled home automation system based on products such as Arduino Uno and Bluetooth (HC-06) module. The main purpose of the system focuses on making ...