Arduino Code for controlling a bot via Bluetooth using bluetooth module hc-05 First we have to configure the Hc-05 module. To do that upload a blank code to the arduino with the bluetooth module ...

A simple flutter projet to connect arduino using bluetooth module. In this project you'll be to send simple caracters to bluetooth module (HC-06 or HC-05) or send caracters using voice command. But ...

These two practical Arduino projects show you how to control a relay from a smartphone using an Arduino Uno either over Bluetooth or over Wi-Fi via an ESP8266 -based ESP-01 module. Whether you are ...

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.