Arduino graph using android app

Updated: Jul 2, 2021

Here is simplest component used and good accuracy for Signal Graph, Voltage and current measured reading value (DC) by using Android Application. In this project Bluetooth is used for serial communication, HC-05 is a Bluetooth device used for wireless communication with Bluetooth enabled devices (like smartphone). It communicates with arduino using serial communication.

Circuit diagram:

Component Required:

Arduino UNO: 1 no

Bluetooth HC-05: 1 no

Potentiometer (Linear): 47K- 1 no