Bluetooth Motor Speed Control

HC-05 Bluetooth Module

Arduino Nano R3

TC4427 DIP8 IC, current buffer

The app controls 2 DC motors connected to pins 10 and 11 of the Arduino. The speed control is using PWM signal that vary digitally the voltage to the motor. The app sends to HC-05 2 bytes every 200mS, each byte represents the value of the slider, 0-127. The Arduino generates PWM that relates to the slider position. Comments in the code explain the detail operations. Software for Arduino and Android can be downloaded from GitHub: <a href="https://github.com/projects22/Bluetooth-motor-speed-control">https://github.com/projects22/Bluetooth-motor-speed-control </a>APK file for Android app needs to be transferred to the device and installed. The app is in Basic for Android (B4A) free program, the code is included.The 8 pins PDIP buffers is a mosfet driver. IC's that can be used are: TC4423, TC4424, TC4426, TC4427, MC33152, MC34152. These are very similar and pins are identical.

Bluetooth Motor Speed Control

Android app for controlling 2 DC motors over Bluetooth.