This project is bluetooth controlled tank. This model contains two stepper motors with motor drivers, 36V LiPo battery with charger, Arduino Nano, HC-05 bluetooth module. This device is controlled from Android mobile phone. App has been written on JAVA. Mobile phone sends command to the device via Bluethooth.
My board has DC/DC converter - it is used for creating 5V from 36V. Arduino Nano with FreeRTOS and Bluetooth module HC-05.I don't like Arduino lDE and libraries, So firmware for Arduino has been written in Atmel Studio 7 and flashed to MCU by xLoader.
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Next part is stepper motor driver. It has 3 sygnal for conntrol from MCU - Step, Dir, En. Each input is optoisolated.
Finished device - top view:
App for Android:
This is a companion discussion topic for the original entry at https://community.robotshop.com/robots/show/bluetooth-controlled-tank