DIY Balancing Robot

https://youtu.be/gXZksnmGH6o

Based on various designs that I have seen online.
Balancingwii firmware included
EZ-GUI android app to control robot via Bluetooth connection.
Thanks to "Mr Innovative" for his video where everything necessary to make it work is explained: https://www.youtube.com/watch?v=aUbBUd-hBLI&t=305s

Components:
- Arduino UNO
- 2 units DRV8825 drivers
- 2 NEMA17 stepper motor units
- MPU6050 Accelerometer
- HC-05 Bluetooth Module
- 3 units 3.7v 18650 batteries
- 2 units 100 microF capacitors
- Prototipe Board 70x30mm
- 14mm button switch
- Charging port
- 2 o-rings 95mm x 3.5mm
- M3, M2.5 and M2 screws