Tank

Github repository 

Remotely controlled inspection robot based on Raspberry Pi Zero.

The robot can be teleoperated using a web browser, it works quite well in rough terrain:

Construction started with PCB:

PCB with connected components

The PCB was supposed to control the following components:

• 2 motors with encoders
• 3 servos
• SPI communication with Raspberry
• battery voltage measurements
• 2 LEDs (indicating low battery voltage and “power on”)

Prototyping PCB

As a power source I used a LiPol battery that was connected to 2 voltage converters: one for the microcontroller and one for servos.

Parts of the construction were 3D printed using https://www.thingiverse.com/thing:652851

PCB

The robot was controlled through a web browser, I used https://hackaday.io/project/25092-zerobot-raspberry-pi-zero-fpv-robot/log/97988-the-new-zerobot-pro, modified to work with my SPI communication.