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The cars can also be controlled via bluetooth gamepads and is meant to be easily hackable.
Show HN: ESP32 RC Cars
github.com
When I have some time I'll try to combine them so I can control the car and see the camera feed on the display.
The basic software is very easy to start with, about 20 lines of C using a library for the Bluetooth controller. From there I've added features for easier control. Using two sticks for two tracks works at low speed, but the thing goes close to 20 km/h (I've used two drone motors for it) so then you need a different control method. I ended up with rpm limited direct track control using the "triggers" on the dual shock controller. And more intuitive left stick up/down for throttle, right stick left/right for steering for high speed operation. So now it drives like a normal RC car.
Video of the same 3d print model I used as a basis in action, you can see the speed best from 00:50 onwards: https://www.youtube.com/watch?v=3Mv_tDY89Zw
What is the approximate price of the car components?
We mounted a furby head in one of our robots at work and let it yell swear words at our management.
They (and we) love it.
That project was the source of many code snippets/patterns that have implemented in official products that earned a lot of money.
Cool! I've made an ESP32 powered RC tank on tracks, controlled with a PlayStation 4 controller over Bluetooth. The basic software is very easy to start with, about 20 lines of C using a library for the Bluetooth controller. From there I've added features for easier control. Using two sticks for two tracks works at low speed, but the thing goes close to 20 km/h (I've used two drone motors for it) so then you need a di…