Small Rubik's cube robot based on ESP32

andrea.favero71
Posts: 1
Joined: Mon Apr 18, 2022 9:24 am

Small Rubik's cube robot based on ESP32

Postby andrea.favero71 » Mon Apr 18, 2022 10:55 am

Hi,
this is my second Rubik's cube solver robot project, and I set myself some clear targets: I wanted to make it very small, simple, 3D printed and especially inexpensive.

I used an ESP32 dev board, coded in Micropython, mainly to drive the servos and to communicate with a GUI located on a PC; Reason to chose this board has to do with budget and the idea to later add an ESP32-CAM board, to automate the cube status detection.

Thanks to forums (forums are amazing !), I've figured out how to use the UART communication via the same micro-usb port used to energize the robot; I've then removed the USB-UART converter, and obtained a much neat wiring.
Servos are driven directly by the ESP32 dev board (added a couple of capacitors to the 3v3 and 5v, to prevent voltage drops at servos start): A USB 2.0 from an old laptop is more than sufficient to keep everything running smooth.

I still figure myself as a principiant coder; My code is for sure highly inefficient, but the board is extremely fast compared to the (slow) robot, and the whole system works well :D


Image Image


If you'd like to see the robot working: https://youtu.be/ZVbVmCKwYnQ
If you'd like to know more, or build one yourself (all files availabe: 3D files, code, instructions, etc): https://www.instructables.com/CUBOTino- ... nsive-Rub/

If you have questions, or tips, please let me know ;)

rpiloverbd
Posts: 101
Joined: Tue Mar 22, 2022 5:23 am

Re: Small Rubik's cube robot based on ESP32

Postby rpiloverbd » Tue Apr 19, 2022 11:24 am

Great!Thanks for sharing with us.

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