For those looking to upgrade their kid’s ride, [David] has provided source code for the ESP32, a parts list, a wiring diagram ... look at the clever traction control system we saw added to ...

The 4 channel smart relay board is powered by a ESP32 WROOM providing the ability to safely control up to four appliances or devices on a load of 110-250 VAC/7A, 30 VDC/10A depending on your needs.