I made a wagon with an electric motor to carry my things to the park and at music festivals. It has a 1000W brushless DC motor and a drive train for a go cart. It’s controlled by an ESP32 that is attached to a hand throttle on the handle for the wagon. This ESP32 also has a temperature sensor attached to the batteries in the wagon to make sure they don’t overheat. It controls a relay that powers another ESP32 that controls the Neopixels I’ve attached to the wagon using LED channels with a milky white diffuser.
It was a very fun project and I learned a lot about electricity, batteries and the pitfalls of aliexpress.
If you ever get a chance, a blog post about the build, software, and pitfalls would be awesome. I'm thinking about building something like this as our toddler gets older and we start to do longer day outings in a wagon.
It was a very fun project and I learned a lot about electricity, batteries and the pitfalls of aliexpress.