microbit vision webapp step 5: phone guided microbit car
https://ferryzhou.github.io/nezha-ble/hands-ble/index.htm
https://github.com/ferryzhou/nezha-ble/tree/main/hands-ble
https://makecode.microbit.org/S41681-69957-52890-33070
turn the car to face toward hand
Son assembled car with nezha kit, I wrote code
if hand is on the right side of the image, turn right. and turn left if hand is on the left side.
tested and works!
one caveat is to enable / disable selfie mode.
another issue is cannot chose back camera.
the following article seems have solutions
https://www.twilio.com/en-us/blog/choosing-cameras-javascript-mediadevices-api-html