There is really nothing to write about the assembly of McQueen, because it is too easy. Install the wheels, plug in the ultrasonic sensor, and finally connect the battery box. McQueen uses 3 AAA batte...
[i=s]This post was last edited by cruelfox on 2019-1-13 19:27[/i] Still using the online IDE, I added a BLE Characteristic module to the project I had already experimented with, and connected the acce...
This voltage stabilizer has no contacts, the voltage adjustment is accurate and fast, and the applicable range is very wide: AC150V~AC300V.Principle: The mains electricity enters the full-bridge recti...