If the resistance on the controller is too large, our signal may not be recognized. 2. The IO of the single-chip microcomputer needs a certain drive current. You can try to change the resistance to 1K or 2K.
If the resistance on the controller is too large, our signal may not be recognized. 2. The IO of the single chip microcomputer needs a certain driving current. You can try to reduce the resistance, 1K or 2K resistance
If the resistance on his controller is too large, our signal may not be recognized. 2. The IO of the MCU needs a certain driving current, and you can try to change the resistance a little smaller, 1k or 2k.