Teyleten Robot IR Infrared Slotted Optical Optocoupler Module Speed Measuring Sensor 3.3V to 5V Photo Interrupter Sensor for Arduino(5pcs)
- use: 1. +5 +5 is the positive input port of the power supply, which can be connected to a voltage of 3.3V~5V.
- 2. GND GND is the negative input port of the power supply. OUT OUT is the signal output port, which is connected to the I/O port of the single-chip....
- For other main control boards or higher-level main control boards (such as Arm), if you need to set the I/O port to input/output mode, you must set it....
- Note: For Arduino players should set the MCU's I/O port to input mode/receive mode, otherwise it cannot be used..