Adjustable Infrared Reflectance Sensor Switch photoelectric detect sensor

DESCRIPTION:
 
 1. Working voltage: 5 VDC.
2. Working current: 10-15 mA.
3. Drive current: 100 mA.
4. Induction distance: 3-50 cm.
5. Size: 17 x 45 mm.
Connection: red take 5 V. green meet GND. yellow line output.
 Through the sensors to adjust the knob on the back. induction distance for induction distance 3-80 cm.
 In induction range. no obstacle yellow line output 5 V. with an obstacle yellow line 0 V. (the power supply voltage stability)
 In the circuit design can be in the output and the yellow line. resistance to 10 K 5 V. again.
 chip will test access is stable and the single-chip microcomputer testing can use external hardware interrupt INT0 INT1 to achieve.