Infrared obstacle avoidance sensor 3-50cm adjustable proximity switch E18-D50NK

This is a set of transmitter and receiver in a photoelectric sensor. Detection distance can be adjusted according to requirements. The sensor has long detection distance, visible light interference is small, cheap, easy assembly and convenient use, can be widely used in robot obstacle avoidance, and other automation products pipeline piece.

Photoelectric sensor (photoelectric switch) NPN normally open
Model: E18-D50NK.

Technical parameters of photoelectric switch E18:
1, output current DC/SCR/ relay Control output:100mA/5V power supply
2, consumption of current DC<25mA
3, response time <2ms
4, pointing angle: less than or equal to 15 degrees, the effective distance of 3-50CM adjustable
5, detect objects: transparent or opaque body
6, working environment temperature: -25 ~+55 C
7, the standard test objects: 10000LX below the incandescent light 3000LX
8, shell material: plastic

Electrical characteristics:
U:5VDC
I:100mA
Sn:3-50CM

Size:

Diameter: 17MM
Sensor length: 45MM
Lead length: 45CM

Application case:

1,Automatic counting - for production line
2, multi-function reminder
3, maze robot

[note] for the protection operation reliability and long service life, please avoid the temperature outside the prescribed (outdoor) conditions, proximity sensor is installed on the water structure, if the cover is used, not to make the water and water-soluble cutting oil poured into, can better improve the reliability and the life. Please avoid in chemicals, especially the use of alkali, acid, nitric acid, sulfuric acid, Ming thermal climate etc..

Red: 4.5-5V power supply high level

Yellow: microcontroller, the output level of TTL to SCM

Green: connect GND 0V power low

Barrier free output high level, barrier output (yellow) level from high to low,There is a map on the back of the detection distance of potentiometer can be adjusted once the obstacle, adjust potentiometer (such as adjusting the maximum distance of 50cm) is within the effective distance (such as obstacles, 40cm 10cm obstacles) outputLow level, low level just to identify the microcontroller.

In the circuit design can be the output of the yellow line and pull resistance 10K to 5V, and then into the SCM detection, will be relatively stable, single chip detection can be achieved by external hardware interrupt INT0 INT1, etc.