Product description
* After connecting the power, if there is no signal, fixed a place to adjust the adjustable resistor, adjusted to the light, first to the right or left, adjusted to hear the potentiometer overshooting, in the opposite direction to adjust!
This is a photoelectric sensor that integrates transmission and reception. The detection distance can be adjusted according to requirements. The sensor has a long detection distance, little interference by visible light, inexpensive, easy to assemble, easy to use, etc., can be widely used in robot obstacle avoidance, ( but this infrared sensor probe is not suitable for use in the natural light lighting environment, because the natural light contains infrared, the need to use infrared probe friends please pay attention to this problem, used in the absence of infrared environment is still possible )
Assembly line counting and many other automation products.
Electrical Characteristics:
Pin Description: brown line is positive blue line is negative black line signal
Photoelectric sensor (photoelectric switch) NPN normally open Sensor LED is on
Technical parameters of photoelectric switch E18:.
1, output current DC/SCR/relay Control output: 100mA/5V power supply
4, pointing angle: ≤ 15 °, the effective distance of 3-80CM adjustable
5、Detecting objects: transparent or opaque body
6、Operating ambient temperature: -25℃~+55
7, the standard detection object: sunlight below 10000LX incandescent lamp below 3000LX
Answers to frequently asked questions about sensors:
1, Q: This is a digital sensor or analog sensor?
A: This is a digital sensor, NPN normally open photoelectric switch; output state is 0,1, that is, the digital circuit in the low level and high level, the normal state output high level, detected target output low level.
2, Q: can be connected to the microcontroller IO port?
A: Can be directly connected to the microcontroller IO port to use.
3、Q:What is the resistance value of the pull-up resistor?
A: Plus pull resistance is generally about 10K;
4, Q: Why is the indicator light always on after connecting the power supply?
A: First of all, to ensure that the power supply is a stable 5V ± 2%, and secondly, the probe output can not be connected to the microcontroller output port;
5, Q: Why is the indicator light always on after connecting the infrared switching power supply?
A: 1, please check the power supply has not been connected to the reverse, that is, the infrared output to the power supply is positive; 2, please check the direction of the probe to detect the range of obstacles, good for the direction of the open.
6, Q: instructions for use, the introduction is too simple?
A: This is a photoelectric switch, there are only three lines, power, ground, output, do not need too complex introduction.
7, Q: infrared obstacle avoidance sensor is not NPN