4 Channel IR Line Tracking Obstacle Avoidance Module

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Working voltage:DC 3.3V-5 v 
Working temperature: -10 ° C to + 50 ° C 
Mounting opening: m3 screw
Detection range: 1mm to 60cm adjustable, the closer the more stable performance, the white reflects the farthest distance. 
Output interface: 6 wire interface (signal output 1234 to 4, + positive power, -the negative power is 
ground.The output signal: TTL level (can be connected directly to I / 0 microcontroller, infrared light reflected again to the induction of the sensor, the red pilot light, low level output, without infrared light, the indicator light does not shine, the output high 

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