SunFounder 3in1 Kit
• 6. Plant Monitor (IoT Project)
1.27 Obstacle Avoidance Module
• VCC: Power supply, 3.3 ~ 5V DC.
• GND: Ground
• OUT: Signal pin, usually high level, and low level when an obstacle is detected.
The IR obstacle avoidance module has strong adaptability to environmental light, it has a pair of infrared transmitting
and receiving tubes.
The transmitting tube emits infrared frequency, when the detection direction encounters an obstacle, the infrared radi-
ation is received by the receiving tube, after the comparator circuit processing, the indicator will light up and output
low level signal.
The detection distance can be adjusted by potentiometer, the effective distance range 2-30cm.
Example
• 3.3 Detect the Obstacle (Basic Project)
• 5. Play with Obstacle Avoidance Module (Car Project)
1.27. Obstacle Avoidance Module 49
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