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Lesson 23 Infrared 38KHz obstacle avoidance module
Overview
Non logic chip oscillation frequency regulation 38KHz detection circuit. This infrared 38KHZ
obstacle avoidance module can completely block the traditional photoelectric obstacle
detection distance and a single normally open or normally closed signal output function.
Component Required:
(1) x Elego Uno R3
(1) x USB cable
(1) x Obstacle avoidance module
(x) x F-M wires
Component Introduction
Obstacle avoidance module:
Specifications
Working voltage: DC 3.3V-5V
Working current: ≥ 20mA
Operating temperature: -10 ℃ - +50 ℃
detection distance :2-40cm
IO Interface: 4-wire interfaces (- / + / S / EN)
Output signal: TTL level (low level there is an obstacle, no obstacle high)
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