The Obstacle Detector sensor module is perfectly adaptable to the environment light, IR Object Avoidance Sensor has a pair of infrared transmitting and receiving tubes; transmitting tube emits infrared in a certain frequency, when detecting direction meets with obstacles(reflecting surface), reflected infrared will be received by the receiving tube; after the comparator circuit processing, the green indicator will light up, at the same time signal output interface to output digital signal(1 low-level signal). Users can adjust the detection distance through the potentiometer knob, effective distance range 2~30cm and working voltage is 3.3V to 5V. The Obstacle Avoidance module LM393 can be widely used in robot obstacle avoidance, obstacle avoidance car, line count, black and white line tracking, and so on many occasions.

• Voltages are DC 3.3V (do not use 5V supply).
• Its operating current is 13 to 26mA.
• Its Idle current is 10 to 13mA.
• Its sleep current is <80uA.
• Its peak current is <30mA.

The PIR Motion Sensor Detector Module HC-SR501 allows you to sense motion. It is almost always used to detect the motion of a human body within the sensor’s range. It is often referred to using “PIR”, “Pyroelectric”, “Passive Infrared” and “IR Motion” sensor. The module has an onboard pyroelectric sensor, conditioning circuitry, and a dome-shaped Fresnel lens. It has a delay time adjustment Potentiometer and sensitivity adjustment Potentiometer. Repeat Trigger Selection solderable Jumper is also available.

5 Channel TCRT5000 IR Array Tracking Sensor Module is a sensor board designed for use with line follower robots. This IR sensor module has been sufficient to meet the frequent task of tracking, but also with the infrared distance sensor and touch detection sensor. This TCR T5000 array unique makes your robot design able to adapt to the situation easily. It is specifically designed as a black line especially suitable for the complex of the black and white line, cross black and white line detection. This high-quality sensor module has 6 roads high sensitivity infrared sensor (5 escapes patrol, 1 road), to the recognition of black and white line accurately.