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HW-201A Infrared Obstacle Avoidance Sensor Module (Active Low)

HW-201A Infrared Obstacle Avoidance Sensor Module (Active Low)

Part number: HW-201ABrand: ChinaDistance, Proximity & Motion Sensors

Lowest price now

25 EGP

5 offers · 5 storesSave up to 29%

View in store: Makers Electronics

Prices updated: 12 Oct 2026

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StorePriceView in store
Makers Electronics logoMakers ElectronicsCheapest25 EGPView in store
Most Electronics30 EGP37.91View in store
Microohm logoMicroohm30 EGP45View in store
Ekostra35 EGPView in store
ElectroHub35 EGPView in store

Price history

Lowest daily price, last 90 days

30.7527.524.2512 Oct 202613 Oct 2026

Lowest price recorded: 25 EGP

About this product

HW-201A infrared obstacle avoidance module with an LM393 comparator and an active-low digital output. It detects objects from 2 to 30 cm at a 35 degree angle and is widely used in obstacle-avoiding robot projects.

Specifications

Detection distance
2 – 30 cm
Detection angle
35°
Comparator chip
LM393
Output logic
Active Low
Mounting holes
3 mm screw holes

Frequently asked questions

What is the price of HW-201A Infrared Obstacle Avoidance Sensor Module (Active Low) in Egypt?

HW-201A Infrared Obstacle Avoidance Sensor Module (Active Low) currently costs between 25 and 35 EGP across 5 offers in Egypt.

Where can I buy HW-201A Infrared Obstacle Avoidance Sensor Module (Active Low) in Egypt?

HW-201A Infrared Obstacle Avoidance Sensor Module (Active Low) is available from Makers Electronics, Most Electronics, Microohm, Ekostra, and ElectroHub. Compare the offers above to find the best price.

How does the output behave when an obstacle is detected?

The output is active low, so the digital output pin goes LOW when an object is within the detection range and returns HIGH when the path is clear. Your code should treat LOW as an obstacle.

Can this module be used with an Arduino?

Yes. Connect its power pins to the board's power supply and ground, and read the digital output pin with a digital input. Check the module's labelled pins before wiring.