Seems to work, but both the power led and signal out led are red, not green. is this a new revision or do i have something hooked up wrong?

Mine are red, too. And they work just fine. No, I don't think you have anything hooked up wrong.

I am looking for a sensor that can be hidden under a plastic surface, would this be able to detect though a sheet of acrylic?

Not sure about a clear sheet. I thought I had a piece and I would give it a try but I did not. I did have a sheet of anti-glare and it did set it off so that material clarity will definitely not work.

do this only do digital reading and not analog value?

Yes. Its only digital. There are similar devices with analog interfaces such as a QRE1113.

Any way to get a real spec sheet? the details on this page are incomplete and/or wrong.

I didn't find a real spec sheet

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HiLetgo 10pcs IR Infrared Obstacle Avoidance Sensor Module for Arduino Smart Car Robot 3-Wire Reflective Photoelectric for Arduino Smart Car Robot

HiLetgo 10pcs IR Infrared Obstacle Avoidance Sensor Module for Arduino Smart Car Robot 3-Wire Reflective Photoelectric for Arduino Smart Car Robot

Product ID: 151444445

⚡3.3V-5V wide voltage support

📏2-30cm detection range

🔧Adjustable detection distance

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Description

🤖 Navigate smarter, not harder — avoid obstacles like a pro!

COMPACT MOUNT READY - Slim 3.2cm x 1.4cm board with screw holes for effortless installation in any smart robot.
ROBUST STABLE OUTPUT - Equipped with LM393 comparator for consistent, noise-free digital signals.
PLUG PLAY COMPATIBILITY - Seamlessly integrates with Arduino and other microcontrollers via a simple 3-wire interface.
PRECISION INFRARED SENSING - Detect obstacles from 2 to 30cm with a sharp 35° angle for reliable navigation.
CUSTOMIZABLE DETECTION RANGE - Fine-tune sensitivity with an easy-turn potentiometer to match your project needs.

The HiLetgo 10pcs IR Infrared Obstacle Avoidance Sensor Module offers precise obstacle detection from 2 to 30cm with adjustable sensitivity, compatible with 3.3V-5V systems like Arduino. Featuring a stable LM393 comparator output and compact design with mounting holes, it’s ideal for smart car robots and line tracking projects, empowering makers to build smarter, more responsive robots.

Specifications

ASIN	B07W97H2WS
Best Sellers Rank	#48,113 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #18 in Photoelectric Sensors
Date First Available	August 9, 2019
Item Weight	5.3 ounces
Item model number	3-01-0063
Manufacturer	HiLetgo
Product Dimensions	7.87 x 7.87 x 5.91 inches

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Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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