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Reviewed in the United States on December 14, 2024
I could have got this cheaper on an electronics site but had quicker and free shipping on prime.
tinker
Reviewed in the United States on April 19, 2024
Ours worked to about 30", but with less tolerance for misalignment at that distance.
Jah Gillz
Reviewed in the United States on November 9, 2022
My cat can now jump up to the bathroom sink, blocking the ir beam to trigger her own water fountain. She also likes BBQ and wild fish. Not spoiled at all.
Donald J. Lacey
Reviewed in the United States on December 25, 2020
Handy matched pair I used with Arduino to sense candy delivery in auto dispenser.
Guy
Reviewed in the United Kingdom on February 1, 2018
Installed the pair 35cm apart with separate 5V supply and 10k resistor for the pull-up on the control line. Signal is read with an Arduino Uno.But the behaviour is intermittent. Bought another pair, same thing.With nothing blocking the beam it produced a HIGH output as it should, then LOW when blocked. But over a few minutes with nothing blocking it, it would go LOW and stay there for a while then start working normally again. Seemingly it works, or doesn't, randomly.I stripped out all the wiring so it goes direct to the bread board now, tried it with a physical 10k pull-up and then with a software configured pull-up on the Arduino input. Same story.At one point, waving my hand **behind** the transmitter in a certain place would reliably send the signal LOW (blocked).For some reason I had assumed this was using pulsed IR e.g. at 38 kHz. If it is then it's just a bit useless. If it's not then maybe I'm just getting ambient IR interference. Either way I can't use it.
Jesus A. Perez
Reviewed in the United States on December 10, 2016
I used the emiting component to repair a Samsung Frenchdoor refrigerator's icemaker. Samsung does not sell this part separately so hey want tou to buy the whole auger. A little bit of research pointed me to this product and the fixing cost was 1/10th of the whole auger element. It's been 2 months since I repaired it and it's still running fine!
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