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6* HiLetgo Hall Effect KY-003 Magnetic Sensor Module
Description:
1. Non-Contact Switch
2. Hall Switch Integrated Circuit Using hall Effect Principle,
3. USES The Semiconductor Integrated Technology Manufacturing Magnetic Susceptibility of the Circuit,
4. It is by the Voltage Regulator, Hall Voltage Generator, Differential Amplifier, Schmidt Triggers, Temperature Compensation and the Open Collector Output Stage Circuit Composed of Magnetic Sensitive Sensor Circuit
5. Its Input For the Magnetic Induction Intensity, the Output is a Digital Voltage Signal
mff
Reviewed in the United States on June 9, 2024
3 of 6 sensors received were faulty, latching on pole swaps, as indicated elsewhere in the reviews. How it is possible to mess up a hall sensor, I don't know, nonetheless, be willing to accept high "dead on arrival" rate if ordering. **two stars vs *one, because half of them I received do work, and I only need one, and I expected the fails from reading reviews.
Michael Brumm
Reviewed in the United States on July 13, 2023
I bought a set of these sensors to find out if they would work for detecting operational cars in a model railroad. I knew from reviews that yield could be questionable, but I only needed one so that didn't concern me. The sensor turned out to work so well that I decided to replace the IR sensors I had been using on my test track to detect train positioning (too finicky, too many adjustments needed, too sensitive to light) with these. All six sensors I received performed as expected, worked reliably, and didn't require periodic adjustments -- definitely a 5-star experience. So I told my friend to order these for the room-sized rail yard we are building at his place.That's when we started experiencing what has been covered in several reviews. A good sensor works reliably, and once installed seemingly never has to be dealt with again. But a lot of them don't function as expected as they latch instead of only signaling when a magnet is over the sensor. I was concerned over whether a working sensor might become latching at some point, but I've yet to see a working sensor fail, even after I inadvertently reversed the +5v and -5v wires on one.Of the 72 my friend ordered only 21 worked as expected. From a second order of 60 only 16 performed as expected. That gives an overall yield of 28% on a sample of 132 parts. In my mind that's a one-star product, except that we've been able to get a refund on the bad parts without any problem so I figure it evens out to somewhere in the middle.Bottom line, if you don't mind ordering 3-4 times the number of sensors actually needed and are fine dealing with returns, I would highly recommend these sensors. Just be prepared to screen them before installation.
Customer
Reviewed in the United States on January 17, 2023
First order came and only 3 of the hall sensors worked. Sent back and they sent me 6 more. 5 of them worked.
My Reviews
Reviewed in the United States on August 25, 2022
This order contained 6 pieces of Hall Effect Magnetic Sensor boards. All 6 failed in that immediately upon 5 volts and GND being applied to the board the onboard LED would come on indicating that the S lead was low and testing proved that to be the case. All 6 boards contained 3144 sensors and upon replacing one of the failing board's 3144 with a new 3144 that I had purchased separately that board worked correctly in that no LED upon power being applied and a magnet in the vicinity of the new 3144 turned on the LED and the S lead went low as expected. A good guess based on the above failing board's 3144 being replaced would indicate that all 6 boards have a batch of bad 3144.Did not contact the seller or attempt to have them replaced them since I only needed 1 working board and it appears that repairs can be made with new 3144 as needed so not worth the effort.
John M
Reviewed in the United States on May 8, 2021
Installed this on an RC truck wheel with a magnet glued to inner rim. Read it into an Arduino Mega with a library code using I2C interface to get ground speed (wheel rotations). Worked like a charm!
Will Kellum
Reviewed in the United States on December 4, 2021
Not only did these work well, the electromagnetic concept they demonstrate is trippy
Carol B.
Reviewed in the United States on January 25, 2021
It was great the hall effect sensors are efficient and effective.
anwar
Reviewed in the United States on April 25, 2021
Works amazing. Use smaller magnets for more percision
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