Lamprey Absolute Rotary Encoder-Hollow Bore, 10-bit, Analog/UART/PWM

Grrr. It’s natural to mount the flat side against a metal surface…unfortunately the cable pins are exposed on that side and short the encoder unless a spacer or insulated is added. Not a good design feature. Nothing in the information warns against this.Caution… the output mode can switch from 3.3 v to 5 v with just a finger touch on exposed cable pins either while holding the chip or touching a cable breakout pin. This is very disconcerting since I’m connecting to a 3.3 volt chip

This encoder is extremely easy to use. The analog output makes it perfect to work with an Arduino Uno. I had it up and running in no time. My only complaint is that pitch of the connector is not 2.54mm, which made it harder to wire in my case. Overall I have been happy with it, and I just ordered a second one.

The sensors seem to be really noisy. In the attached picture I am not rotating at all. I am just in a static position, but still you can see that the readings are jumping around. Any ideas or suggrestions on how to get rid of this noise?

We used these on our swerve drives in 2020. While they never made it to competition due to the coronavirus, our testing with them suggested that they were accurate and reliable. They were pretty easy to incorporate into a swerve design and it enabled some nice design improvements, such as having a non-one-to-one ratio between the turning gear box and the module.A couple of minor gripes:-You have to cut a pair of the wires in the cable between the encoder and the electronics that it is connected to (a speed controller, roboRio, etc.). The cable is already on the wimpy side, and putting a couple of cuts in it makes it even worse. You need to be very careful with this and then protect the cable further with heat shrink, etc.-To calibrate this, you need to turn it through 360 degrees, in place on your mechanism. This works fine for some things like a swerve drive, but not for something like an arm that physically can’t turn a full circle. You really can’t use this device for that kind of mechanism.-The maximum distance between the sensor and the magnet is 1/2”. It would open up some nice design possibilities if that could be extended to about an inch. That might not be possible, though, given the nature of magnetic fields.

Product works well, and the instructions are clear. Easy to setup and use. Documentation for product specifications is lacking, however. (I was not able to find a datasheet on the company's website).-----------------Edit-----------------------------I contacted the company/person who makes these encoders, and he was incredibly helpful. Changed my review to 5 stars.