Incremental Rotary Encoder 600P/R

I'm using this in computer peripheral application, and it works as specified. I'm powering it with 8V using a boost converter from the 5V supplied by the USB bus, and it works fine on this supply. I haven't measured how much it draws.

Pretty decent encoders. If you want to use 5V directly they have provisions on the PCB. The regulator has a solder bridge between the input and output. Simply connect the bridge with a ball of solder or with a 0805 0 ohm resistor. Like wise on the back of the PCB there are two 0805 locations for pullup resistors. I used 10K and the output works great when connected to a DRO.

I usually don't write product reviews, but this encoder works and it works well. I used it with the hardware quadrature decoder on the Arduino Due and even at 1000 RPM, it does not skip a pulse. I bought the 600p/r version and was under the impression that it was total quadrature rising/falling edges, but it turned out to just be the rising/falling edges of a single phase. This means that the resolution is actually 2400 total rising and falling edges pulses per revolution.

Tried using this for an application but couldn't get unit to read consistently. Documentation didn't match what was seen on the internet. So it may had failed due to shorting of while wiring.

Product works fine but the specified 5v input is not correct. Product will not work at this voltage. I was able to make it work with a 12v supply.

If you are having problems using this at 5V, it's because there is a generic LM7805 as a regulator for the internal power supply. The regulator will be in drop out unless you give it around 7V. This should be rated for 7V-24V. They are not suitable for 5V operation. The outputs are also open collector so you will need pullups to your desired logic level to get signals out of these. Attached are some pictures of the nice internal construction and the quadrature output signal.

As others have said, this needs more than 5V for stability and has open collector outputs. If you rewire power to the output of the regulator instead of the input, and move the outputs to these handy through holes on one side, you'll get 0 to about 2.6 volts on the outputs, which works nicely with my microcontroller without pullups.

Be aware that this is a single channel encoder, not quadrature/two channel like the listing says. This is a rising and falling single channel (A+ and A-) encoder. Additionally, I had to re-wire the channel wires and bypass the voltage regulator to get a usable signal. See other Amazon reviews for how to wire it properly after you are fooled by the 4.5 star average review but want to complete your project (hopefully you don't need the B channel).