I’ve been fighting with this for the past week, hope someone can help. We started to use E4T on the FTC robot this year, connect them to the REV Expansion Hub through 3.3v to 5v Level Shifter. We have 3 of them, left, right and horizontal. One of three kept having problems, it would work for a while (say 30 minutes), then suddenly stopped working, always 0 counts. If I tried a different E4T on the same cable, I got counts. I let it sit over night, it may work again next day for a while, and then stopped again. I swapped out the encoder to a brand new one, it worked for a while, then same thing happened. Eventually, one of the E4T, even after overnight, won’t work anymore, completed dead. Have you folks seen this before?
Strange that always the same left one has problem, the other two wheels are fine. I am going to try it on a different port next to see it makes a difference.