Missing first step going forward

[jaseiffert]

Hi, I'm having a minor problem when going forward but for some reason going backwards it corrects itself.

On 0, go to 1, shows 0, go to 2, shows 1, go to 30, shows 29, go to 60 shows 59.
59, go to 50, shows 50, go to 40, shows 40, go to 20 shows 20, go to 0 shows 0.

I'm using one of the 5v 60mm Hand Wheel Pulse Encoder on pins 32 and 33 of my ESP32 DevKitC V4.
It says 5 volts but 3.3v seems to be working fine except that first step.

I put a Serial print in the Interrupt function to display the word "tick" and it does that, actually about 4 of them, when going from 0 to 1 on the hand wheel but the position shows 0.

I'm using your Interrupt Example code.

Any help would be most appreciated.

Thanks,

Jeffery

[M-Reimer]

Are you sure you have the right encoder type set? Full step vs. Half step?

[jaseiffert]

This is the what I purchased. https://www.amazon.com/dp/B07Q75KT49
It doesn't say but when I tried Half Step it just doubled the numbers but the same thing happened.
I tried a level shifter since it say to use 5v but that didn't make any difference either.
I opened it up as far as I could and it's an optical encoder but I didn't see anything being blocked on the disc around the 0 slots.

I'll try the example without the interrupt.

[M-Reimer]

OK, this one has "inverted" and "non inverted" outputs. Did you try both? This encoder, for sure, has active components in it, which is nothing I have ever tested with. So I don't know which form of signal my (mainly written for passive encoders) library expects.