@r8183594 I put a scope on the lines and I noticed they are very noisy. The noise signal is reaching 2V level. I removed all the signal cables and I'm...

Hello, I installed Teensy sketch 2.2 and AR4 V2.2. I forced cal to 0° and force cal to vert. All sliders are set to 0. Then, I moved J4 a bit and it...