Armin

@arthurpsmith Thanks. A few things got swallowed when you copy-pasted this. My interpretation (with a few "fixes") is [here](https://github.com/arminbw/abstracttext/blob/master/docker_support/Dockerfile). I couldn’t find the 1.35.0-wmf.38 branch you recommended, so I checked...

However, as this is an abandoned proof-of-concept prototype, I guess it doesn’t make much sense to invest any more time. I wanted to play around with it, when I considered...

Hi Hong, Your build looks great! Let’s hope we can get it going soon. I’ve had a look at the video you sent me and the images look a bit...

I am not sure if I understood you correctly. When you *remove* the multiplexer from your signal board, you can measure a 5V wave at P7 (compare attachment)? If that...

OK, let me try to sum this up: You rebuild all boards and you get different results now. So there was something wrong with the old ones. I suspect there...

As a side note: I think it’s a typo, but if you want to measure the whole matrix, change the firmware code back to `measure_one(k, l)` not `measure_one(m, l)`.

Image 1 and 2 look pretty good! Regarding image 3 and 4, where you measure Pin3 of OPAMP-3: Did you reduce the frequency (269kHz?) here to get better measurements? **If...

Hi Hong, did you make any progress? Can I support you in any way?

Hi Hong, a change from 25mV to 18mV seems pretty good to me. The video you posted (where you are using 640kHz) looks good too, but the screen should be...

Hi Hong, sorry for the long delay. I will try to replicate your setup over the weekend.