Reply To: USB feedback from mini causes screen to flicker

[Johi]

Hello Jeff,

I am not a phyton expert nor a firmata expert, but I have a decent background in C++ and electrical engineering.

The first thing I would do is to figure out in what region the flicker is by some simple experiments.
One of the things hou could do is control a digital IO but not relay with the same code.

If then if you see no flicker, a power supply topic can be at the base. You could even decide to power your board at 12.5V to have some margin or make sure it can produce enough amps.

But what kind of power supply do you use, is it a lab supply or something else?

Anyway: I would control digital IO without load and see what it gives. Pending the result you need to look on the PC side or on the Controlllino side.

Br.

Johi.

• This reply was modified 3 years, 1 month ago by  Johi.
• This reply was modified 3 years, 1 month ago by  Johi.