Hi dirk,

At the moment the TTL signal that I handle has a maximum frequecy of 3KHz.
So, would be possible to work with a sample rate of 250 us. In my implementation I attach the falling edge of gpio to an interruption, so I don't poll the input GPIO directly.
Would be possible to attach some GPIO ...

Hi,

I developed a proof of concept using a Rasperry Pi 3B+ for an industrial product to synchronize devices using TTL signals.
The project works well and now I'm seeking a Raspberry Pi industrial version to integrate in the final product.

I'm very interested in Revolution Pi but I have technical ...