“The products and service are very good. Perhaps you could look at how HATs can be stacked. My project uses a Uputronics Hat plus your prototyping HAT, ie a stack of 3 boards. There are only 8mm tall male/ female standoffs but the 40 pin stacking headers have various heights of block and pin lengths. I have assembled what I need from the bits available and some 1mm washers but it would be better if there were standardised parts for unlimited stack heights. I'd be interested to hear what you think.”
“Using with a 3b+ and Poe hat 2.0. Not essential but bought in case I wanted to add another Hat. They're a snug fit but careful and steady pressure gets them working. Getting them apart is easiest done with a Stanley Blade slowly and steadily. Very pleased.”