Quote:he polling speed is limited by the hardware on each neotrellis board, Not by the controlling processor, no matter how fast it is, so the pi zero (or any other processor, like the M4, is more than adequate A button can only physically be pressed as fast as a human finger can move).
The reason I have chosen the Rasp Zero over Arduino is that I needed more speed to process data coming from serial, not so much for the i2c side.
Quote:2. Each individual board on the neotrellis fires an interrupt as soon as [b]Any[/] key is pressed on that board. This interrupt along with the board Id and x, y id is immediatly sent over the I2c bus to the controlling processor. This is the ideal setup as you don't have to discover which board is sending the button press signal. Again the time needed to process on the controlling processor is trivial when human intervention (the button press) is involved.
Thats what I dream of...
Quote: (I have to fit this into my schedule, which, although being retired, is quite full).
Sorry if I sounded demanding, wasnt my intetion at all.
Let me know if/When you have news,
Thanks.