I would like to create an app which connects to some sort of a board which has 8/16 input ports and read the state of those ports (on/off). I do think the main thing is how to connect a b4a app to this board via WiFi.
Hi,
Sorry no wifi
Some 3 years ago and while I was in China.. I designed an I/o board that has independent 8-bit inputs and 8-bit outputs.
The board has no serial port, but it has a USB port. I am no more using it and if you like I can send you the board along with
the h/w and s/w documentation. (Sch + PCB + Embeded C code for Atmel ~52 MCU).