Should I be asking this on Hardware Recommendations? That is – do I need some sort of test device? Or, hopefully, I can just my laptop …
I am developing a vending machine controller, as a hobby project.
I want to brush up my Ada skills and will use an Onion Omega2. Some details of the GPIO can be found at https://docs.onion.io/omega2-docs/using-gpios.html
My Ada is rusty, I am new to the processor and I won’t have the hardware for a while yet – what could possibly go wrong? :-)
Eventually, I will be using he GPIO to read from a numerical keyboard and to drive motors.
Questions: what’s the simplest, cheapest easiest way to test my code, to make sure that I read/write GPIO? I am fine with software, which is my day job, but lousy with hardware, so please don’t ask me to do any soldering.
Right now I want to make some very quick checks as to whether I can interact with GPIO, UART & WiFI from Ada, or whether just to fall back on C, for which more example code is available.