(12-11-2018, 05:11 PM)pantera Wrote: You've missed my entire point. I meant polling in GPIO terms and inexcusable to Pine.  As a software engineer, I should be able to set callbacks and not constantly interrogate the pins for voltage.

And you missed mine. It works for me. Simple as that.

As I said the GPIO pins situation is easily sorted with a Raspberry Pi, tried and tested for the job.

As a software engineer you above anyone should know when you embrace new untried and untested hardware with limited reference resources you are working at the bleeding edge and either come up with a solution of your own or move on to something that you can work with.

What I will say its a powerful piece of kit for the price and specifically for what I bought it for. I'm surprised a person with your level of expertise bought into something that clearly was not suitable for your purposes.

In this case my glass was half full and yours half empty. As far as I'm aware the supplier will refund your purchase price or there is a healthy used market demand for them out there. Clearly it is of no value to you at this stage.