i need the programing to upload on my Raspberry Pi. This programming needs to create a recurring charge so that when people entering my building will be charged 50p per entrance. Like an oyster card on the London Underground. I want to use the Square contactless payment device.
I specialize in IOt and automation applications of embedded systems on different platforms, I have worked extensively with linux based boards including the raspberry pi. Please contact me so that we can go over the details of your project.