Hi, I have a couple of PI to test your code, and as I am a linux sysadmin, web developer, and a hardware enthusiast, I will be glad to work in your project.
I do not ask for freeing founds before showing some work, but I definitely ask for the founds to be added to every milestone as they get accomplished. Just to be sure you will pay me, (I had 2 bad employeers recently who didnt pay nor answer...)