Kristian Lauszus writes, “In this blog post I will describe a IoT (Internet of Things) Vending Machine that I built quite some time ago with a friend of mine Sigurd Jervelund Hansen. At Sigurd’s dorm room they got hold of an old vending machine free of charge, as it did not work. We quickly decided that we wanted to get it working and give it a overhaul as well. In the end we enabled it to take both RFID/NFC cards and coins and make funny twitter updates about it.”
The source code available at Github. More details at TKJ Electronics blog.
Check out the video after the break.
Hi! What’s the SD card reader PCB on this picture?
It seems to have USB as well?