I have been putting together an RFID reader that can send tag IDs over Wifi to a machine running Max MSP on the same network. I have used an RC522 reader which I have blogged about before, and the recent Adafruit Feather Huzzah board which is based on the ESP8266 chip and includes an onboard Lipo charger so is great for portable IoT projects. For once I managed to find an enclosure of pretty much exactly the right dimensions, it was tight but I crammed it in including switch and indicator LED. The hardware will be used for a project at Three Ways School that aims to give non/pre verbal children a voice, more details to follow...
RFID RC522 + Huzzah ESP8266
This revisits the RC522 RFID reader that we blogged about here. I wanted to be able to use it with a Wifi connection to ping RFID tag IDs over the ether so I started hooking it up to a Huzzah ESP8266 board I had and after a bit of fiddling it worked! Its only sending over serial right now, but if I can get it going over Wifi, this is an incredibly cheap RFID tag beamer. The new sketch with a description of the pin connections can be found here.