The Near Field Brain is a full programmable near field communicator, based on a Raspberry Pi B+ and a Mifare RC522 RFID Scanner. To see successful scans, there are a led-light and a 5V piezo-buzzer mounted on the completly 3D-printed case. On the bottom are ventilation slots and the screw-holes for the mifare bridge and the cover-holders. the foots are glued onto the bottom-part. All raspberry connectors are accessible when you life the cover...I used a Raspberry Pi B+ with a minimal debian wheezy, i installed a Apache 2 Server and the RFID and GPIO drivers. For the Administration i use a WLAN Dongle and a self-coded Web-GUI...