Žao mi je, ova stranica je na engleskom.
Please, check out OTIMCON https://github.com/stajp/otimcon - Arduino RFID based open source timing control
OPORCON is an open source orienteering electronic control. It's current design has many flaws, so this system is OK for training purposes. Flaws and possible improvements are stated. The system is given on Artistic license 2.0 license, so you can do almost everything with it, but all improvements, if you give the system to third party, must be published publicly. Please publish changes even if you're not obliged by license.
Author of OPORCON: Stipe Predanić