First we want to generate the 134.2kHz carrier frequency for the reader. We can do that by using any of the Arduino's PWM-capable timers to generate a square wave. Arduino timers can only achieve a ...
The simpliest 125k RFID tag Reader for Arduino PRO mini. Use arduino pro mini + a capacitor + an coil to make an 125k manchester encoded RFID tag reader. See connection.png for info. Use a 472(4.7nF) ...