Please follow this link also. http://www.seeedstudio.com/depot/125Khz-RFID-module-UART-p-171.html
@user63048 started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Please follow this link also.
http://www.seeedstudio.com/depot/125Khz-RFID-module-UART-p-171.html