Simple RF-ID Reader Module Design
After seeing some people create their own discrete (well, OP-AMPs are discrete nowadays, right?) RFID readers, I wanted to give it a try.
I first started by creating a simple, non-filtered, non-processed reader. I’ve used a coil of about 1mH for both sides. Since my chosen frequency was 125 KHz, my capacitor should be 1.62nF according to the following...
Labels:
arm processor,
modules,
RFID
