First time poster. I wanted to build an Arduino RFID door lock system. I live in an apartment building where I don't think I can install a reader on the outside of my door. Does anyone know if there's a reader I can get that will read the tags through the door/doorpost?
Hi,
Do some reading on RFID options; there are now several, from the older 125Khz with very short range, to some 13.56 Mhz and now even some up in the Ghz range like WiFi.
Hi Terry,
Do any of these look reasonable for connecting to an Arduino and just reading back an NFC card serial number?
Don't need to write, don't need any other data off the card.
Thanks
The ones I use are from stronglink. They have a real good customer service.
They have many modules. Probably the one you'd like is the following because of its size and pcb integrated antenna.
I did not tested with doors. I've got sl031 and sl016.
Stronglink provides any module with I2c xor serial interface.
They are easy to use. They do not manage collision.
The collision occours when multiple rfid are detected by the reader in the same moment.
The collision management provides some functions to read multiple rfid one by one.
In your case it should'nt be important as you probably want just one rfid key be used at once.