Bonjour, J'ai récemment acheté un module Relay 12V: https://is.alicdn.com/img/pb/773/926/850/850926773_533.jpg J'ai constaté qu'il y avait 3 pin en entrée: - VCC : 12V -GND : la masse -IN : mon entrée permettant la commutation du relay J'aimerais savoir quelle est la tension max que l'on peut appliq...

Hello,
with research I found several type of RFID reader :

HF : 13,56 MHz with ISO 14443
UHF : 840 - 960 MHz with ISO 18000

Yes I want detect continously the precense (and non-precense) of multiple tag, I did some research and found that there were RFID readers that managed the anti-colision protocol to be able to read several tag, notably in UHF Like this module : http://www.es-france.com/produit9151/product_info.html I...

Hello,
Thank you for your reply, the reading distance is about 10 cm.
The goal is to detect the presence or not of several objects on the antenna.
I looked at your link, but I did not find information about multiple tag reading.
Is it possible with Adafruit?

Hello, I work on a school project where I have to be able to read several tagged objects placed on a multiple tag reader. So I found with my research this module: http://www.jadaktech.com/products/rfid/rfid-engines/skyemodule-gemini but I do not know if it is completely compatible with the Raspeberr...