Closed bakosaleima closed 2 years ago
Hi Bakosaleima,
The EM4095 and RDM6300 are RFID-readers. These readers generate an LF-field and require lots of power to do so.
The AS3933 behaves more like an RFID-tag. It requires the energy of the RFID-reader to wakeup.
So : no, the EM4095 and RDM6300 can not be used instead of the AS3933.
thank you for the quick answer, I didn't undestand whether the rdm6300 couldn't be used because of range or hardware incompatibilities? The signal is on 125khz both rdm and as39 work on the same frequency, I don't care about power or range, so theoretically could the rdm receive the signal as it is and resend it?
You could use the RDM6300 or EM4095 to wake-up an AS3933.
I stopped developing the AS3933 because I think Bluetooth Low Energy (BLE) is a better fit for most applications:
All these are disadvantages that a BLE-device (e.g. nRF52840) doesn't have and it doesn't consume much more power.
If your application really requires RFID (e.g. for scanning items as they pass through a gate), you're probably better off with 13.56MHz vicinity cards/ICs (ISO/IEC 15693).
Wow, such a precise answer thank you so much! Anyway I would like to complete my work with rfid 125khz. My final question is this: will the rdm6300 work as well as as3933 in reading/sending wake up signal? If no do you know of any other arduino compatible device that can solve my problem?
You could try to use the RDM6300 to generate the 125kHz field to wake up the AS3933. As the RDM6300 probably can't modulate the LF-field, you can't use the MSK-pattern matching of the AS3933. The AS3933 will wake-up when it receives any 125kHz signal, probably leading to a lot of false wake-up events.
In according to you, could the EM4095 be used instead of AS3933 as wake up signal for rfid application? And what about RDM6300