This Shield is capable of controlling an RFID ID-20 reader, and it also possesses a data logger (RTC + microSD reader) and a relay control device.
This Shield was designed so that along with the RFID reader it can work as an access control system, monitoring entrance and exit hours. In this way, the board allows time logging with a real-time clock in the microSD card. The relay also can be used to unlock electric doors, tourniquets, or horns.
- Real Time Clock (RTC).
- microSD socket.
- CMOS battery socket.
- Relay output up to 10A/250VAC; 10A/3VDC.
- RFID reader connector.