DTE4027 RFID Reader Module
User Manual
7
3 SYSTEM DESCRIPTION
The hardware is a small PCB which has the following parts:
•
RFID antenna coil on the PCB
•
RFID chip
•
Slave PIC processor for interfacing between the UART commands and the RFID chip
•
Red and green LEDs that can be arbitrarily controlled via UART
•
Micro-switch that can be read via UART
On the back of the RFID board there is a push-button micro-switch that is connected to two spare inputs
on the slave processor (RA2 and RA3). This can be read via the UART communication.
3.1 Electrical Interface
The RFID connector is a 6-pin Molex PicoFlex 90814-0006.
Pin
Function
1
5V
2
Ground
3
Data out of master to RFID
4
Data out of RFID to master
5
RFID CTS to master
6
Not connected
3.2 Block Diagram
13M560Hz
µC
PIC16F87-I/SS
13M560Hz
RFID IC
MFRC5310
1T/OEF
Adaptation
circuitry
UART
SPI
5V
5V
5V
Antenna
