I have problem on setting up the Espresso Lite v2.0 and RFID Reader. My project is touchig the matric card onto the RFID Reader and display it on serial monitor. I have successfully compile and upload the coding without error. However, the RFID Reader still not functions. The RFID reader cannot detect the matric card. The pin layout I used to setting up are as follows :
Espresso Lite v2.0 pin RFID reader pin
3V3 3V3
12 MOSI
13 MISO
GND GND
04 SDA
05 SCK
RST RST
For the pin, I only declare for SS PIN and RST PIN. However, since the RFID Reader is fail to functions, it keep change the RST PIN of the Espresso lite onto other pin number, but the RFID Reader still not function.
How do I overcome this problem?