SLX Rpi reader
Connecting a 12 key keypad
This information is based on the Storm 720 TFX 12 key keypad. However, other keypad's should work in a similar way
Contact connections, as viewed from the rear of the keypad:
[8 7 6 5 4 3 2 1]
Row/col key locations:
1 2 3
A [1] [2] [3]
B [4] [5] [6]
C [7] [8] [9]
D [*] [0] [#]
Detailed wiring setup to connect the keypad to the Raspberry Pi:
| Connection Pin | Row/Col | RPI pin |
|---|---|---|
| 1 | A | BCM 4 |
| 2 | B | BCM 14 |
| 3 | 1 | BCM 18 |
| 4 | 2 | BCM 27 |
| 5 | 3 | BCM 22 |
| 6 | - | - |
| 7 | D | BCM 17 |
| 8 | C | BCM 15 |
Connectiong a RFID-RC522 chip reader
Connect the RC522 module to the RPI using the following wiring schema:
| Board pin name | Board pin | Physical RPi pin | RPi pin name |
|---|---|---|---|
| SDA | 1 | 24 | GPIO8, CE0 |
| SCK | 2 | 23 | GPIO11, SCKL |
| MOSI | 3 | 19 | GPIO10, MOSI |
| MISO | 4 | 21 | GPIO9, MISO |
| IRQ | 5 | 12 | GPIO18 |
| GND | 6 | 6, 9, 20, 25 | Ground |
| RST | 7 | 15 | GPIO22 |
| 3.3V | 8 | 1,17 | 3V3 |
More information in the pi-rc522 repository.