Complete system setup

[pauldau]

rbpi_setup.txt doesn't describe the setup for:
Fingerprint Scanner: Fingerprint Scanner - TTL (GT-511C3)
Keypad: Membrane 3x4 Matrix Keypad
Is there any information on setting these up?

Is there a schematic diagram to show the wiring for all the comments?
Raspberry Pi
Fingerprint Scanner: Fingerprint Scanner - TTL (GT-511C3)
RFID Scanner: PN532 NFC/RFID Controller Breakout Board
RFID Card: MiFare Classic (13.56MHz RFID/NFC) Card
Display: Monochrome SPI OLED Graphic Display
Keypad: Membrane 3x4 Matrix Keypad