Connection Pin Set-Up for by CCNG

MFRC522 Reader/PCD to Arduino Uno

Signal	MFRC522 Pin	Arduino Uno Pin
RST/Reset	RST	9
SPI SS	SDA(SS)	10
SPI MOSI	MOSI	11 / ICSP-4
SPI MISO	MISO	12 / ICSP-1
SPI SCK	SCK	13 / ICSP-3

Relay-Key-Contact to Arduino Uno

Relay-Key-Contact Pin	Arduino Uno Pin
VCC	5V
GND	GND
SIGNAL	7

Relay-switch Start ENGINE to Arduino Uno

Relay-start Pin	Arduino Uno Pin
VCC	5V
GND	GND
SIGNAL	4

Trigger contact VOLTAGE to Arduino Uno

SENSOR Read Pin	Arduino Uno Pin
relay OUTCONTACT	6

READ ENGINE_VOLTAGE to Arduino Uno

From indicator car	Arduino Uno Pin
Relay-start Pin	Arduino Uno Pin
Indicator ACCU_voltage	A1

Note: Still in the Develop stage...!!