Instructions | Car alarm secure remote with nRF24LE1

1

Step 1

Solder wires to the modules so they can be programmed.
2

Step 2

Connect the modules to the Raspberry Pi.
3

Step 3

Setup the programming environment on the Raspberry.
4

Step 4

Compile the code and download it to the modules.
5

Step 5

Make a case or modify one to accommodate the transmitter.
Extra HW is a push button, a CR2032 battery holder, a resistor and a LED.
6

Step 6

Connect the receiver to the car's alarm. Disconnect the alarm's receiver by cutting the PCB trace that connects it to the microcontroller.
Extra HW is a 3.3v regulator (or module) to connect it to the 12v.
7

Step 7

Additional features: connect the receiver to the car's board computer to display low battery warnings.

Car alarm secure remote with nRF24LE1