finally, I have defined a logic which will help us using two camera on single video in connection (in DVD)
There is a button (switch) for driver.
By pressing (turning on) the switch, Front camera will show on the screen
Un till and unless you don't turn off the switch (button), the front camera will show the screen.
The moment you put the reverse gear, the rear cam will show on screen.
and when you put the car in Drive (forward gears), the front camera will show.
This logic is the exact and complete requirement for a driver.
If you have rear cam installed and working in your car,
all you need is following things
- A button (Switch) Parking Light Button can be a good option
- Front Camera
- One 5 Wires Relay (Cut out in local language)
- One 4 Wires Relay (Cut out in local language) Make sure this is a Normally Closed Relay.
Normally closed relays are those, which are passing circuit between two wires, untill you activate the coil to open the circuit.
- Wires about One length of your Car. (about 20 ft)