Convert 1 channel Monitor to 4 channel monitor

Hello world! Today i converted a 1 channel Monitor to 4 channel monitor by using arduino, it has a keypad plus access code, Default code is 1234. We use 4 Relays to control 4 CCTV cameras. I had this old monitor laying around dusting away and i decided to make a circuit on a prototype board to put my old monitor back in use, since i have 4 wired cameras and this monitor can only take 1 wired cam, i made some kind of splitter from a couple of DVR Cables from a broken EasyCap USB Dvr box, Arduino, a 4×4 keypad, a 4 channel relay module and a old Monitor that had 4 wireless cameras by default, this way i converted a 1 channel Monitor to 4 channel monitor.

NOTE: You can also do this with your tv of course!

Schematic 1:
1 channel Monitor to 4 channel monitor

Schematic 2:
1 channel Monitor to 4 channel monitor
Just wire it up like the schematic & Upload the code!

Parts list:
Arduino uno
4 Channel Relay Module
4×4 Keypad
PCB Prototype board, Or breadboard.
Jumper wire set MM/FF/MF
Leds, 1x red 1x green. Or Whatever color you like.
Buzzer (optional for key press sound)
Old 1 Channel monitor Or just your TV.
5 DVR Video Cables The yellow ones,(Red ones can be used to! I used a red one 2.. Doesn’t make a difference, white can be used to.)
And of course 4 wired cameras!

For the DVR cables:
Simply cut the DVR Cables in half or as long as you want them.
You will see a white and red wire, at least in my case it was. White is – (Cathode) Red is + (Anode)
Connect it like the schematic shows. Put it on a breadboard or solder it to a PCB Prototype Board.
It is very easy! Good luck with converting a 1 channel Monitor to 4 channel monitor!


Danny van den Brande

Programmer, Game Designer, 3D Designer, Web Designer, Graphic Designer. Jup this website looks crappy.. :) But enjoy the projects! Everything you need is here.

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