Constructing Vehicle surveillance system for business use. Consists of three video cameras (Color and B & W facing forward, color facing rear) mounted on radio controlled pan/tilt motors, with laser pointing device. All mounted under clear dome (matches emergency lights on vehicle) for weatherproofing. Also have infra-red spotlight but cannot mount under dome due to reflections. Question is...........various voltages. Cameras operate on 9V, laser is 4.5, pan/tilt is 12V. Camera requirements are: Video and ground, plus 9V and ground. Ground is common so three wires are required. Laser is 4.5V positive and ground. Pan/tilt is 12V and ground.Would like to operate all three using multi-conductor (10-12??) wire and operate off vehicles 12V system. Would like to operate from one control board but don't really wand to use 12V automotive converters for laser and cameras. Can I use simple resister circuit to reduce voltages and combine wiring to eliminate "big" multi-wire cable. Can only decipher simple circuits so any help appreciated.........<snip>
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