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Automatic monitor switch

Automatic monitor switch

The objective of this device is to, to turn off the monitor (TV set), when composite video (CVBS) is absent. Instead of, to keep the screen black, device just turn it off. Also, the device will automatically turn on the monitor, when the image appears. Composite video (CVBS – Compo-Video Video Baseband… Continue Reading

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Adapter for your digital camcorder

I felt the need in the creation of the disclosed device, when I was approached by one operator after the purchase of a new camcorder. With this arrangement the camera can be powered by small batteries, used in uninterruptible power supplies, which significantly increases uptime, which is so necessary… Continue Reading

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Sensitive comparator brightness of objects on the screen as a detector controlled environment changes

Described in the Czech amateur radio magazine [1] scheme allows us to identify not only change the brightness of the monitor, but also to fix the movement, For example, people or vehicles in the reviewed camera space. According to the original source, System sensitivity is so high, that allows you to make a "response" even… Continue Reading