The sensor/monitor shown in the diagram ‘wakes up’ the host system on detection of infra-red (IR) signals. It draws so little supply current that it can remain on continuously in a notebook computer ...

Finding a cheap secondary PC monitor is pretty easy. But if you want one that looks good, is built well, and is easily customizable, you won’t find those qualities in a budget screen from a no-name ...

For monitoring the output of RGB LEDs used as LCD flat-panel backlights, the C9303-03 and C9303-04 modules employ sensors with three photodiodes, each optimized for a separate wavelength in the red, ...