I want a simple on/off programming for 8951.Please guide me to program.
You'd probably learn more if you read a couple of manuals, and did it yourself.
You seem to have already managed one of the steps - getting your hands on the keyboard.
But you need to include a step where you locate and read a bit of documentation too. It isn't like the world lacks that type of information...
A what ?
Dave might have liked one of them.
Probably a Half Adaptive Light sensor.
Reminds me of another thread recently....