Light Sensing diode to activate baklight?

mrmagoo_83 · Post by **mrmagoo_83** » Thu Apr 25, 2002 11:22 am

Ok all you guy with big brains. I am looking at buying the MO LK204-25PC. I understand it can be set to have the backlight turn on you off, is that right? I was thinking of putting a diode, like those that turn on you porch light when the sun goes down. And have that turn on the backlight when my house gets dark. Do you think this is possible or would it be too hard?

Post by **Henry** » Thu Apr 25, 2002 11:26 am

Why not, if you can make the light sensor press a key on the keypad, (short two pins together) the LCDC (for example) will see this keystroke and you will be able to turn on/off the backlight.

mrmagoo_83 · Post by **mrmagoo_83** » Thu Apr 25, 2002 12:04 pm

Thanks Henry. I am new at this kinda thing, and its been a few years since I have had to use component level part of my EE. So plan on seeing more questions to help refresh my memory. THanks