any ideas for remote bulb and lcd power up and shut power?? any easy easy circuits to build?

what about making the bulb and the lcd not get power until they sense a signal? and then making them shut down after not getting a signal for a while? sound doable?

I have mine going through a switch for main power, and then my lamp is switched through a relay.

both switches will be mounted in the wall to have a stock "house" appearance

Depending on your definition of easy, I built an RF remote into my projector. The actual bulb power is controlled via a Relay, which is labeled in the schematic.

Note that my circuit is based on the remote being a momentary switch; i.e. when you push the button on the remote, the remote's receiving circuitry closes the connection, and when you let go of the button on the remote, the remote's receiving circuitry opens the connection. The actual remote I won on eBay had 2 settings, one for the momentary behavior, and one for a toggle behavior.

In the toggle mode, when you push the button on the remote, the remote's receiving circuitry closes its connection, when you let go of the button on the remote, the remote's receiving circuitry continues to keep the connection closed. Then, when you push the button on the remote again, the receiving circuitry opens the connection. On the remote that I have, the "connection" on the remote's receiver circuitry is a relay. You could hook your light bulb's power to this relay, and then use the remote in the toggle mode. If you do this, you don't even need the circuit from my build.

The only reason I use my remote in its momentary mode is because I wanted the remote to work in parallel with the momentary button I installed on the back of my projector. This way, if I lose the remote control, I can still turn the projector on and off (not that I have ever lost the remote). So, my circuit takes an number of momentary switches as input, and then performs its own toggle function on the power to my bulb.

It can be as simple or complex as you want.

A remote for switching on your lamp is nice but for me with a 400w HID lamp in your Diy projector is a killer so I think you should have a thermastate in front of your lamp circuit to shut off the lamp in case your fans stop or any reason that your box is overheating and the good thing about these attic fan thermaste is that they need no power to work but as Pirin stated it is always good to be able to turn things on a off manually.

RR

I am currently in the process of adding infrared remote control to my projector to power it on and off. I found an IC at simerec.com that lets you use pretty much any infrared remote control to control anything.

I put and IR reciever in my PJ.
http://www.lumenlab.com/forums/index.php?s...st&p=270880
It's a two channel, so I have one channel turn on the bulb, and the other puts power to a regular power outlet on the back of my PJ, so remote control room lighting.

The IR reciever is similar to this one. I can't remember where I got mine, but it took a long time to solder. The brand was Velleman.
http://www.electronickits.com/remote_control/ir4.htm

I control it (and everything else) through a logitech harmony remote I got on ebay. The software knew the IR codes that Velleman uses, otherwise I'd have to buy a Velleman remote too.

Hi, You can follow my PLOG - I am developing a similar one - but it is in the middle of development.
And it is not remote controlled, but rather focused on controlling the fan &
lamp from safety point of view.

http://www.lumenlab.com/forums/index.php?s...rt=#entry287955