12f675_fuse_about_to_blow!

[mackrackit]

That LED array looks like it would really light things up. Might just be what you are looking for. The lens idea was for some distance and intensity if you are only using one or two LEDs.

Laser alignment was a ... very difficult.

The laser and sensor are mounted on 2 inch heavy walled pipe cemented into a 3 x 3 x3 foot chunk of concrete. We did/do the alignment at night with a 4 x4 foot piece of plywood to start with. Every once and a while with the change of seasons and all the earth quakes we have here it has to be re-adjusted. At that distance the laser spot is couple of inches in diameter so there is a little forgiveness.. But I should build a bigger target.

[LEDave]

I guess over that distance the trans / rec would have to be mounted rock solid (literally).

You must have a seriously big back garden mackrackit to have to transmit over a quarter mile
I wouldn't like to have to cut you're garden grass

I'm going for the Maplin IR_Display. Do you think it will put enough light out to take a picture at a reasonable shutter speed without using the flash?

Dave

[mackrackit]

I wouldn't like to have to cut you're garden grass

It is all sand where I live with no ocean.

I'm going for the Maplin IR_Display. Do you think it will put enough light out to take a picture at a reasonable shutter speed without using the flash?

I would guess yes if you can place it close enough to the target like you had the PIR in the cereal box. It will be directional like a flash light (hand torch?).

[LEDave]

IR_LED module ordered up, should arrive early / mid next week. It will be interesting to see how well the camera works under this kind of light.

Dave