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Topic: Turn on lights (Read 2234 times) previous topic - next topic

HazardsMind

Yes, a micro will work, but as I said before, you need to know both the micro operating voltage and the sensor voltage. I think both work at 5 volts, if that is true then you are fine.

As for the grill... that you may need to test, because I really can't say.
My GitHub:
https://github.com/AndrewMascolo?tab=repositories

rickso234

If you want it east to hide, an IR source and detector LED pair can be hidden behind a piece of smoked plastic flush with the wall. The concept is pretty simple and may not need anything other than the diodes and a few resistors with the Arduino. The IR source and detector can be pretty much side by side as long as the detector doesn't "see" the source beam reflections off the back of the smoked plastic. THen when your hand (or anything else) comes close to the source diode, the IR reflects off it and back towards the detector which the Arduino can "detect" on an input pin and drive a relay to switch the light.

HazardsMind

In another forum post, one person found this, I made a slight modification.


int on=0;
If(sensor==HIGH) { // this works

~on; // on !=on   should work too

digitalWrite(lights, on ? HIGH : LOW);
}

This would be your simple latch.
My GitHub:
https://github.com/AndrewMascolo?tab=repositories

Lvothe

The relay could be a mosfet? Also can i dimmer the lights? Usig the pwn output would work? Maybe using the distance as the dimming value?

HazardsMind

#19
Jan 08, 2013, 12:14 am Last Edit: Jan 08, 2013, 12:40 am by HazardsMind Reason: 1
Yea all would work.
My GitHub:
https://github.com/AndrewMascolo?tab=repositories

Lvothe

The Parallax Si1143 Proximity sensor has three points where it "senses" if i use one to turn on and off and the other two to the dimming (+ & -) would it be faster? Using the time to increase/decreases the light...

HazardsMind


The Parallax Si1143 Proximity sensor has three points where it "senses" if i use one to turn on and off and the other two to the dimming (+ & -) would it be faster? Using the time to increase/decreases the light...


It would work if it understands which direction it was being swiped from. You might need to make your own swipe code, it shouldn't be too hard though.
My GitHub:
https://github.com/AndrewMascolo?tab=repositories

Lvothe

Thanks
Also do yoy have a mosfet you would recommend to me?

HazardsMind

My GitHub:
https://github.com/AndrewMascolo?tab=repositories

Alex_K

Swipe code is not that complex, detect and time each led in unsigned long variables and subtract milis().

Breakout breadboard friendly board of Si1143 is available on ebay (search for "Si1143"). If you need sample code you can find it in my other post here:
http://forum.arduino.cc/index.php?topic=155004.0

Si1143 breakout board pictures:


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