Interactive Proximity Sensing Table Modules, Infrared Sensors

Check out my growing DIY projects blog at:
http://electronicsandbeer.blogspot.com/

This is my first working multi-module prototype.

Mode of operation:
Infrared emitters for one pixel turn on for about 100 microseconds, then an analog reading is taken, then the IR emitters are turned off. Then the controller goes to the next pixel and repeats until it has cycled through the 4 pixels. It does this cycling through the 4 pixels around 30 times per second. The current pushed through the IR emitters is 140 mA, but since the emitters are on for only a short period of time, the average current consumption of the IR emitters is only a couple percent of the full current, so more like 3-4 mA.

Category:

Science & Technology

Tags:

• Infrared
• sensor
• IR
• LED
• table
• Light
• up
• sensing
• proximity
• glowing
• coffee
• electronics
• analog
• digital
• fun
• photodiode
• Atmel
• atmega
• atmega48
• atmega168
• atmega8
• microcontroller

[AFateSoTwisted]

That's really awesome ! Are you going to make it into a table, wall art ....??

[grahmaustin]

@AFateSoTwisted

I am making more of these so I can have an entire coffee table. I will post another video the new build, whenever I finish

[grahmaustin]

Thank you!

[wickedlasers]

very nice idea and implementation! =]

I guess your wallet simply lacks reflective properties. It is after all black and does look quite matte. I take it that simply altering the sensitivity was not a success for this issue?

[grahmaustin]

@wickedlasers

I could alter it a bit, but its still going to be a problem no matter what since, as you correctly point out, black and matte does not reflect light well, period.

[yz125krm]

Is there anyway that you can increase the ir sensitivity to more that a foot to like 15 foot

[xasdrubalex]

i've stared 20 minutes to this video just to recognize "black hole sun", what's wrong with me?

is that a string quartet version?

btw nice work!

[zoly19]

please send me the skematycs if you wonth. tanks

[ellarpc]

What type of ir sensors did you use and where did you get them? I think something like that would be great for a lighted dance floor

[niksa141]

schematics??

[Af1d3]

You gotta make a how-to video!

[olesmity87]

what you should do is create a 6ft x 1ft wide version and put at the bottom of a sliding door on a deck and increase the sensor range to about 8ft. making it the most coolest security light for a deck at night. This is really cool bro keep making em.

[surbo133]

that's awesome!, would love to do the lighting in my house with something like this lol lights go on and off as i walk from one room into the other, XD

[emulsifier72]

WOW thats totally awesome , imagine how awesome that would look as walls on a hallway !!!

[cooperrockss]

this looks fantastic, i had a few questions, what program do you use for the chip code? how much does it cost to make one 8x8 square? how much time did it take you to make an 8x8 square?