Teensy + photoresistors = Innovative Computer Mouse (HID)

[TheGugustar]

And how do you click ?



[gblargg]

Internally it knows your hand's absolute position, so can it move the mouse to that, or is it too coarse to be useful?

[stfuplznoname]

when u want to fake something , fake it nicely : )

[julienfacebook]

@stfuplznoname There's nothing fake about it.

I've published the code and the schematics, feel free to reproduce.

[kiback]

Wow, incroyable O_O

[kodaxii]

well done

bien fait !

[chrispcallx]

Julien, this is awesome. You should rebuild it! I think if you got together with a game programmer, it would be an awesome control for a flight game. Using your hand in the air to control the aircraft (pitch and possible roll.) and the other hand on a gaming mouse with several buttons to control speed and such (Maybe yaw!?). Cool concept!

[JeromeDemers]

Est ce que tu as déjà jouer avec l'intensité de la LED bleu pour controller la sensibilité de la souris? Je pense aussi que le type de couleur pourrais avoir un effet sur la sensibilité des photoresistors. Blanc vs Bleu.

[mraider94]

THAT'S FREAKING COOL!!!!!

[wgrube]

Very interesting!!! I'd like to see more about this.

[furrtek]

Mignon, j'aurais jamais cru qu'on puisse avoir une telle sensibilité/précision avec des photorésistances :)

[CubexDE]

I think you could probably pull this off with just 3 photoresistors, but it would require some more math calculations. One photoresistor above the LED, and the other two spaced evenly around it to the left and right, all of them equidistant to the LED.

Also, I realized something: how does one click with this? Maybe if you make a "slapping" motion (sudden increase in light followed by a sudden decrease) it should register as a click.

[lordzeppo]

Tres belle réalisation julien,le code doit etre super bien construit pour avoir une rréaction aussi sensible,chapeau ;p

[julienfacebook]

@lordzeppo Merci :)

[lucirz]

@julienfacebook what is teensy?

[RockGodFuck]

@lucirz It's an USB development board

[lucirz]

@julienfacebook can i get the schematic for this project? i'm starting out arduino and very noobie, i want to learn from people by doing their projects lol

[fredjoejimbob]

You're on hackaday!

Very cool sensor. The fact that it's made with simple components makes it even cooler.

[bytesilver]

tu vien de ou? quebec? montreal ou paris(france) ?

[julienfacebook]

@bytesilver Paris. But I built that when I was living in Ireland.

[kefsound]

English please.

[bytesilver]

@kefsound

all he's saying is he built a mouse with his teensy, and he using 4photodiods to detect the reflected light off his hand. he's not saying anything technical.

[julienfacebook]

@kefsound As bytesilver said, nothing special was said in the video. Just showing to a friend the concept.

The prototype detects the ambient light, then uses it to detect the inclination of the hand over the 4 photoresistors, in order to move the cursor.

This is just for fun, there's no real use to that...

[Nolansykinsley]

@julienfacebook There is a use for this... General awesomeness.

[lordzeppo]

@kefsound

learn freakin french.

[kefsound]

@lordzeppo yeah sure, lol.

[forksofpower]

Hey I tried emulating what you've done and you're code isnt working for me. What is your setup?

[julienfacebook]

@forksofpower Hey!

So you have to plug 4 the photoresistors on 4 different analog inputs (Analog 0,1,2 and 4 in my project. It's really important to plug in an ANALOG pin, since we need really sensitive values between 0 and 1023)

Then you have to plug an LED in an I/O pin (pin 0 in this project).

I used resistors between the photoresistors and the board. Don't remember the value, but I used the default ones, which were in the pack with th photoresistors.

[julienfacebook]

@julienfacebook (continuing) All components have a pin to the ground of course.

For the set-up, you need to put the 4 photoresistors in a square, with pin 0 being top left, 1=top right, 2 = bottom left, 3 = bottom right. Put the LED between the 4.

It should work now.

[kiback]

Il me FAUT ce teensy. =D

[james10pl]

Very cool project. I like the concept of a non-touch HID.

[julienfacebook]

Here is the code: zenhop.com/teensy/teensymouse.­txt

[nixad]

This is so cool! I must try it!