Clear Glass PCB AVR Touch Sensor

I made a clear glass printed circuit board to help with an upcoming project. It's crystal clear, and has circuitry printed, and parts soldered directly to one side. I made it using a Celestron microscope slide, copper leaf (if you want you can buy some off me), UV Glue and a toner transfer method.

The how-to is here: http://www.youtube.com/watch?v=Rf5HBLzDGQA

Category:

Science & Technology

Tags:

• pcb
• diy
• etching
• toner transfer
• clear
• glass
• electronics
• touch
• sensor
• led
• avr

[ALLTENCH007]

hiya, do fabric touch sensitive on/off switches exist?

[CNLohr]

@ALLTENCH007 It would not be too hard to make them. I got some conductive fabric from lessemf.com ... They have all sorts of new fabrics now.

You can use a similar design, to what I'm doing, potentially using fabric as the insulator... But, I would play with tweaking it for use directly with the conductive fabric.

[sp1nm0nkey]

What LEDs are you using such that emit through the top and bottom of their casing?

[CNLohr]

@sp1nm0nkey Sorry, I didn't see this... I used this: DIGIKEY: CLV1A-FKB-CJ1M1F1BB7R4S3CT-ND

[allanw]

Hmm, this would be pretty cool for my (too ambitious) project: electronoblog.allanw.org/2011/­08/yet-another-pcb-business-ca­rd-with-touchpad/

The problem is that copper is really opaque, which really ruins the effect.

[CNLohr]

@allanw Yeah... It's a pretty serious trade off. I never found a need to get x/y multitouch... This way is pretty straight forward and simple, even if it only lets you have as many zones as you have GPIO pins.

[Chubigans]

very cool!

[CNLohr]

@frank26080115 Absolutely not! AVRs are very competent as far as turning any generic IO into capacitive touch sensors. I guess I'll need to draw up a schematic and post the PCB design :-/ *adds to todo list*

[frank26080115]

Are you using QTouch?

[jeriellsworth]

Neat.