Beer Bottle Night Lamp

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These are the slides for my 'How to make a night lamp out of a beer bottle' talk we had in the TinkerSoc OpenMic #1 (http://bit.ly/4uo3uC) …

These are the slides for my 'How to make a night lamp out of a beer bottle' talk we had in the TinkerSoc OpenMic #1 (http://bit.ly/4uo3uC)

It mostly covers different ways to detect 'touch', using capacitive touch sensing solutions and how to make a simple on-off controller using a flip-flop.

Comments/Suggestions to: omer@tinkersoc.org please...

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  • The memory elements in a sequential circuit are called flip-flops. A flip-flop circuit has two outputs, one for the normal value and one for the complement value of the stored bit. Binary information can enter a flip-flop in a variety of ways and gives rise to different types of flip-flops.

Transcript

  • 1. Beer Bottle Night Lamp
    ...a bit more than just sticking a bulb inside a bottle!
    Omer Kilic
    omer@tinkersoc.org
  • 2. A highly technical overview...
  • 3. I am mainly going to talk about capacitive touch sensing and how to use a flip-flop+transistor as an on/off switch
  • 4. Capacitive Touch Sensing
    Serious business…
    …if you are sensing multiple ‘touches’
    Single touch detection is easy
    ‘Hot Topic’
    Loads of alternative solutions/vendors
    This talk is about a single ‘button’ application
  • 5. Choices...
    Cypress CapSense
    Microchip mTouch
    Atmel (Quantum) Qtouch / maxTouch
    Simple PNP transistor
    STMicro S-Touch
    etc...
  • 6. Simple PNP Transistor
    Cheapest
    Kinda hacky...
    http://www.diylife.com/2008/02/11/build-a-touch-activated-pulsating-led-heart-valentines-card/
  • 7. QT100A a.k.a AT42QT100A
    Horrible package to hand solder
    Easiest implementation
    Cost not too bad...
    http://www.atmel.com/dyn/products/product_card_touch.asp?part_id=4451
  • 8. QT110
    Simple package
    Seems to be obsolete 
  • 9. AN1202 - Capacitive Sensing with PIC10F
    Cheap
    Need to program the PIC manually
    Can be customized!
    http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en539707
  • 10. Right, we got the ‘touch’ bit working...
    Next step is to create a simple controller...
  • 11. UltraTouchSwitchNG3000 (tm)
  • 12. Flip-Flop?
    (cc) flickr/comingupnext
  • 13. That’s all folks...
    Thanks for listening, any questions?
    Comments/Suggestions to omer@tinkersoc.org please...
    *All copyrights/trademarks/etc belong to their respective owners yadayadayada...