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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 (

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.

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Beer Bottle Night Lamp

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