AirHarp Progress Report 2011-06-29
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2:29
AirHarp Nano now available!by lightharp173 views- 5:27
How to build an AirHarp - Part 2: Firmwareby lyratron429 views
- 0:20
touchGrove - Air Harp for the iPad - Available on the App Store - April 3rdby touchGrove30,000 views
- 7:26
Air Harp (iPad Instrument) Jam Sessionby NeonSurgeDev11,120 views
- 3:52
"The Musician" on AirHarpby lightharp868 views
- 7:39
AirHarp progress report 2010-11-30by lightharp119 views
- 2:58
pre-AirHarp ultrasonic MIDI thereminby lightharp193 views
- 2:37
AirHarp 2.0 (preview)by lightharp124 views
- 2:47
ejayerik plays with his new AirHarpby lightharp101 views
- 2:21
Dalby Air, Harp Performanceby chindora235 views
- 8:29
How to build an (OLD) AirHarp Shield 1.0by lightharp284 views
- 2:34
Peter demos the AirHarp on "Ask an Engineer" with Limor Fried a.k.a. Ladyada!by lightharp70 views
- 8:02
AirHarp Eats ep1...by AirHarp315 views
- 5:05
Sinfonietta Fiona's Air - Harp-Fiona Grahamby kgs4two4137 views
- 1:31
AirHarpby jaisor98 views
- 9:49
How to build an AirHarp - Part 1: Hardwareby lyratron780 views
- 1:27
Scanning ultrasonic sonar AirHarpby lightharp100 views
- 1:24
O mio babbino caro on AirHarpby lyratron70 views
- 21:03
Learning O'Carolan's Air - Harp Tuesday Episode 22by JoshLayne77640 views
- 6:56
How to play the AirHarpby lyratron567 views
@ejayerik you're unbelievable, man. unbelievably awesome!
lightharp 8 months ago
@miro2424 haha, keen observation! i agree that would be a serious problem if it weren't for the fact that i'm using the ATmega328's internal pullup resistors activated in firmware. set the pinMode() of an I/O pin to INPUT, then immediately write a HIGH to it with digitalWrite(). it will pull the pin high, but in a high impedance mode so you can still pull it low through a switch. there's no need for current protection as long as you're careful and never put that pin in a low impedance mode! ;?)
lightharp 8 months ago
I had a look at your schematics and I noticed that you have the push button switches signal lines floating (unconnected in limbo between 5volts and ground) when the switch is not pressed. This is not acceptable, you better connect the signal to 5volts.
Don't hesitate to ask questions.
miro2424 8 months ago
I should have a case via sketch up by Friday. I also have autocad for you plus a for dummies book to go with it. It's a PITA but if you want it.....
ejayerik 8 months ago