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1  Forum 2005-2010 (read only) / Troubleshooting / Re: Arduino 16 and Apple new Java update on: June 16, 2009, 11:12:34 am
Thank you so much, it works!
2  Forum 2005-2010 (read only) / Troubleshooting / Arduino 16 and Apple new Java update on: June 16, 2009, 08:44:44 am
Hi, yesterday I did the new Java update from Apple and now, I can't boot Arduino anymore. I've got a "Cannot launch Java application" eror message. Anybody got the same problem?
3  Forum 2005-2010 (read only) / Interfacing / Re: Dimming an AC light on: November 28, 2008, 03:52:00 pm
remember to place a big capacitor at the arduino output pin because the dimmer doesn't like the fast PWM pulses.

What kind of value are we talking about for the capacitor?
4  Forum 2005-2010 (read only) / Interfacing / Re: outputting 0-12V variable with Arduino PWM ¬†out. on: February 12, 2009, 04:37:15 pm
Thanks, it seems much better now with the resistor and the condenser. Also, I know the dimmer doesn't like PWM. In my older circuit (the one who gave me 5v) I used a condenser to regulate the PWM. This is a real newbie question but I figure the condenser I'm using now will act the same?
5  Forum 2005-2010 (read only) / Interfacing / outputting 0-12V variable with Arduino PWM  out. on: February 12, 2009, 03:32:12 pm
Hi,

I'm using an Arduino to control a dimmer. The dimmer needs an analog out 0-12v. I'm using the following circuit to get 12v instead of 5v:

http://itp.nyu.edu/physcomp/Tutorials/HighCurrentLoads

Basically, this is just a TIP120 connected to the PWM out and to the 12v out. The problem is that instead of getting 0-12v with PWM from 0 to 255, I'm getting 6v-12v.

Hope I'm clear enough in my explainations. Any solution or cue to help me fix that? Or any other suggestions to get 0-12v from 0-5v?


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