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121  Using Arduino / Programming Questions / Re: Need some help for a science project. on: January 20, 2013, 01:05:39 am
Do you need help programming the Arduino?
122  Using Arduino / Programming Questions / Re: Need some help for a science project. on: January 20, 2013, 12:47:12 am
[highfive/]
123  Using Arduino / Programming Questions / Re: Need some help for a science project. on: January 20, 2013, 12:34:25 am
Just what I was going to say. Look at this- it will help
124  Using Arduino / LEDs and Multiplexing / Re: Dimming an LED strip on: January 20, 2013, 12:27:34 am
I am sorry you fried your Arduino. You don't need a capacitor; PWM is a pulse, if you add a capacitor it will absobe the pulse and there will be no dimming--full brightness.
125  Using Arduino / Programming Questions / Re: Need some help for a science project. on: January 20, 2013, 12:19:43 am
The servo is connected to your Arduino, I presume you will be connecting strings from the fingers to the servo, like a pupet. Then you write a program for the Arduino to rotate the servo quite exactly. (Eg. 25 degrees left)
126  Using Arduino / Programming Questions / Re: Need some help for a science project. on: January 19, 2013, 11:48:39 pm
That's the spirit! I had a time when I would bring a bunch of electronic components and sometimes my Arduino to school and secretly experiment during classes.
Good luck!
127  Using Arduino / Programming Questions / Re: need some help with this library on: January 19, 2013, 11:33:59 pm
http://flic.kr/p/dMXyLP
thats how to open a new tab
128  Using Arduino / Installation & Troubleshooting / Re: Windows 7 and driver signing on: January 19, 2013, 11:14:45 pm
This is how to install Arduino drivers in Windows 8:
http://www.bryonconnolly.com/windows-8-arduino-driver-install
It got me trouble and for a while I'd use VMWare.
*EDIT* this is a better guide.
http://www.windows7hacker.com/index.php/2012/08/how-to-install-an-un-signed-3rd-party-driver-in-windows-8/
129  Using Arduino / LEDs and Multiplexing / Re: LED problem on: January 19, 2013, 10:58:55 pm
I remmember once trying to dirrectly drive a seven segment display with my Arduino and the segments were really dim I checked and found that I forgot to put
Code:
pinMode(segment, OUTPUT);
!
130  Using Arduino / Programming Questions / Re: Need some help for a science project. on: January 19, 2013, 10:49:36 pm
No. Upload the sketches in the photos linked.
http://flic.kr/p/dMX4Ri
http://flic.kr/p/dMX4RV
131  Using Arduino / Programming Questions / Re: Need some help for a science project. on: January 19, 2013, 10:21:28 pm
Have you tried uploading the example sketches?


My advice is to grab your Arduino and work through the simple examples on this site, such as good old Blink. Then grab a servo and a potentiometer and work through the two servo examples, namely Sweep and Knob.
I really think that to start, you have to get your mind how an Arduino program hangs together and how a servo is controlled.
Good luck!
132  Using Arduino / LEDs and Multiplexing / Re: Lost with 50w LEDs + PWM on: January 19, 2013, 10:09:36 pm
You should use a piece of paper as a lamp shade to difuse the light. Then it would look nicer. Try not to make it la spotlight.
133  Using Arduino / LEDs and Multiplexing / Re: Dimming an LED strip on: January 19, 2013, 10:05:07 pm
Why don't you first write the code? With the transistor the code would be the same as PWM-ing an LED.
134  Using Arduino / LEDs and Multiplexing / Re: Dimming an LED strip on: January 19, 2013, 08:27:30 pm
Yeah you can drive it with a transistor or mosfet. I recommend the IRF540N mosfet.
135  Using Arduino / Motors, Mechanics, and Power / Re: Hacking Ac motor with Arduino and Solid State Relays on: January 19, 2013, 07:45:47 pm
Nice! I took apart a washing machine and got a huge ac motor with a nice ac capacitor as well. I'll post photos latter.
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