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Determining anything about a Peltier module
Hi guys, I got a small Peltier heat pump ( 40 x 40 x ~ 4mm ). The resistance is small, I can't reasonably measure it. Is there any way to determin for what voltage was it meant,...
Wednesday, 23 April 2008 - 19:33
The output current from a DAC to a base of a transistor
Hi, With my part of my exams finally over, I can finally do something useful. So I'd like to try out microstepping an unipolar stepper motor. I'd like to do something like this:...
Thursday, 10 April 2008 - 11:42
Protection diode for a BUZ11?
Hi guys, When using a MOSFET tranzistor for driving induction loads (stepper motor), is a protection diode needed? The one against the coil "discharging" back into the driver. I...
Tuesday, 8 April 2008 - 21:45
The Game of Life on an AVR and a 4x20 character LCD
Hi, I made a little implementation of the Game of Life on an AVR and a 4x20 character LCD. http://daqq.eu/index.php?show=pr... Hope you enjoy it! David Oh, and there's a video...
Saturday, 22 March 2008 - 09:22
Screw-bearing-nut-bearing-nut-metal-nut stability
Hi guys, As a motor of one of my robots died tragically, I've been designing another robot. Now, to avoid having to have a special mechanical component turned, I wanna do...
Wednesday, 20 February 2008 - 21:25
Any smart way of putting an array onto a PORT without lag?
Hi, Using an tiny2313 and an R2R DAC on PORTB, I want to make a very short impulse, that will have a certain shape. The shape will be hardcoded into the FLASH of the device. It's...
Wednesday, 13 February 2008 - 23:08
Simple LED blinkie with 9 software PWM channels
I wanted to play around with RGB LEDs, so I made this little thingie. I hope someone finds it useful. Or not. :-D https://www.avrfreaks.net/index.p... It's simple, and there's...
Wednesday, 13 February 2008 - 13:06
Best way to get a 1000V/1W out of 5V
Hi, I was wondering about the best way to get a 1000V DC (+/- 10%) (at low currents - about 1mA) out of 5V. The simplest aproach for me would be to use a 230V/6V transformer,...
Sunday, 20 January 2008 - 00:48
AVRStudio does not highlight warning
This is the smallest of bugs, but it took me a while longer to locate the #warning thingie for the preprocesor in my code without the automatic highlighting of keywords...
Monday, 14 January 2008 - 20:10
[HARD] Soldering items difficult to solder
This isn't mine, but I believe it's VERY useful... http://www.curiousinventor.com/g...
Tuesday, 8 January 2008 - 16:38
AVR impedance
Hi, I wanna use a force sensor (this one http://www2.produktinfo.conrad.c... ), which resistive. The resistance ranges from 100k to approx. 1K depending on the force. If I made a...
Tuesday, 8 January 2008 - 13:26
Which AVR for a graphical display with SD/MMC card?
Hi, This is the first time I'll be doing a graphical LCD project. I want to use this LCD (the inverted black and white version): http://sos.sk/a_info/resource/d/... I/O pins are...
Monday, 31 December 2007 - 14:49

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