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Reading a messed up keyboard
Hi, So, I messed up a little "keyboard" design. I wanted to scan four BCD switches using one PORTD. While designing it, I didn't remember that I should use the matrix for multiple...
Saturday, 28 July 2007 - 12:33
Do my PSUs like The Button?
Hi, I have a strange question: A long time ago, my monitor failed (big CRT). The guys in the shop took it and said that this is the first failure of that type. When they gave me...
Wednesday, 25 July 2007 - 20:46
What's so errorish on placing a via on a pad?
Hi, I've got a question: When using 1206 resistors in board design I place a via to the bottom layer (from the top layer) within one of the pads. The DRC says that it's an Bad Via...
Saturday, 21 July 2007 - 19:36
How to set an alarm?
Hello guys, I have a question. I'm making an alarm clock which switches on one motor for a constant time. There will be 4 alarms. THe clock will have no display. I was thinking of...
Saturday, 21 July 2007 - 08:37
Will my unconnected servo do something strange?
Hi, I have a little question: How will the input pin of the servo motor (normal, hobbyist servo) react when: The motor is disconnected by the Si4435 transistor from the +5V net (a...
Tuesday, 17 July 2007 - 16:06
Parralelifying two polyswitches...
In a universal board we're making there will be a selectable fuse maximal current. I wanna use polyswithces. Now. If I want to have, say, 5A, but the biggest ones I can get are 2...
Friday, 13 July 2007 - 16:45
Simple library for the TLC7528 DAC
Here's a somewhat simple library for the TLC7528 DAC. I know, I know, the DAC is very simple to use, but I hope someone will make good (or evil) use of it... /* Copyright David...
Friday, 13 July 2007 - 16:35
5V tollerant AVR?
Hi, I'm doing a little project, and the AVR in it is running at 3.3V (well, will be that is) and a part of the device wants 5V. Now, according to the general IO pin schematic,...
Saturday, 7 July 2007 - 15:26
A concealed codelock!
Well, I finally finished documenting my latest creation: https://www.avrfreaks.net/index.php?m... This is the project folder, including a brief description. Photos of the complete...
Friday, 6 July 2007 - 12:32
Will rubber kill my dragon?
Hey guys, just another question: I want to place my dragon on some stands ( like this : http://www.moneymachines.com/rub... ). They are selfadhesive (have some glue on their other...
Thursday, 5 July 2007 - 15:34
[HARD] Make a piezo go louder without any extra parts
Piezotransducers are cool parts: They can make sound! They are small, consume virtually no energy while they are inactive (in the sense if you feed them a square wave they will...
Tuesday, 3 July 2007 - 11:21
Quality? Beat this...
My glue gun started making funny noises yesterday, so I decided to take a peek inside the bugger. Guess what I found! A new low in quality. (see picture). The label on the device...
Friday, 29 June 2007 - 13:25

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