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Discussion Title Created date
I2C temp sensor reading several degrees low
Hi folks, I'm working with an SE95 temp sensor which communicates through the I2C interface. This sensor shoud bet +-1 degree celsius accuracy but I'm getting a readout that is...
Sunday, 25 May 2008 - 22:52
Ribbon Cable - What is the max current?
Hi folks, I've got some ribbon cable I'd like to use to jump from one board to another. The total length should be about 3 inches and I'm looking to put 5v through at a maximum...
Thursday, 22 May 2008 - 19:43
LED Driver: HEF4794B -- how much can it source?
Hi Folks, I'm not finding the information I need in the datasheet for this part... probably because I lack the mad skills needed to find it. http://www.semiconductors.com/acrobat/...
Wednesday, 21 May 2008 - 08:19
Please contribute PCB layout pointers
Hi Folks, I'm working on my first PCB design for etching. I have read a bunch of threads here as well as write-ups elsewhere. This board will control an LCD display using a 5-way...
Wednesday, 7 May 2008 - 17:34
What copper clad PCB should I purchase?
Hi Folks, I'm gearing up to etch my first PCB. Today I picked up a drill press attachment for my dremel and I will soon pick up the HCL to make cupric chloride for the etchant. I...
Tuesday, 6 May 2008 - 19:42
Fine tuning a crystal on TOSC
Hi folks, I'm working with ATmega8 and using a 32.768 kHz crystal on the TOSC pins. I've noticed that the clock runs about 3 seconds behind over a 24 hour period. I wanted to...
Sunday, 4 May 2008 - 17:18
Multiple arguement in a 1 dimensional array
Hi Folks, I'm trying to understand some code. This is the LCD menu example program from the winavr avr-gcc tutorial. You can find that tutorial here: http://winavr.scienceprog....
Monday, 21 April 2008 - 14:31
LED Marquee Concepts
Hi Folks, I'm playing around with a few project ideas and I think I'd like to build an LED marquee sign. Probably 8 rows by a large number of columns (80 columns perhaps)....
Friday, 18 April 2008 - 16:28
XBMC "big clock" on AVR
Hi folks, I'm an XBMC (xbox media center) user and I like to keep up with the recent svn builds. Recently, code was added to display a clock over several lines of an LCD display...
Thursday, 17 April 2008 - 02:12
Can you demystify this macro?
From danni debouce code: TCNT0 = (u8)(s16)-(XTAL / 1024 * 10e-3 + 0.5); // preload for 10ms XTAL is 1MHz. I understand that this takes the 8-bit timer counter and subtracts...
Thursday, 10 April 2008 - 14:37
[TUT] [HARD] [SOFT] The Dragon Rider 500
Hi Folks, I recently acquired a Dragon Rider 500 as a birthday gift. This is an excellent product I think really completes the AVR Dragon as far as functionality. I have just...
Tuesday, 8 April 2008 - 17:27
Let's Play: Name that SMD component
Hi folks, I was cleaning out the upstairs and found a usb device left here by a past tenant. I have no use for it in it's current state so decided to harvest the components from...
Monday, 24 March 2008 - 15:33

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