Post Created date
Very unstable internal RC oscillator on mega88PA
Haven't checked OSCCAL, but would expect it to be reasonable. The frequency is right, it's just jittering terribly. This is devices right out the box. I had a mega88 on the board...
Thursday, 21 March 2013 - 11:58
SD card SPI mode write performance issue
I have seen a similar behaviour, but not had time to investigate further. I was writing single 512 byte sectors, no filesystem involved. Every 8'th write or so would be...
Monday, 3 September 2012 - 09:31
digital amplifier
Geronimo wrote:jayjay1974 wrote:Didn't they test that myth on Mythbusters long ago? YES they did! And they busted it! ;) It's a myth! I've said it before, but it deserves be...
Friday, 24 August 2012 - 17:42
digital amplifier
While it's not as fun, a call to the landlord should take care of the problem.
Thursday, 23 August 2012 - 12:54
Turn a scope into a logic analyzer for $5
Cool and very old idea. Had one like that in '78 to look at some signals for my Z80 system. 4 channels were possible. Cant remember the speed, but it was rather slow. So was the...
Saturday, 19 May 2012 - 10:40
New Site for Sharing EAGLE Libraries -- Need your input!
Quote:What do you think? Great idea! Quote:Would it be beneficial to the community? It will absolutely be a great help to the EAGLE newbie and other hobbyists. Quote:Would you...
Wednesday, 25 April 2012 - 21:19
PCB check
It will be noisy, you need serious decoupling (1nF, 10nF, 100nF) close to the VS1053. And good ground. See the datasheet.
Thursday, 19 January 2012 - 14:55
PCB fabrication Companies: My review
@plons: Looking closer at this board, there seem to be a lot of wires just going nowhere. Did you use blind vias or are this just wires that were never routed? See marked details:
Wednesday, 28 December 2011 - 18:58
PCB fabrication Companies: My review
Pretty good price and they look nice. But, are they electrically tested? After wasting $100+ in components (not to mention several hours searching for the fault) mounted on a non...
Wednesday, 28 December 2011 - 18:48
Massive PCB - Who can make it? will do 10 pcs of 6*12 for $290. Of this, $147 is tooling. If you make 100 boards, you're down to about $13 per board.
Monday, 12 September 2011 - 20:35
Please recommend a PCB fab in Europe
Why in the EU. As always, things are much cheaper in China. I use Top quality. Fast. Cheap.
Sunday, 28 August 2011 - 09:44
Resistors For LCD?
Wow! That's probably the best advice ever given in AVRFreaks history!
Tuesday, 16 August 2011 - 10:02