Post Created date
AVRISP Firmware problem
John, Thanks for your reply. Could you please explain how to do a manual downgrade.. Cheers Dave
Wednesday, 4 May 2005 - 22:50
Someone please HELP!!
SteveN wrote:So, the OP will either end up flipping burgers or be the head of the UN...but probably not an engineer :-) Sorry, couldn't help myself. ...Or the president of the...
Monday, 2 May 2005 - 04:15
troubleshooting an lcd
Some LCDs (your one included) require a negative voltage to drive the contrast. You could design your own charge pump circuit to generate this or use a purpose designed IC such as...
Thursday, 21 April 2005 - 22:22
Generate Sound
Have a look at the specs for the piezo. Most have a couple of resonant frequencies. If you drive those frequencies you'll get the most noise out. Or toggle between them... Dave
Thursday, 14 April 2005 - 22:32
PLED -- the Holy Grail of display technology?
theusch wrote: How was the compatibility with HD44780? Lee The one that I've had a play with from Densitron had an HD44780 compatable controller and it seems to work fine. They...
Thursday, 14 April 2005 - 04:45
please comment on this board
Why don't you buy some Veroboard (or similar) and actually build a prototype before you get a pcb made? :idea: Dave.
Wednesday, 13 April 2005 - 23:20
SPI and dataflash help
See appnote AVR335. Dave
Monday, 11 April 2005 - 02:55
MMC cmd1 problem
Chip Select is active low. Dave
Friday, 8 April 2005 - 01:58
Fix damaged Atmel ISP programmer
Depends on what you mean by damaged. If you've run over it in your car we probably won't be able to help. What are the symptoms? Dave.
Thursday, 31 March 2005 - 23:10
local variable problem
As Bob suggested, data2 only exists while you're in function(). Once you exit function(), the value in the location where data2 was stored could be anything. Have you checked the...
Thursday, 31 March 2005 - 02:23
Solar powered AVR?
microcarl wrote:Smileymicro, Sure, the LED shining on a solar cell as a power source would probably work, My whole point was ther has to be an external, replenishable power...
Tuesday, 22 March 2005 - 04:38
My first ever circuit board - please comment
MaxK wrote:jesper wrote:A few comments: * Try to stick to 45 degree steps in the layout, not that it really matters, but it's neater. Jesper, you are aware of the function to use...
Tuesday, 22 March 2005 - 04:29