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mega8 vs mega*8 (DIP) pinout differences ?
I was hacking along with an old mega8, then needed to use 2 discrete pwm so I decided to plonk in a mega88 I had around... But it's not recognized by my programmer, nor with the...
Sunday, 19 June 2011 - 14:15
New AVR simulator
I wrote a new AVR simulator that runs on linux so far, and uses gcc's header files for the IO register to simplify the generation of new devices. The goal of the project is mainly...
Monday, 23 November 2009 - 12:41
First double sided DIY PCB, mega644
finaly took the plunge and made a double side one, after a handfull of much smaller single sided "adapter boards". I used the "magazine paper" to apply the resist, and the "sponge...
Thursday, 27 August 2009 - 00:00
new mega88pa low voltage startup issue ?
New Mega88AP with entirely default fuses (no BOD, 1Mhz etc). 10k pullup to VCC on the reset line. + If I run it at 5V, all is well + if won't run if powered from a stable 2.0V/...
Monday, 3 August 2009 - 21:31
Chicken & Egg Low power AVR question
I want to power an 88pa from a supercap. What I would like is to have a way to "hold" the AVR from starting until the VCC reaches something "comfortably" over 1.8V (like, 2). The...
Monday, 13 July 2009 - 11:52
Small motorized switch ?
I'm looking to find a part that would allow me to move a lever a few mm (2, 3 max) from one position to another. Idealy, it would stay in it's last position without needing to...
Friday, 2 November 2007 - 17:34
"OverClocking" m644/m168 for avr-usb / 3.3V
I'd like to use avr-usb on a 3.3 project, but these two megas are quoted at
Monday, 29 October 2007 - 21:10
Newb and the noisy data lines
I have a prototype board with green Kynar wire to pilot a LCD. Problem is that the data lines (8) do not seem to react as the same speed, some 'lag' and I had to add a rather...
Saturday, 6 October 2007 - 10:46
FPGA, here I come!
Pfew. after quite a lot of work, I now have a workflow to program a fpga board! Got a cheapo ($75) XC3S200 board from ebay, installed the Xilinx ISE under linux (debian), got a...
Thursday, 4 October 2007 - 00:30
UT3[AB] Eagle Footprints?
Does anyone have these ? The "TQFP" of the UC3B is not .8mm pitch like the AVRs, but 0.5mm it seems, so it won't fit on my DIP adapter....
Thursday, 13 September 2007 - 19:39
AVR-USB users ?
I've been experimenting with the 'software' USB driver from obdev.at and it looks really great to be able to have a packet based communication with the host, and get rid of the...
Wednesday, 22 August 2007 - 13:13
UC3a/b sample designs ?
The great thing with AVR is that there is so many sample schematic around that you quickly get an idea of the best practices to make your own.. Does anyone know of prototype...
Monday, 20 August 2007 - 10:55