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916  Using Arduino / Programming Questions / Re: ATtiny! Damn that thing is tricky on: April 13, 2012, 08:09:53 pm
I've got that same one, works great although its not the lastest version, and you can't update it
not that that affects anything still works on all my boards
917  Using Arduino / LEDs and Multiplexing / Re: Elimination of PWM noise on LED on: April 13, 2012, 07:43:19 am
Perhaps look into raising the pwm rate to a level that's not audible?
918  Using Arduino / Microcontrollers / Re: requirements and limits of 8Mhz 3.3v on: April 13, 2012, 05:47:21 am
Well this particular project I just want to light up a few leds in some patterns which normally isn't that hard except I want to do it on my arm lol
my plan is to use that silver conductive ink pen(which I still need to get)and draw traces on my arm for the atmega328 and about 10 smd leds and smd resistors
maybe a soft pot for input to change patterns, and thinking about some button to go in and out of sleep mode,(or just take a leg off the battery
bending the pins out on a 328 wont be too bad and the smd stuff is practically meant for it, but smd caps are quite small and idk how id work with a crystal
I was thinking this kinda thing would be perfect for halloween(or those crazy parties), but I wanna try it out just to see if its possible, I haven't seen much similiar on the net and personally I think that would be the best clone board out there: the (me)duino
919  Topics / Device Hacking / Re: New user, question about keyboard/mouse input. on: April 12, 2012, 10:15:36 pm
Lmao I've done that with a 22 pin connector, solder and fill, and wrap very professional  smiley-lol
920  Topics / Device Hacking / Re: hacking a dsc or ademco alarm keypad on: April 12, 2012, 10:12:44 pm
I imagine you could just do serial.begin(4800)
If you get any actual data on that let us know, I took apart they keyspads I got but I get more every so often and would love to just hook up 4 wires and not have to touch the inside or rewire my own controller in the same space
921  Using Arduino / Microcontrollers / Re: what is the recommended isp for general use? (328 and 2560) on: April 12, 2012, 10:09:35 pm
Even if its a small sketch it wouldn't work? Where does the 128kbs size apply to?
922  Using Arduino / Microcontrollers / Re: requirements and limits of 8Mhz 3.3v on: April 12, 2012, 10:08:00 pm
Definetly, im looking into a very mobile project where number of components makes things alot harder, and caps and a crystal would be nearly impossible, and 5v isn't an option, need direct from a lipo
 so happy how millis still works the same, that makes my life that much easier
again thanks that made my first voyage under 5v so much quicker, would've taken me a while to spot the divide by 8 thing
923  Using Arduino / Microcontrollers / Re: requirements and limits of 8Mhz 3.3v on: April 12, 2012, 08:04:27 pm
Awesome it was the divide by 8, fixed it and uploaded bootloader and immediatly noticed proper blinking rate at the start
Uploaded blink with the ide(which uses 57600 whe. Pro mini 3.3v is selected)
success! Than you very much for the perfect advice
924  Using Arduino / Microcontrollers / Re: full 23 i/o pins on atmega328 on: April 12, 2012, 07:53:37 pm
I think those are for the smd version which has 2 extra analog pins
925  Using Arduino / Microcontrollers / Re: requirements and limits of 8Mhz 3.3v on: April 12, 2012, 07:29:15 pm
Ill try the 57600 when I get home in a few, here's my fuses
Code:

avrdude -p m328 -c usbasp -U lfuse:w:0x62:m -U hfuse:w:0xd7:m
Delay(1000) seemed so long so I figured if I put it at 250 it'd come out to 500 but it seems to be 1000
millis() runs on a timer which is provided by the clock right? so millis should be 1/2 fast which would be easy to adjust in my programs because I have alot of timed stuff, but if its not 1/2 and some other number it'll be a bit annoying
im uploading the compiled blink sketch with the usbasp since the optiboot isn't working, I tried selecting pro mini and burn bootloader with the ide but it just blinks afterwards and doesn't respong, could be the timing again
If my atmega328 happens to be one of those at the end of +/- 10% off is there a baud rate that will accept that error? Is there a way I can adjust the calibration without a different programmer
926  Using Arduino / Microcontrollers / Re: requirements and limits of 8Mhz 3.3v on: April 12, 2012, 07:06:50 pm
I changed the fuses to 8Mhz and uploaded that bootloader however the ide isn't talking to it... the board just doesn't respond
checking my fuses, I just did what the fuse calculator on the atmel page said for 8Mhz int osc reset enabled,  serial programming enabled
what can it be?
and btw how much slower does 8Mhz make millis? I have delay(250) and its like 16'hz delay(1000)
927  Using Arduino / Microcontrollers / full 23 i/o pins on atmega328 on: April 12, 2012, 05:55:54 pm
This is a question of curiousity
I know there are a total 23 I/o on the atmega328
20 are normally accessible to an arduino board, but on a breadboard what would it take to access the others? I know 1 is the reset and is not a good idea due to the high voltage reset needed afterwards,
the other two I guess are the xtal? If its running 8Mhz internal oscillator are those pins free to be I/o? How would I access those without direct port manipulation? Does the ide support it?
928  Using Arduino / General Electronics / Re: SMT oops on: April 12, 2012, 05:42:53 pm
Id suggest 30 gauge stranded wire,  it'll be a pain and how are you gonna mount that now?
929  Using Arduino / General Electronics / Re: Using a car battery to run Arduino for about six thousand years, need to design on: April 12, 2012, 05:28:04 pm
Why not just use a lm317 as a constant current source? I made myself a charger for my 12v 4.5a batteries, set for 13.5v,add a heatsink and let it go,
930  Using Arduino / Microcontrollers / Re: requirements and limits of 8Mhz 3.3v on: April 12, 2012, 05:16:01 pm
Awesome! Thank you, that saves me alot of time as im still just getting the hang of compiling and that whole process
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