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Topic: low power arduino atmega8L/168V (Read 1 time) previous topic - next topic

slanbuas

I'm looking for information about low power arduino. Almost everything I find is about using an atmega8L.

Does anyone know why I cant find anything about arduino using atmega168V ? It is because it's a "new" ic or am I missing something ? (It can run at 3.3 too and I guess it can be slowed down to 8Mhz with the same modifications)

thanks

Daniel

#1
Aug 11, 2007, 12:35 am Last Edit: Aug 11, 2007, 01:11 am by Daniel Reason: 1
hi

have you looked int he playground? There is this, is it enough?
http://www.arduino.cc/playground/Learning/Atmega83-3V

I think there are some hardware differences with the 168V that would have to be accounted for in software...

edit: seems like they are pin for pin compatible inside and out. You just need to feed it all the logic-level signals at 1.8V!
AVRFreaks has a nice comparison table page here:
http://www.avrfreaks.net/index.php?module=Freaks%20Devices&func=devCompare
D

evilpaul

I have an ATmega168v-10PU chip sitting here on my desk.
I'm planning to put the Arduino bootloader on it using my USBtinyISP (http://www.ladyada.net/make/usbtinyisp/index.html), but I have a couple questions of my own.
Will I be able to use it in my NG board? I think that if I change the bootloader and the makefile so that it runs at 8Mhz it should be OK.

Daniel

yes, that and you'll need to change the crystal to 8mhz... other than that it should work fine at 5V.
What will you do to program it when you run it on 1.8V? I don't think you can run the FTDI usb chip lowers than 3.3.

D


evilpaul

Quote
yes, that and you'll need to change the crystal to 8mhz... other than that it should work fine at 5V.
What will you do to program it when you run it on 1.8V? I don't think you can run the FTDI usb chip lowers than 3.3.

D



I thought that if I set it to 8MHz that it would use its internal oscillator. I hope that would mean that I wouldn't have to mess around with changing XTALs. I wasn't particularly looking at low power applications myself, I just want to be able to use ATmega168V-10PU chips because I can get them cheap locally.

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