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Topic: arduino on breadboard (Read 1 time) previous topic - next topic


hi guys...
I have an arduino ATmega 8... say if i want to make a arduino 4m scratch and i have the Atmega 8 chip alone.... wat r the things i would need more to make one myself on a breadboard? would i be able to program the IC the same way in breadboard as wen we do it in the arduino board??
i have already seen this.... but not much help showing the ckt...
can i replace atmega 8 with atmega 16 or atmega 168 without changing anything??
thanx in advance...  :)


I dont think you followed the link to the full article just below the description.

Once you have built one theres no reason not to be able to do everything you would normaly do with a proffesionaly built Arduino board.

Ive just built one from this:
It took about half an hour.
Im waiting for a usb to ftdi adaptor so I can program in situ.
Once I have that its all done and Ill transfer it to stripboard with a realtime clock circuit for something I want to build.


thanx buddy... :)  can anyone plz tell y we r using a oscillating crystal??? wats its use???


The atmega has an on board crystal but it only runs at 8mhz I beleive.
To run at 16mhz it needs the external crystal.

If you are asking why its has a crystal at all.
It provides the ticks that make a microcontroler work.



It doesn't have a crystal built in; it does have an RC (resistor-capacitor) oscillator.  An RC oscillator is much cheaper, much less precise, and more susceptible to temperature changes than a crystal.


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