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Topic: My standalone arduino, quick overview (Read 3 times) previous topic - next topic

C220amg

Hi,

I was wondering if somebody could have a very quick look on my standalone scheme. This is my first, more complex, scheme that I've made and I have put some work into it.
Normally I wouldn't ask but it would be sin if my pcb doesn't work because of a small or dumb mistake in the scheme.  :smiley-red:

It is basically a standard Atmega328P-au by which I have added a few sensors such as the ADXL345 accelerometer, ITG-3200 and a micro sd slot with a low level shifter 74HC4050D.




Many thanks in advance!
Kindest regards,
Niels

Grumpy_Mike

It's a bit small but looks fine.
The two caps on the crystal should be 22pF rather than 10pF but that is not vital.

C220amg


It's a bit small but looks fine.
The two caps on the crystal should be 22pF rather than 10pF but that is not vital.


Thanks!

Well the capacitors are actually 18pF because the crystal I ordered has this as load capicity. Is it still from importance to change to 22pF? It seems illogic to me.

Regards Niels,

Grumpy_Mike


C220amg

#4
Apr 02, 2012, 09:52 am Last Edit: Apr 02, 2012, 09:55 am by C220amg Reason: 1
I just uploaded a bigger image of the schematic, hopefully this one is a bit more clear!



Regards,
Niels

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