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Topic: DIY Arduino problem (Read 1 time) previous topic - next topic

Vincent19

What will happen if I did not put the 100nF cap and 22pF cap ?

Thank you

eried

Bit more noise. For a real example: http://content.screencast.com/users/erwinried/folders/Jing/media/32aee3d7-e4c4-43ff-9615-4cc574a24999/2012-07-07_1524.png compare blue with red, first I didn't want to add a cap to the power, microprocessor rebooted itself randombly sometimes.

The regulator was to remove the spikes :D
My website: http://ried.cl

Vincent19

Ok, I face that problem too..Hahaha..reboot sometimes. Then what is the importance of the 22pF cap ?

eried


Ok, I face that problem too..Hahaha..reboot sometimes. Then what is the importance of the 22pF cap ?


The same, it is one of the properties of a cap, but for the oscilator. In my tests, not that important compared to the cap in the power.
My website: http://ried.cl

Vincent19

So, the minimum circuit for an arduino based development board is a 16MHz crystal and the 100nF cap for power supply and pull up resistor for RESET pin ?

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