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Shrinking Arduino Uno

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(@gamen)
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Joined: 4 years ago
Posts: 11
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Hi - 
I read the article on shrinking Arduino One projects. 
On other sites I have found there is an option of leaving out the clock crystal, using the internal clock. 
Thus one could leave out all capacitors and resistors also. 
However, this was only done for burning a bootloader in those projects. 
Can this be done for uploading sketches also? 
 
Does it mean you are limited to 5V input? 
What other considerations should be taken? 
 
This topic was modified 7 months ago by Gamen

   
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(@dronebot-workshop)
Workshop Guru Admin
Joined: 5 years ago
Posts: 1085
 

Yes, the only issue is that the speed won't be the same, as you need to run it at 8MHz, not 16. Also, without a crystal the timing will drift, so things like ultrasonic sensors won't be measured as accurately.

And your Blink sketch will blink at half-speed (actually, that probably isn't true, as you can set your compiler to 8MHz, and it will compensate).!

😎

Bill

 

 

This post was modified 7 months ago by DroneBot Workshop

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