Question: what are the major differences on the r1 and r3, and if I can run r3 sketches on r1?
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Author Topic: Arduino uno R1 and Arduino uno R3 Questions  (Read 5384 times)
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Hey guys,

     I'm new to arduino and just bought an uno r1, I'm wondering about the differences between the uno r1 and uno r3. Can I run uno r3 sketches on uno r1? And is there any big differences? This will really help. Thanks!  smiley-lol

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Edison Member
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Consider them the same - Minor differences on design - but totally the same functionally.

http://www.uk-pcb.co.uk - My UK Based PCB Fab & Assembly Company
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All differences are explained here, grasshopper:


Biggest change is the extra diode from reset pin to +5V, supposed to keep reset from causing lockups.

Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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