Seems unlikely. If it smoked, you did damage. Nothing in the semi world 
gets hot enough to cause smoke without some damage. 
Revisit your circuit. If it hasn't failed yet, it will.

Terry

On Sunday, March 12, 2017 at 10:19:55 PM UTC-5, Paul Andrews wrote:
>
> Tell me about it :-/ I had smoke coming out of something the other day. 
> Amazingly nothing was damaged. Live and learn!
>
> On Sunday, March 12, 2017 at 10:17:17 PM UTC-4, gregebert wrote:
>>
>> *If everything is properly connected*, even an internal short in the 
>> 74141 that leaked high-voltage back to the Arduino, which seems unlikely, 
>> would be limited to a few mA so it's unlikely to cause damage.
>>
>> Your biggest risk is a hookup error, or possibly ESD damage to the 
>> Arduino from mishandling.
>>
>

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