Using my Arduino as a Serial TTL - USB convertor

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shanevi
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Using my Arduino as a Serial TTL - USB convertor

Post by shanevi » Fri Oct 31, 2014 10:27 am

Probably already known by all but I thought it was quite a neat dirty hack.... :)

I didn't have a spare Serial to USB convertor on hand for a recent project. So decided to try my arduino mega (Should be able to do with others also)

connect wire from Reset to Ground. This will hold all Atmel pins in high-imp tristate

Use TX/RX and +5v/+3.3V/Gnd to project using serial IO
USB into computer

Connect up using whatever means you use. PuTTY etc...

ttl.jpg
Arduino as Serial-USB interface to PIC32 project
ttl.jpg (67.75 KiB) Viewed 1794 times

parkview
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Re: Using my Arduino as a Serial TTL - USB convertor

Post by parkview » Fri Oct 31, 2014 9:22 pm

Nice one. No, I didn't know that.

shanevi
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Re: Using my Arduino as a Serial TTL - USB convertor

Post by shanevi » Sat Nov 01, 2014 1:05 pm

I think ou can do same with Uno etc...
in that case should be able to either remove the DIP IC, or do the same.. Tie reset to Ground.

Tight budget always allows one to think further outside the box ;)

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