Using my Arduino as a Serial TTL - USB convertor

[shanevi]

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...

Arduino as Serial-USB interface to PIC32 project

ttl.jpg (67.75 KiB) Viewed 23549 times

[parkview]

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

[shanevi]

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