Mini Thermal Printer button custom event

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mihaigeorge
 
Posts: 6
Joined: Thu Mar 27, 2014 4:00 am

Mini Thermal Printer button custom event

Post by mihaigeorge »

Hello,

I would like to know if there is a way to listen on Arduino when the printer button is pressed.
The default event is to push slightly the paper, but I would be interested if it produces some signal to one of the RX/TX pins from the board.

I am referring to the button that is just above the green led:
http://www.adafruit.com/index.php?main_ ... ge&pID=597

Thank you!

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adafruit_support_rick
 
Posts: 35092
Joined: Tue Mar 15, 2011 11:42 am

Re: Mini Thermal Printer button custom event

Post by adafruit_support_rick »

The printer user manual says nothing about anything like that coming back on the serial line. You could always try it emprically, and see if anything is transmitted.

Have a look at the parallel (LPT) interface on page 6 of the user manual. One of those like may be your button, in which case you could probably bring the signal back as a digital input to your Arduino. You'll have to see what the voltage of the signal is, and make sure it's within the 5V limit of Arduino GPIO inputs.

http://www.adafruit.com/datasheets/A2-user%20manual.pdf

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