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Using the Mini Thermal Printer

by jivings on Mon Oct 08, 2012 2:23 am

I've purchased a Mini Thermal Printer for my Raspberry Pi. The documnetation states:

This printer is ideal for interfacing with a microcontroller, you simply need a 3.3V to 5V TTL serial output from your microcontroller


Since the serial pins on the GPIO output at 3.3V I assumed that I could just connect the printer directly to the pins and it would just work without a protection circuit. Is that a naive assumption? What else do I need to do in order to use the printer?

Thanks!
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Re: Using the Mini Thermal Printer

by adafruit on Mon Oct 08, 2012 4:03 pm

we have seen people get it working, the logic levels are fine to connect but there's a bit of code you need to interface with it and we don't have a tutorial, or recall where a tutorial could be found. you might have to google around!
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