General discussion • Re: Pico as VERY simple printer controller

I have two very general ideas, the Pico either needs a driver for the max232 (unless it does not require this)

It doesn't. The chip is a simplish voltage converter. You power it from 3.3V and it has two sets of converters for Tx and Rx, that convert between 3.3V logic and RS232 levels.
The Pico can drive it with its usual UARTs.

and a driver for the ESC/POS TSPL then the input file data.

Both of those languages have some form of bitmap mode, which is what the CUPS drivers usually use. But the OP said about generating a Raw printer image file, which, if the right drivers are used at the start, will already be in ESC/POS or TSPL format, so no driver required for the Pico, just shove the file out of the UART and it should print.

Statistics: Posted by rpdom — Fri Feb 02, 2024 8:22 am

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