Hacking your Adafruit Mini Thermal Receipt Printer
Look at those huge, razor-sharp image prints! You want some?
We’ve discovered that many of our thermal receipt printers…at least anything shipped in the last year or so…have a hidden capability, hardware handshaking…allowing an attached Arduino to run the printer at full-tilt. Pages feed fast and smooth, huge bitmaps don’t become garbled due to buffer overflows.
This does require a late-model printer (looks like firmware versions 2.64 & 2.68 support it, but perhaps others too) and a little bit of surgery. It’s a simple modification, just soldering on one wire, but this is a warranty-voiding procedure and might not be for everybody.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.