This is my first post on this forum, I would like to share with you my work to get an autonomous cartridge for my Davinci AIO 1.0.

Shortly, I was facing some printing issue, I was thinking that it was due to the extruder temperature so I had to play a lot with the temperature setting and the Arduino resetter (to reprogram the extruder temp in the cartridge EEPROM). It mean that all the time I had to remove the cart, change the arduino code with my testing temperature, reprogram the chip, place the cart start again testing ...

To me it was long and boering, so I created an EEPROM Emulator for the cartridge. I made a control panel with a 4 * 7Digit LED Display and using 4 buttons (and a raspberry pico) I'm now able to setup the bed,extruder temperature, filament color and material type directly from the LED display without any computer. I can of course also reset the filament length from the display.

So now, why doesn't I share it ?

You can find all this work for free here on my github :

https://github.com/Alain94W/XYZFreeCart

I hope that it will help some of you.

Note that I only tested it on my printer (Davinci AIO 1.0 firwmare 1.1.3 from XYZ).

Of course, I will take no responsibilities in what can happen to you and your printer if you decided to use it.