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Welcome to the MINI404 wiki! This is where I will try to keep documentation for the intricacies of using the simulator. If something seems out of date or is not working, please feel free to open an issue and I'll do my best to address it for you.

Be sure to check out Getting Started if you are looking for info on how to compile or contribute.

This is a list of features and functionality present in MINI404.

Note that "works" means the part is functional for the current needs of the simulation, not that it is fully implemented in all aspects or behaviours.

Hardware Simulation Features

Name	Description	Status
Bootloader/.bbf	Used to load stock images	✔️ Works
CDC (USB)	Serial USB control	✖️ Not working. Use a workaround to re-route serial to UART 1 and then use the serial VC.
EEPROM/flash	persistent storage	✔️ Works (-pflash, -mtdblock, see Flash Storage Persistence)
Ethernet	LAN connectivity	✔️ Appears to work, see Ethernet)
Fan	Simulated fan component	✔️ Works - with tachometer feedback
Heater	Simulated heater cartridge	✔️ Works, feeds back temperature to thermistors.
IRSensor	IR-based MKxS sensor	✔️ Works.
MINDA	Z-endstop sensor	⚠️ Not implemented - currently using Z min "stallguard" as MINDA input.
Print Visualization	Viewing motion/print	⚠️ Works in conjunction with MK404 IPCPrinter. Non-blocking so complex prints may not work well at this time.
RotaryEncoder	Input knob	✔️ Works
st25dv64k	I2C EEPROM chip	✔️ Works
st7789v	SPI Display driver	✔️ Works
Thermistor	Assorted temperature inputs	✔️ Works
TMC2209	Stepper driver	✔️ Works ⚠️ Not all registers/features implemented, many are transparent to the simulator.
w25q64jv	SPI flash chip	✔️ Works
USB	Flash drive for gcode input	✔️ Works

Selected screenshots

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