This is OCTOPUS Pro open source material

Customized fork of Marlin Firmware, specifically for Anycubic Mega Zero printers. Check Wiki for more details and instructions.

Online parametric lute design aid

grblHAL odometer plugin

Additional content to extend Aurora.

This is X-Plane 11 version of Yak-40, modified by 1941, P.Pranov, R.Guseynov, O.Tronov, N.Parshukov, M.Zuev)

Example code for my book on TDD with Python

PC Emulation for Adafruit_Python_CharLCD

Morse Code exhibit for the Connecticut Eastern Railroad Museum