A Theremin utilizing a passive buzzer using tone(); and the SR04 ultrasonic distance sensor
Project tutorial by squrril
Use at your own risk!
by Konstantin Dorohov
This is 3-axis CNC plotter/engraver based on GRBL software and 2020 aluminum extrusions. Low-cost engraving and PCB manufacturing dual side.
Project tutorial by Amit Nandi (BigWiz)
A mini CNC machine made out of cheap materials with a stunning result.
Project showcase by Mr-M
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