When reed switch is opened, pin 2 of Arduino goes high with the help of the pull-up resistor R2, and the alert signal is available through the piezo-speaker PZ1 (not an active piezo-buzzer). At the ...

Arcade Game Claw Machine Uses Arduino Mega, Nema 17 stepper motors (1 for X axis, 2 for Y axis, 1 for Z axis) and hobby servo for operating the claw mechanism. 2 endstop switches for X and Y axes, 1 ...

There are a bunch of low cost cnc engraving machines loosely called ‘3018’ as they cut material up to 30 x 18cm, and the same parts are used in two smaller sizes down to a 1610. They are not the ...