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 ...

Posted in Arduino Hacks, Tool Hacks Tagged arduino, dahlander, DIN rail, high voltage, motor, three-phase ← Happiness Is Just A Flaming Oxy-Fuel Torch Away The Tiny, Awesome Class D Amp → ...

The ‘unhackable’ switch, which resembles a MIDI sequencer input, runs on an Arduino Nano Every and uses a relay to directly control the power state. Instead of having one keep-alive button ...

The Arduino Uno board detects the tattoo artist’s gestures via a distance sensor, and signals the machine with an on or off output. Watch this video on YouTube. Source: AH : WTech ...