The design is clean and direct featuring off the shelf tubing and fittings, 2 pressure/vacuum switches, and an Arduino. Each one of the switches can detect pressure or vacuum, so one switch set to ...

The RF signal is also divided and sampled to measure frequency. To automate tuning, an Arduino switches a bank of capacitors and inductors in and out of the circuit. By varying the load ...

The array of switches, sensors, actuators, motors, and displays offers terrific versatility. The kit includes an excellent project guidebook. The Arduino software (called Integrated Development En ...

Watch the demonstration video below to see how the an Arduino development board has been used together with a distance sensor to trigger the tattoo machine into action. YouTube user Wildman Tech ...