Build a modern twist on the classic Theremin using time-of-flight sensors and analog sound generation. No musical talent required, just a love for tinkering!

Figure 1. Arduino Uno. available to control a DC motor .The Arduino Uno is one of the most common starter boards that are being used to control multiple kinds of motors, especially DC motors, because ...

(The amp is bypassed when you plug into the audio output jack.) Digital-to-analog converter chips are expensive, so I used pulse-width modulation (PWM) to encode the stereo audio channels coming out ...

PWM pins work the same way across all Arduino boards, so you don't need to go out of your way to buy a Mega if you already have a board supporting PWM. On the Uno, Nano, and Mini, the PWM pins are ...

The machine uses a ‘grbl’ controller, which has an Arduino-based circuit that includes multiple outputs, including a powerful 24V pwm signal that is generally used to drive a 60-80W spindle motor..

According to duty cycle calculations, this power signal is equivalent to a mean voltage for the motor. For instance, if the amplitude of the PWM signal is 18 V and the duty cycle is 40%, the mean ...

This project uses the Arduino Uno PWM output to realize a fully isolated analog output with a range of 0..5 V or more. The use of an averaged PWM signal is not comparable with a real DAC, but it has ...

// Enable asynchorous, complementary output, dual-slope PWM at 100kHz on 2 channels (0 to 1), at 50% duty cycle default // 4 PWM outputs on 2 complementary channels on pins D34, D35, D36 and D37 for ...

Pin 9 generates a PWM signal using a time-honored technique. Suppose you want to generate 20/255 (about 8% duty cycle). You take an 8-bit accumulator and add 20 to it repeatedly.