In this Arduino Tutorial we will learn how the HC-SR04 Ultrasonic Sensor works and how to use it with the Arduino Board. You can watch the following video or read the written tutorial below.

This demo will show you how to use Sound Sensor, to indicate the intensity of sound, we need a LED Bar. Hardware Required:： Arduino Sound Sensor LED BAR Circuit： The output of sound sensor is analog ...

How can a seeing-impaired person select clothes with matching colors in the morning? Well, by converting the color information into a sound signal, which is the idea behind this project. The color is ...

Users will need to provide their own Arduino Pro Mini and the hardware features a 1.4 W, 8 Ohms, Texas Instruments TPA2005D1, 14 bit ganged PWM, PWM 8 kHz low pass smoothing filter all powered by ...