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Arduino Tutorial: HC-SR04 Ultrasonic Distance Sensor

Arduino Tutorial: HC-SR04 Ultrasonic Distance Sensor

The HC-SR04 measures distance by timing how long a sound pulse takes to bounce off an object and ret...

Arduino Tutorial: RGB LED Color Mixing

Arduino Tutorial: RGB LED Color Mixing

An RGB LED is really three LEDs (red, green, blue) in one package. By controlling each color's brigh...

Arduino Tutorial: Buzzer Sound Alerts with tone()

Arduino Tutorial: Buzzer Sound Alerts with tone()

Adding sound to a project — an alert tone, a simple melody, a confirmation beep — is one...

Arduino Tutorial: 16x2 LCD Display with I2C

Arduino Tutorial: 16x2 LCD Display with I2C

A 16x2 character LCD lets a project display real information — sensor readings, status message...

Arduino Tutorial: PIR Motion Sensor Alarm System (Mini Project)

Arduino Tutorial: PIR Motion Sensor Alarm System (Mini Project)

This tutorial combines digital input and two kinds of output into a real mini project: a motion-trig...

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