Learn Arduino the practical way. From basics to real projects with sensors, motors, displays, serial, PWM, I²C/SPI, interrupts, and robust C/C++ code.
Learn how to use the KY-040 Rotary Encoder Module with Arduino. This device converts angular position into a series of digital pulses, allowing for precise control of menus, volume, or rotational position.
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Learn how to use the KY-039 Heartbeat Sensor Module with Arduino. This module measures the change in blood volume under the skin using an infrared light source and phototransistor—a technique called Photoplethysmography (PPG).
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Learn how to use the KY-038 Sound Sensor Module with Arduino. This module uses a microphone to detect sound and provides two outputs: a digital ON/OFF signal for noise events and a raw analog value representing sound intensity.
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Learn how to use the KY-037 High Sensitivity Sound Detection Module with Arduino. This module, an enhanced version of the KY-038, is designed to detect fainter sounds.
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Learn how to use the KY-036 Metal Touch Sensor Module with Arduino. This module detects touch by measuring the change in electrical conductivity when a conductive material, usually a person’s finger, makes contact with its exposed pads.
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Learn how to use the KY-035 Analog Hall Magnetic Sensor with Arduino. This sensor outputs a variable analog voltage proportional to the magnetic field strength.
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Learn how to use the KY-034 Automatic Flashing Color LED Module with Arduino. This unique module contains a single integrated circuit (IC) that causes the LED to automatically cycle through various colors and flash patterns when simply supplied with power.
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Learn how to use the KY-033 Line Tracking Sensor Module with Arduino. This sensor is crucial for line-following robots, using an infrared light source and a phototransistor to detect differences in light reflection between light (white) and dark (black) surfaces.
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Learn how to use the KY-032 Infrared Obstacle Avoidance Sensor Module with Arduino. This module is a crucial component in robotics for non-contact object detection and provides a clean digital ON/OFF signal.
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Learn how to configure Arduino digital input pins to interface with the KY-031 Knock Sensor Module.
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