An ultrasonic sensor is a device that uses sound waves to measure the distance to an object. It works by sending out a sound wave at a high frequency (typically 40 kHz) and then listening for the echo of the…
Read MoreAn alcohol sensor is an electronic device that detects the presence or concentration of alcohol in the atmosphere. Alcohol sensors are used in a variety of applications, including environmental monitoring, industrial safety, and medical diagnostics. How does an alcohol sensor…
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An LED module is a light-emitting diode (LED) that is packaged with a circuit board and other components. LED modules are used in a variety of applications, including lighting, signage, and displays. working of an LED module An LED module…
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Servo Motor Working Principle A servo motor is a type of motor that is used to control the angular position of a shaft. It does this by sending a series of pulses to the motor, with the length of each…
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DC Motor Interface A DC motor is an electric motor that converts direct current (DC) electrical energy into mechanical energy. The rotating shaft of a DC motor can be used to power a variety of devices, such as fans, pumps,…
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Interfacing a relay module with Arduino A relay module is an electronic circuit that uses a small electrical current to control a larger electrical current. This is done by using an electromagnet to switch the connections between two or more…
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Interface of a Rotary Encoder Module A rotary encoder module is a small electronic device that converts mechanical rotation into electrical signals. It typically has three or four pins, which are used to output the encoder’s signals. The most common…
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A humidity sensor is a device that measures the amount of water vapor in the air. It does this by measuring the electrical resistance of a sensor material. The sensor material is typically a hygroscopic material, such as a polymer…
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A moisture sensor is a device that measures the amount of moisture in a substance. It does this by measuring the electrical resistance of a sensor material. The sensor material is typically a hygroscopic material, such as a polymer or…
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A gas sensor is a device that detects the presence of gases in the air. It does this by measuring the change in electrical resistance or capacitance of a sensor element when exposed to a particular gas. Working of gas…
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An ECG sensor, or electrocardiogram sensor, is a device that measures the electrical activity of the heart. It does this by placing electrodes on the skin and measuring the voltage changes that occur when the heart contracts. Working of ECG…
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