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Learn how the ACS712 Hall-effect current sensor module works and how to wire it to Arduino for accurate AC/DC current measurement. Covers pinout, sample code, calibration, and troubleshooting for the...
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Learn to wire, calibrate, and code the capacitive soil moisture sensor V1.2 with Arduino. This beginner-friendly guide covers pinouts, sample code, and calibration tips for reliable 0-3V analog readings in...
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Learn how to wire and program the KY-040 rotary encoder module with Arduino. This user guide covers pinout, wiring connections, rotation direction detection, pushbutton switch usage, and includes ready-to-use Arduino...
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Learn how to use the BMP180 GY-68 barometric pressure and altitude I2C sensor module with Arduino. This user guide covers pinout, wiring connections, library installation, sample code, specifications, and troubleshooting...
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Learn how to use the MQ-135 ammonia, NOx, alcohol, benzene, smoke, and CO2 gas sensor detector module with Arduino. This user guide covers pinout, wiring, specifications, example code, schematic, and...
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Learn how to use the MQ-9 carbon monoxide, methane, and LPG gas sensor detector module with Arduino. This user guide covers pinout, wiring, specifications, example code, schematic, and a comparison...
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Learn how to use the MQ-7 carbon monoxide (CO) gas sensor detector module with Arduino. This user guide covers the unique heating/measurement cycle, pinout, wiring, specifications, example code, schematic, and...
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Learn how to use the MQ-2 smoke, hydrogen, butane, LPG, and methane sensor detector module with Arduino. This user guide covers pinout, wiring, specifications, example code, schematic, and tips for...
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Learn how to use the MQ-5 methane, LPG, and natural gas sensor detector module with Arduino. This user guide covers pinout, wiring connections, specifications, example code, schematic, and tips for...
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Learn how to use the RCWL-0516 Microwave Doppler Radar Sensor Module for motion detection. This guide covers how Doppler radar works, pinout, onboard configuration pads (sensitivity, trigger time, daylight inhibit),...
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Learn how to use the HC-SR04 Ultrasonic Distance Sensor with Arduino. This guide covers how ultrasonic ranging works, pinout, wiring, distance calculation formulas, Arduino code examples with and without the...
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Learn how to set up and use the HC-SR501 PIR Motion Detector Sensor Module with Arduino. This guide covers how PIR sensors work, pinout, wiring, sensitivity and time delay adjustment,...
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