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Learn how to set up and program the PJRC Teensy 4.1 ARM Cortex-M7 600MHz microcontroller development board. This user guide covers Arduino IDE setup, pinout reference, wiring, example code, memory...
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Complete user guide for the 5V 4-channel SPDT power relay module with 250V/10A switching capability. Includes pinout diagram, Arduino wiring instructions, sample code, specifications, troubleshooting tips, and safety guidelines for...
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Setup guide for the 2-channel 5V optocoupler-isolated SPDT relay module. Covers pinout, JD-VCC jumper configuration, Arduino wiring, sample code, 3.3V logic compatibility, relay contact ratings, safety warnings, and troubleshooting tips.
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Learn how to use the MAX232 (SP3232) RS232 to TTL converter module with onboard LED indicators. Covers pinout, wiring to Arduino and other microcontrollers, RS232 basics, sample code, and troubleshooting.
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Complete user guide for the 5V 10A 1-channel SPDT power relay module. Includes specifications, pinout diagram, Arduino wiring, sample code for relay control, safety tips, and troubleshooting for beginners and...
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Learn how to use the XL6009 adjustable boost buck step-up step-down DC-DC converter module. This user guide covers wiring, specifications, output voltage adjustment, pinout, troubleshooting, and practical tips for powering...
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Learn how to use the XL6009 adjustable boost step-up DC-DC converter module. This user guide covers wiring, specifications, output voltage adjustment, pinout, troubleshooting, and practical tips for powering your 6V–48V...
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Learn how to set up and use the PCA9685 16-channel 12-bit PWM servo driver module. This guide covers wiring for Arduino and ESP32, servo and LED code examples, I2C address...
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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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Learn how to use the 650nm 5mW Red Line Laser Diode Module. This guide covers the critical case isolation warning, safe mounting techniques, wiring, Arduino code examples, beam focusing, line...
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