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How to Use the USB Stepless Governer DC Speed Controller: Mode 1 The first mode is a constant 5V source. Input your 5V source to the micro USB or USB

The 125KHz RFID Key Fob is a compact, contactless device used for identification and access control applications. Operating at a low frequency of 125 kHz, these key fobs are commonly

The 12V 8-Channel Relay Module with Optocoupler is designed to control multiple high-voltage devices using low-voltage signals from microcontrollers like Arduino, Raspberry Pi, and ESP32. Featuring optocoupler isolation, it ensures

The 25V 220µF electrolytic capacitor is a widely used component in electronic circuits, offering a balance between size and capacitance. It’s commonly employed for filtering, decoupling, and energy storage applications.

This compact laser module emits a bright red dot at a wavelength of 650nm, with an output power of 5mW. Designed for industrial alignment, positioning, and embedded electronics applications, it