The MAX7219 8×8 LED Dot Matrix Module is an SPI-controlled LED display module featuring an 8×8 common cathode LED matrix driven by the MAX7219 display driver IC. It requires only three microcontroller pins for communication and supports cascading multiple modules to create larger scrolling text and animation displays. Ideal for Arduino, ESP32, STM32, Raspberry Pi, clocks, counters, message displays, and DIY electronics projects.

Expand your microcontroller with 16 digital I/O pins through I2C using only SDA and SCL. Suitable for buttons, LEDs, relays and control circuits.

XH-M401 DC-DC Step-Down Buck Converter is a high-power adjustable voltage regulator based on the XL4016, supporting 8V–36V input, 1.25V–36V adjustable output, up to 8A and 200W power with efficiency up to 96%. It features thermal, overcurrent, and short-circuit protection, making it ideal for DIY power supplies, Arduino, ESP32, automation, industrial, and embedded electronics projects.

DC Vibration Motor Module is a compact haptic feedback module featuring a 10mm vibration motor, MOSFET drive, and PWM control for adjustable vibration intensity. Operating from 3–5.3V DC with low power consumption, it is ideal for Arduino, ESP32, wearable devices, robotics, silent alerts, timers, and interactive electronics projects.