DFRobot Gravity: Digital LED Light Module - High-brightness LED beads compatible with Arduino, with multiple color options available.

The DFR0021 series LED electronic building blocks are PCB LED modules specially designed by DFRobot for beginners.

Core component: This module uses imported high-quality and bright LED chips to ensure color, brightness and durability.

PCB manufacturing: The PcB board uses silver pads. Each fixed hole and interface is surrounded by asilver ring for identification. The edges are all rounded to prevent being scratched by sharp boards.

Mechanical Design: standard fixing holes are set at the four corners ofthe module, allowingyou to easily attach it to the project.Electronic Design: On this small PCB board, there is also an overcurrent and overvoltage protection circuit,clearly indicating the interfaces of GND/VCC/SlGNAL. After connecting the 3P digital sensor cable we providedusers can directly plug it into an ordinary 10-sensor expansion board. Why is the LED module recommended forbeginners?

By using the traditional breadboard wiring method, beginners are prone to forget to connect the protection resistor, resulting inexcessive current and burning out the light bulbs. This LED module is equipped with an overcurrent protection circuit.

The LED light-emitting diode has polarity. lf connected in reverse, it may cause the diode to be damaged.

This LED module indicates the functions of each pin and can be connected to any expansion board.

If you want to connect multiple LEDs to Arduino, a large amount of wires will be tangled on the breadboard.

However, by using this LED module and the expansion board together, the wiring can be made very neat and tidy.