DFRobot
Gravity:Digital RED LED Light Module
All Products
Individual LEDs
New Arrivals
Arduino
Brands and Manufacturers
LEDs
LEDs & NeoPixels
DFRobot
$2.95
|
In stock
A simple red LED module with a Gravity 3-pin digital interface for plug-and-play connection to Arduino and other microcontrollers via a Gravity IO Expansion ...
Get notified when back in stock
Estimated Delivery
Arrives
Disclaimer
Secure checkout
A simple red LED module with a Gravity 3-pin digital interface for plug-and-play connection to Arduino and other microcontrollers via a Gravity IO Expansion Shield. Ideal for beginners learning digital output control.
Key Features
- Gravity Interface – 3-pin plug-and-play connection
- Digital Control – Simple on/off via a single digital pin
- Active-Low Design – LED lights when the signal pin is set LOW
Specifications
- Type – Digital
- Colour – Red
- Pin Definition – (1) Signal, (2) VCC, (3) GND
Package Contents
- 1× Gravity Digital Red LED Module
- 1× Digital Sensor Cable
Note: This LED is wired active-low — it lights up when the signal pin is set to LOW. This prevents the LED from drawing excessive current from the microcontroller I/O pin. To use it with active-high logic, swap the signal wire (green) with the GND wire (black), and connect the VCC wire (red) to the signal pin's original position.
Jargon buster
Plain-language definitions for the technical terms used above.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- Shield
- An add-on board that plugs into a main controller board to give it extra features such as sensing, motor control or communication. Knowing a product supports shields helps you judge whether it can connect neatly into an existing maker-board setup.
- VCC
- VCC is the positive power-supply connection on a chip or module. Connecting it to the correct supply voltage is needed for the part to power on and helps avoid damaging the electronics.
Find this product in
Brands
Related Tutorials
Free guides on learn.littlebird.com.au
