Gravity: Digital Red LED Light Module

Single red LED on a Gravity 3-pin digital module for Arduino IO shields. LED activates when the signal pin is driven low; reverse the wiring to activate on high. Includes sensor cable.

Logical pinout · physical placement not verified

VCC
Type · Power
GND
Type · Ground
D
Type · Signal

Pin	Type
VCC	Power
GND	Ground
D	Signal

Logical pinout · physical placement not verified

Pin details

3 connections

VCC
Power
GND
Ground
D
Signal

Start wiring

I2C · SPI · Single data line · 5 V · 3.3 – 5 V · Bare

Module pins: VCC, GND, D. Schematik maps them to your board in the app.

LED displays

88 other options

Adafruit HT16K33 backpacks, MAX7219 daisy-chains, NeoPixel and DotStar grids, HUB75 RGB matrix panels, charlieplexed arrays, bare clock displays, and two VFD character modules — almost 90 parts, none wired the same way.

View all 88

Related groups

4 groups

TFT & LCD

16×2 and 20×4 character LCDs (parallel, I2C backpack, Qwiic, Grove), SPI TFTs from 0.71 to 3.5 inches, and large DSI and HDMI capacitive-touch panels up to 13.3 inches.

Displays · TFT & LCD displays · 190 parts

E-paper

Waveshare makes up the large majority of parts here and often sells the same panel twice: once as a raw display needing a separate driver board, and once as a module or HAT+ with the SPI controller attached.

Displays · E-paper displays · 101 parts

OLED

About 30 parts: monochrome I2C modules from 0.49 to 1.3 inches, SPI/I2C grayscale and 65K-color RGB panels up to 1.5 inches, a transparent OLED, and ecosystem-specific units for Raspberry Pi, FireBeetle and M5Stack Grove.

Displays · OLED displays · 30 parts

3D printing

DFRobot 1.75 mm PLA in 1 kg spools makes up the bulk of the group, in over 15 colors. Specialty options include PVA in both diameters, NinjaFlex flexible filament, Proto-Pasta conductive PLA, and wood-fill. OverLord printer spares and OverLord printers round out the hardware side.

Tools & prototyping · 3D printing · 53 parts