
Single green 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.
Digital LED control terminal. DFRobot states the module is a digital LED light module and that the LED lights when the signal pin is low; product page pin definition lists (1) control terminal.
Power supply pin from the DFRobot product-page pin definition.
Ground pin from the DFRobot product-page pin definition.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| SIG / control terminal |
I2C · SPI · Single data line · 5 V · 3.3 – 5 V · Bare
Verify supply voltage and logic levels before powering up.
Module pins: VCC / power supply, GND / ground, SIG / control terminal. Schematik maps them to your board in the app.
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.
RGB Backlight Positive LCD 16x2 visual preview
SparkFun 16x2 SerLCD - RGB Backlight (Qwiic) visual preview
I2C 20x4 Arduino LCD Display Module visual preview
Gravity: I2C 16x2 Arduino LCD with RGB Backlight Display V2.0 visual preview16×2 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 · 187 parts
1.02" E-Ink Display Module - 128x80, Black/White, SPI visual preview
1.02" E-Ink Raw Display Panel - 128x80, Black/White, SPI visual preview
1.54inch e-Paper Module (B), 200×200, 3-Color, SPI visual preview
1.54inch e-Paper Module, 200×200, SPI visual previewWaveshare 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 · 102 parts
0.49inch OLED Display Module, 64×32, I2C visual preview
0.91" OLED Display Module - 128x32, I2C visual preview
0.96" OLED (B) - SPI/I2C visual preview
0.96" RGB OLED Display Module - 64x128, SPI, 65K Colors visual previewAbout 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 · 29 parts
1.75mm PLA (1kg) - Black visual preview
1.75mm PLA (1kg) - Gold visual preview
1.75mm PLA (1kg) - Green visual preview
1.75mm PLA (1kg) - Natural visual previewDFRobot 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
| 1 |
| signal |
| Digital LED control terminal. DFRobot states the module is a digital LED light module and that the LED lights when the signal pin is low; product page pin definition lists (1) control terminal. |
| VCC / power supply | 2 | power | Power supply pin from the DFRobot product-page pin definition. |
| GND / ground | 3 | ground | Ground pin from the DFRobot product-page pin definition. |
"Shake" 8x8 LED Matrix