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Adafruit I2C Stemma QT Rotary Encoder Breakout with NeoPixel

ADA4991 · AdafruitActive

Adafruit I2C Stemma QT Rotary Encoder Breakout with NeoPixel photo
Adafruit I2C Stemma QT Rotary Encoder Breakout with NeoPixel illustration

Adafruit product #4991. Interfaces: I2C.

Part numberADA4991
ManufacturerAdafruit
CategoryDisplays & LEDs › LED Drivers & Controllers
Pins6

Adafruit I2C Stemma QT Rotary Encoder Breakout with NeoPixel pinout

PinNameTypeDescription
1VCCpower
23.3Vpower
3GNDground
4SCLbidirectional
5SDAbidirectional
6INTbidirectional

Schematic symbol and footprint

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Footprint: Adafruit I2C QT Rotary Encoder (header pads) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.

Where to buy

SupplierStockPriceStatus
Mouser80$5.95 (1+)View
DigiKey451$5.95 (1+)ActiveView

Stock and prices from the suppliers, checked 2026-10-08; excluding tax and shipping.

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