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Adafruit ATtiny816 Breakout with seesaw - STEMMA QT / Qwiic

ADA5681 · AdafruitActive

Adafruit ATtiny816 Breakout with seesaw - STEMMA QT / Qwiic photo

Adafruit product #5681 — built on ATTINY816. Interfaces: I2C.

Part numberADA5681
ManufacturerAdafruit
CategoryInterface & Expansion › I/O Expanders & Multiplexers
Pins4

Adafruit ATtiny816 Breakout with seesaw - STEMMA QT / Qwiic pinout

PinNameTypeDescription
1GNDground
23V3power
3SDAbidirectional
4SCLinput

Schematic symbol and footprint

3V32SCL4SDA3GND1
Schematic symbol
1234MPMP
Footprint: JST-SH 4-pin SMD right-angle (SM04B-SRSS-TB) - Qwiic / STEMMA QT — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.

Datasheet

Where to buy

SupplierStockPriceStatus
Mouser18$4.95 (1+)View
DigiKey37$4.95 (1+)ActiveView

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

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