Qwiic adapter hardware design
SolderedElectronics·qwiic-adapter-hardware-design·CAD/V1.1.1/easyC_adapter.kicad_pcb
About the Qwiic adapter hardware design PCB
Qwiic adapter hardware design is an open source PCB design by SolderedElectronics, published on GitHub under the TAPR-OHL-1.0 license. It is a 2-layer board measuring 11 × 22 mm, with 3 components from 2 distinct parts.
From the project
Hardware design, BOM, gerbers and 3D files for qwiic-adapter designed by Soldered Electronics.
Do you have an old I2C board lying around that would be perfect only if it had qwiic connectors? With the qwiic adapter and a little bit of soldering, you can give it new life. It will be able to connect easily to newer boards with qwiic cables.
The adapter has two qwiic connection ports and four plated through-holes: SCL, SDA, 3.3V, and GND. It comes with pins that need to be soldered to the board.

Qwiic adapter hardware design bill of materials (BOM)
3 components, 2 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | easyC-SMD | easyC-connector | K1, K2 |
| 1 | HEADER_MALE_4X1 | HEADER_MALE_4X1 | K3 |
Qwiic adapter hardware design design files
The KiCad project lives in the SolderedElectronics/qwiic-adapter-hardware-design repository on GitHub; these links point at the commit this page was built from.
Qwiic adapter hardware design: common questions
How big is the Qwiic adapter hardware design PCB?
The Qwiic adapter hardware design measures 11 × 22 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Qwiic adapter hardware design?
3 components, from 2 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Qwiic adapter hardware design design files?
From the SolderedElectronics/qwiic-adapter-hardware-design repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Qwiic adapter hardware design design in my own project?
Yes, under the terms of its TAPR-OHL-1.0 license, which SolderedElectronics chose for the repository.