ET-A10
Qwiic Proto Board
Two Qwiic ports and a prototyping grid
AED 9.00
Out of stockOverview
Two Qwiic ports and a prototyping grid
The ET-A10 is built around the Build your own Qwiic add-on — two Qwiic ports, I²C pull-ups, power LED and a 12 × 8 grid of 2.54mm plated holes. It runs from 3.3V or 5V from the Qwiic bus.
Two Qwiic / STEMMA QT connectors let you chain it with other boards without soldering, and the 2.54 mm header fits a breadboard.
Designed in Dubai by ElectroTrical — the full schematic, BOM and design notes are published below.
Good for
- Your own Qwiic add-ons
- Small custom circuits
- Permanent versions of breadboard tests
Key features
What makes it different
Function
Build your own Qwiic add-on: two Qwiic ports, I²C pull-ups, power LED and a 12 × 8 grid of 2.54mm plated holes
Rails
Labelled VIN and GND strips along both sides of the grid; SDA and SCL brought to pads next to the grid
Supply
3.3V or 5V from the Qwiic bus
Qwiic / STEMMA QT
Two JST-SH connectors plus a 2.54 mm header — 3.3 V and 5 V hosts.
Open documentation
Schematic, BOM and layout notes published for every board.
Breadboard friendly
Standard 2.54 mm pitch and M2.5 mounting holes.
Specifications
Technical specifications
| Function | Build your own Qwiic add-on: two Qwiic ports, I²C pull-ups, power LED and a 12 × 8 grid of 2.54mm plated holes |
|---|---|
| Rails | Labelled VIN and GND strips along both sides of the grid; SDA and SCL brought to pads next to the grid |
| Supply | 3.3V or 5V from the Qwiic bus |
| Size | 50.8 × 38.1 mm |
|---|---|
| Mounting | 4 × M2.5 holes, 2.54 mm from each corner |
| Connectors | 2 × Qwiic / STEMMA QT (JST SH 4-pin) · 4-pin 2.54 mm header |
| Revision | Rev A |
| JP1 (default Closed) | Power LED (cut = off) |
|---|---|
| JP2 (default Closed) | I²C pull-ups (cut = off) |
Performance
Proto space
Pinout
Pin map and connections
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VIN | Power | 3.3–5V |
| 2 | GND | Ground | Ground |
| 3 | SCL | I²C | I²C clock |
| 4 | SDA | I²C | I²C data |
Qwiic / STEMMA QT pins: GND, VIN, SDA, SCL (same on both connectors). I²C pull-ups (10 kΩ) are on the board; cut JP2 to remove them.
Mechanical
Dimensions and what's in the box
In the box
- 1 × ET-A10 Qwiic Proto Board (assembled)
- 1 × 4-pin 2.54 mm male header, unsoldered
Getting started
- Plug in a Qwiic / STEMMA QT cable, or solder the header and wire VIN, GND, SDA and SCL
Compare
Build your own
| Qwiic Proto Board (this board)This board | ET-A08 Qwiic Breadboard Adapter | ET-A01 Qwiic 5-Port Hub | |
|---|---|---|---|
| What it does | Two Qwiic ports and a prototyping grid | Plug Qwiic boards into a breadboard or plain headers | Split one Qwiic cable into five ports plus a header |
| Interface | — | — | — |
| Best for | Your own Qwiic add-ons | Using Qwiic sensors on any board | Connecting several sensors at once |
| Price | 9 AED | 9 AED | 9 AED |
Downloads
Documents and design files
Need a custom version of this board?
Different connector, size or sensor? We design and build custom variants.