I2C Quick Connect Adapter for Bus Pirate 5/6

One fabulous I2C quick connect adapter to rule them all! The quick connect adapter combines the most popular I2C breakout standards in one Bus Pirate-compatible plank, for Bus Pirate 5 or Bus Pirate 6.

I2C is a simple communication protocol used by many sensors and devices. Over the years, manufacturers created "standard" I2C breakout board connectors for quick solder-free prototyping. All have the same basic four connections: power (V+), ground (GND), I2C Serial Data (SDA), and I2C Serial Clock (SCL), however, the pinout and connector types vary.

I2C breakout standards

The adapter includes connectors for the following I2C breakout standards:

• Adafruit Stemma 3P (a single signal connector, not an I2C connector)
• Adafruit Stemma (originjal larger 4-pin I2C format)
• Adafruit Stemma QT
• SparkFun Qwiic
• Seeed Grove
• DFRobot Gravity
• Pimoroni Breakout Garden

Pinout Table

	Pin 1	Pin 2	Pin 3	Pin 4	Pin 5
Stemma 3P	SIGNAL	V+	GND	-	-
Stemma 4P	SCL	SDA	VOUT	GND	-
Stemma QT	GND	V+	SDA	SCL	-
Qwiic	GND	V+	SDA	SCL	-
Grove	GND	V+	SDA	SCL	-
Gravity	SDA	SCL	GND	V+	-
Breakout Garden	V+	SDA	SCL	INT	GND

*Breakout Garden is a dual row PCB edge connector. The connections on each side are mirrored so boards can be inserted in both directions. The table above shows the pinout for a single row on one side.

Resources

• Documentation
• Schematic and PCB
• Development thread

Package contents

• 1x I2C Quick Connect Adapter for Bus Pirate 5/6

Bus Pirate not included