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STEMMA QT / Qwiic JST SH 4-Pin Cable - 300mm long
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SparkFun Qwiic Ecosystem
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This 300 mm (11.8") 4-wire cable is fitted with JST-SH female 4-pin connectors on both ends. The 1 mm pitch JST-SH connectors are more compact than the chunk...
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This 300 mm (11.8") 4-wire cable is fitted with JST-SH female 4-pin connectors on both ends. The 1 mm pitch JST-SH connectors are more compact than the chunkier 2 mm pitch JST-PH, while still providing a secure latching connection that is easy to insert and remove.
Compatible with both STEMMA QT and Qwiic ecosystems, this cable provides a quick plug-and-play connection for I2C sensors, drivers, and breakout boards. Data wires are interleaved with ground and power to reduce cross-talk.
Key Features
- JST-SH 4-Pin Connectors – 1 mm pitch, female connectors on both ends
- STEMMA QT / Qwiic Compatible – Works with both ecosystems
- Latching Connectors – Secure connection with easy insertion and removal
- Reduced Cross-Talk – Data wires interleaved with ground and power
Wire Colour Map
- Red – 3.3 V DC power
- Black – Ground
- Blue – I2C SDA (data)
- Yellow – I2C SCL (clock)
Specifications
- Length – 300 mm
- Connector – JST-SH 4-pin female (both ends)
- Pitch – 1 mm
- Wires – 4
Ideal For
- Connecting STEMMA QT and Qwiic I2C devices
- Sensor and breakout board wiring
- Prototyping with I2C peripherals
Note: At 300 mm this cable is relatively long for I2C. If you experience connection or data issues at higher bus speeds (400 kHz, 800 kHz, or 1 MHz), try lowering the I2C clock rate.
Resources
Package Contents
- 1× STEMMA QT / Qwiic JST-SH 4-pin cable (300 mm)
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- Qwiic
- Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
- SCL
- The clock line used by the I2C bus to keep data transfers timed between a controller and connected devices. When wiring I2C, SCL must be connected to the SCL pin on every device sharing the bus.
- SDA
- The data line used by the I2C bus to carry information between a controller and connected devices. When wiring I2C, SDA must be connected to the SDA pin on every device sharing the bus.
- STEMMA
- A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
- STEMMA QT
- A small plug-in connector system for I2C boards that lets you connect compatible sensors and controllers without soldering. It matters because it can make wiring faster and less error-prone, especially when adding several small modules to a project.
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