The Adafruit STEMMA QT is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All STEMMA QT-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.
STEMMA QT is cross-platform and is found on Adafruit accessories for the Arduino, BBC micro:bit, and Raspberry Pi along with many of Adafruit’s own microcontrollers. It is also directly compatible with SparkFun’s Qwiic System.
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Adafruit BH1750 Light Sensor – STEMMA QT / Qwiic
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Adafruit DS3231 Precision RTC – STEMMA QT / Qwiic
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Adafruit FeatherWing OLED
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Adafruit ISM330DHCX + LIS3MDL FeatherWing
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Adafruit LIS3DH Triple-Axis Accelerometer
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Adafruit LSM6DS3TR-C 6 DoF
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Adafruit MPU-6050 6-DoF
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Adafruit PCF8523 RTC Assembled Breakout Board
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Adafruit QT Py RP2040
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Adafruit ST25DV16K I2C RFID EEPROM Breakout
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Adafruit VL53L1X ToF Sensor – STEMMA QT/Qwiic
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