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
$8.95Light PacketThe Adafruit BH1750 breakout board is an easy to use light sensor able to provide 16-bit measurements. The board is Qwiic / STEMMA QT compatible and… -
Adafruit DS3231 Precision RTC – STEMMA QT / Qwiic
$22.95Light PacketThe DS3231 RTC Breakout is an extremely accurate, easy to use, real time clock. It is accurate to +/- 2 minutes per year and has… -
Adafruit FeatherWing OLED
Original price was: $23.95.$23.00Current price is: $23.00.Light PacketSaleThis FeatherWing adds a gorgeous 128x64 monochrome OLED plus 3 user buttons to any Feather main board. Using the included Feather Stacking Headers or Feather… -
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Adafruit LIS3DH Triple-Axis Accelerometer
$7.95Light PacketThe Adafruit LIS3DH breakout is a feature filled, low power, accelerometer that is configurable to several ranges of sensitivity. This accelerometer chipset is commonly found… -
Adafruit LSM6DS3TR-C 6 DoF
$15.95Light PacketAdd motion and orientation sensing to your Arduino project with this affordable 6 Degree of Freedom (6-DoF) sensor with sensors from ST. The board includes an ST LSM6DS3TR-C,… -
Adafruit MPU-6050 6-DoF
$20.95Light PacketThe Adafruit MPU-6050 is an easy to use Qwiic / STEMMA QT compatible 6 axis Inertial measurement Unit (IMU). The package is comprised of a… -
Adafruit PCF8523 RTC Assembled Breakout Board
Original price was: $8.95.$7.75Current price is: $7.75.Light PacketSaleThis is a simple little real time clock (RTC) breakout board based on the PCF8523 chipset. The breakout allows your microcontroller project to keep track… -
Adafruit QT Py ESP32-S2 WiFi Dev Board with uFL Antenna Port
$19.95Light PacketThe Adafruit QT Py ESP32-S2 WiFi Dev Board is an tiny ESP32 based microcontroller ideal for Internet of Things (IoT), wearable electronics, and smart home… -
Adafruit QT Py RP2040
$15.95Light PacketThe Adafruit QT Py RP2040 is about the smallest RP2040 based microcontroller out there! This tiny board features the RP2040 32-bit Cortex M0+ dual core… -
Adafruit ST25DV16K I2C RFID EEPROM Breakout
$6.95Light PacketThis RFID tag is really unique: it works with mobile phones just like other RFID tags, but you can reprogram it over I2C. The tag… -
Adafruit VL53L1X ToF Sensor – STEMMA QT/Qwiic
$24.95Light PacketThis 'next generation' VL53L0X ToF sensor from Adafruit can handle about ~30 to 4000mm of range distance, with up to 50Hz update rate. The breakout… -
BME280 Temperature Humidity Pressure Sensor
$27.95Light PacketBosch has stepped up their game with their new BME280 sensor, an environmental sensor with temperature, barometric pressure and humidity! This sensor is great for… -
ESP8266 1 Channel Relay Board
$16.95The ESP8266 1 Channel Relay Board is a ready-to-program IoT relay module featuring the ESP8266 SMT module (ESP-12E), a high quality 10A relay, a power… -
Flexible Qwiic Cable – Breadboard Jumper 4 Pin
$3.95Light PacketThis 4-wire cable is a little over 150mm / 6" long and fitted with JST-SH female 4-pin connectors on one end and premium Dupont male… -
Flexible Qwiic Cable – Female Jumper 4 Pin
$3.95Light PacketThis 4-wire cable is a little over 150mm / 6″ long and fitted with a JST-SH female 4-pin (Qwiic) connector on one end. The Qwiic… -
JST SH 4-pin Cable with Alligator Clips – STEMMA QT / Qwiic
$5.95Light PacketThis unique cable has a JST SH 4-pin on one side and alligator clips on the other. Perfect for working with Qwiic / STEMMA QT… -
Qwiic / STEMMA QT Cable – 100mm
$2.95Light PacketThis Qwiic / STEMMA QT cable measures 100mm long and is ideal for areas where devices are close to one another. -
Qwiic / STEMMA QT Cable – 500mm
$4.50Light PacketThis Qwiic / STEMMA QT cable measures 500mm long and is ideal for areas where devices are further apart. -
Qwiic / STEMMA QT Cable – 50mm
$2.95Light PacketThis Qwiic / STEMMA QT cable measures 50mm long and is ideal for areas where devices are close to one another. -
Qwiic / STEMMA QT Port Expander
$7.95Light PacketThe Qwiic / STEMMA QT Port Expander is a handy add on board that allows multiple SparkFun Qwiic or Adafruit STEMMA QT breakout boards and… -
Raspberry Pi Power + Relay HAT
$33.95The Raspberry Pi Power + Relay HAT is designed as an all-in-one simple automation add on for Raspberry Pi. It combines the beefy 5V 3A… -
Raspberry Pi Power + RTC HAT – Assembled
$41.95The Raspberry Pi Power RTC HAT is an all in one DC/DC converter and accurate DS3231 Real Time Clock. The fused and reverse polarity protected… -
Raspberry Pi Power HAT v2 – Assembled
$24.95The Raspberry Pi Power HAT is an easy to use DC power converter for your Raspberry Pi! This board will take 7-16VDC and output 5V…