A curated list of awesome Adafruit QT Py and Seeed Studio XIAO guides, hardware, software and resources.
Adafruit QT Py and Seeed Studios XIAO are microcontroller centered electronics in a small form factor. With USB connectivity on such a small package, QT Py and XIAO provide robust capabilities in a very small space.
- Typical Specifications
- Introduction and Social Media
- Community
- Processor Boards
- Add-on Boards
- Accessories
- In the news
- Videos
- Development
- Contributing
- Dimensions: 21.8mm x 17.8mm x 5.8mm / 0.9" x 0.7" x 0.2"
- Board pins: 14 (7x2) on a 0.1 inch spacing
- USB: USB-C Connector
- Approximate weight (depends on particular board): 2.2g / 0.1oz
- About QT Py Video Short
- Original Tutorial on the Adafruit QT Py
- Adafruit Learning System Tutorials with QT Py
- Adafruit Blog - posts on QT Py
- Seeed Studio Blog - posts on XIAO
- Seeed Studio XIAO Introduction
- Getting Started with Seeed Studio XIAO SAMD21
- /r/Adafruit QT Py Reddit
- QT Py on X/Twitter
- Seeed XIAO on X/Twitter
- Adafruit Discord - Search on QT Py or XIAO
- Seeed Studio Forum on XIAO
- Adafruit Forums - Use Other Adafruit Boards for hardware, CircuitPython or Arduino
| Name | Processor | CircuitPython | Arduino | Wireless | Features |
|---|---|---|---|---|---|
| QT Py RP2040 | RP2040 | Yes | Yes | No | Stemma QT I2C Port |
| QT Py ESP32 Pico | ESP32 Pico V3 02 | MicroPython | Yes | WiFi+BLE+BT | 8MB Flash, 2MB PSRAM, Stemma QT Port |
| QT Py ESP32-C3 WiFi | ESP32-C3 | MicroPython | Yes | WiFi | Stemma QT I2C Port |
| QT Py ESP32-S2 | ESP32-S2 | Yes | Yes | WiFi | 4MB Flash, 2MB PSRAM, Stemma QT I2C, chip antenna |
| QT Py ESP32-S2 | ESP32-S2 | Yes | Yes | WiFi | 4MB Flash, 2MB PSRAM, Stemma QT I2C, uFL antenna connector |
| QT Py S3 | ESP32-S3 | Yes | Yes | WiFi+BLE | 2MB PSRAM, Stemma QT Port |
| QT Py ESP32-S3 | ESP32-S3 | Yes | Yes | WiFi+BLE | 8MB Flash, NO PSRAM, Stemma QT |
| QT Py - SAMD21 | ATSAMD21E18 | Yes | Yes | No | Stemma QT I2C Port |
| CH552 QT Py | CH552 | No | Yes | No | Announced |
| Name | Processor | CircuitPython | Arduino | Wireless | Features |
|---|---|---|---|---|---|
| XIAO ESP32C3 | ESP32-C3 | Yes | Yes | WiFi | u.FL Antenna |
| XIAO ESP32C6 | ESP32-C6 | No | Yes | WiFi6+BLE+802.15.4 | Zigbee/Thread Support |
| XIAO nRF52840 | nRF52840 | Yes | Yes | WiFi+BLE | Chip Antenna |
| XIAO nRF52840 Sense | nRF52840 | Yes | Yes | WiFi+BLE | Microphone and 6-DOF IMU |
| XIAO RP2040 | RP2040 | Yes | Yes | No | NeoPixel LED |
| XIAO SAMD21 | ATSAMD21G18 | Yes | Yes | No | |
| XIAO ESP32S3 | ESP32-S3 | No | Yes | WiFi+BLE | Chip + u.FL Antenna |
| XIAO ESP32S3 Sense | ESP32-S3 | No | Yes | WiFi+BLE | Camera, Microphone, u.FL Antenna |
Adafruit calls their QT Py size add-on boards "BFF"
| Company | Name | Features |
|---|---|---|
| Adafruit | EYESPI BFF for QT Py or Xiao | 18 Pin EYESPI FPC Connector for connecting displays |
| Adafruit | microSD Card BFF Add-On for QT Py and Xiao | Provides a microSD card slot |
| Adafruit | Audio BFF Add-on for QT Py and Xiao | MAX98357 3 watt audio amplifier, microSD slot, connector for speaker |
| Adafruit | NeoKey BFF for Mechanical Key Add-On | Add a Cherry MX compatible switch |
| Adafruit | BNO055 + BMP280 BFF Add-On for QT Py | 9 degree-of-freedom (9DoF) motion plus pressure/altitude sensing |
| Adafruit | DC Power BFF Add-On for QT Py | Power a QT Py or XIAO up to 20 volts DC |
| Adafruit | CAN Bus BFF Add-On for QT Py | MCP26525 CAN controller+transceiver and connector |
| Adafruit | NeoPixel Driver BFF Add-On for QT Py and Xiao | Level shift signal to 5V for NeoPixel LED driving |
| Adafruit | I2S Amplifier BFF Add-On for QT Py and Xiao | MAX98357 audio amplifier and picoblade speaker connector |
| Adafruit | 5x5 NeoPixel Grid BFF Add-On for QT Py and Xiao | 25 (5x5) small RGB LEDs |
| Seeed Studio | Expansion Board Base for XIAO | Grove OLED - IIC, Uart, Analog/Digital |
| Seeed Studio | CAN Bus Breakout Board for XIAO and QT Py | MCP2515 controller, SN65HVD230 transceiver chip, terminal blocks |
| Seeed Studio | Grove Base for XIAO | 4/8 Grove ports + embedded battery management chip |
| Seeed Studio | Round Display for XIAO - 1.28-inch round touch screen | 240×240 resolution, 65k colors, RTC, charge IC, TF card slot |
| Seeed Studio | 6x10 RGB MATRIX for XIAO | 60 LEDs onboard, 1m*1m WS2812B LED |
| Seeed Studio | 24GHz mmWave Sensor for XIAO | Human Static Presence |
| Seeed Studio | ePaper Breakout Board | 24-pin FPC connection, addt'l 8-pin 2.54 header |
| Seeed Studio | GNSS add on Module for XIAO | L76K GNSS Module, global tracking GPS, BeiDou, GLONASS, and QZSS |
| Evil Genius Labs | One Inch Fibonacci64 | 64 RGB LEDs in a Fibonacci distribution |
| Evil Genius Labs | One Inch Fibonacci32 | 32 RGB LEDs in a Fibonacci distribution |
| Evil Genius Labs | Mega CycloHex | Hexagonally-nested rings with 228 RGB LEDs, 6 touch pads via an Adafruit QT Py SAMD21 |
| Evil Genius Labs | CycloHex | Hexagonally-nested rings with 228 RGB LEDs, 6 touch pads via an Adafruit QT Py SAMD21 |
| Evil Genius Labs | Fibonacci64 Flower | 64 RGB LEDs in a Fibonacci distribution |
| Evil Genius Labs | Fibonacci64 50mm Goggle Lens | 50mm circular disc with 64 RGB LEDs in a Fibonacci distribution |
| Evil Genius Labs | Fibonacci182 Card | 182 RGB LEDs in a Fibonacci distribution |
| Evil Genius Labs | Fibonacci64 Micro HDR | 64 RGB LEDs in a Fibonacci distribution |
| Evil Genius Labs | Fibonacci64 Micro | 64 RGB LEDs in a Fibonacci distribution |
| Evil Genius Labs | Fibonacci64 Nano | 64 RGB LEDs in a Fibonacci distribution |
| Cyborg5 / OSH Park | IRHat2 | IoT Infrared Remote using Raspberry Pi Zero W and Adafruit QT Py Hat described here |
| SparkFun | WVR Audio Development Board - USB Host Version | A sample player powered by an ESP32. XIAO is USB Host |
| Company | Name | Features |
|---|---|---|
| Printables | Case for Adafruit QT PY RP2040 and Seeed XIAO RP2040 | 3D printable case |
- Tom's Hardware Best RP2040 Boards 2024 - Adafruit QT Py Rp2040 and Seeed XIAO RP2040, April 3, 2024
- Adafruit QT Py RP2040 Review: A tiny board for great projects - by Les Pounder, April 18, 2021
- hackster.io QT Py Unboxing
- QT Py Videos on YouTube
- Adafruit QT Py - tiny but mighty
- First Look at the Adafruit QT Py RP2040 - Fantastic Tiny RP2040 Board
- Adafruit QT PI SAMD21 Board
- The first ESP32-C3 QT Py off the machine line
- Seeeduino XIAO the Smallest Arduino, Getting Started Tutorial, Pinout, specifications, & Arduino IDE
- ESP32-C3 XIAO, the Smallest ESP32 Board, ESP32-C3 by Seeed Studio, XIAO ESP32-C3
- XIAO ESP32C6 Getting Started Tutorial, Seeed Studio, Smallest ESP32
- Seeeduino XIAO - 32-bit Arduino-compatible Microcontroller
- Unboxing and testing the Seeedstudio XIAO nerdhut.de
- Seeed XIAO RP2040
Contributions and suggestions are always welcome! Please make GitHub pull requests to modify Awesome QY Py.
To the extent possible under law, the authors have waived all copyright and related or neighbouring rights to this work.
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