Adafruit QT Py ESP32-S2 WiFi Dev Board with STEMMA QT
We have ✅ 6 available of the AF-5325 in our Sydney warehouse. An extra 100 units available with a short lead time.
The Adafruit QT Py ESP32-S2 combines Wi-Fi connectivity with native USB in the compact QT Py form factor. Built around the ESP32-S2 — a single-core 240 MHz Tensilica processor with 4 MB flash and 2 MB PSRAM — this board can act as a USB keyboard, mouse, MIDI device, or disk drive while connecting to the internet over Wi-Fi.
Native USB support means it works seamlessly with CircuitPython (showing up as a USB drive for drag-and-drop code editing) and Arduino. The STEMMA QT / Qwiic connector provides plug-and-play I2C access to hundreds of sensors, and the Seeed Xiao-compatible pinout with castellated pads makes it easy to embed in custom designs.
Key Features
- ESP32-S2 Tensilica Processor – Single-core 240 MHz with 4 MB flash and 2 MB PSRAM
- Wi-Fi 2.4 GHz – Built-in Wi-Fi for IoT connectivity
- Native USB – USB keyboard/mouse HID, MIDI, serial console, and disk drive support
- USB-C Connector – For programming, power, and USB device functions
- STEMMA QT / Qwiic Connector – Plug-and-play I2C for sensors and accessories
- RGB NeoPixel LED – With controllable power pin for ultra-low-power sleep
- 13 GPIO Pins – 10× 12-bit ADC, 1× 8-bit DAC, PWM on any pin, 5× capacitive touch
- Two I2C Ports – One on breakout pads, one on STEMMA QT connector
- Hardware UART, SPI & I2S – Full peripheral support
- CircuitPython & Arduino – Full support for both platforms
- 3.3 V Regulator – AP2112 with 600 mA peak output
- Battery Input Pads – On the underside with diode protection for up to 6 V
- Deep Sleep at ~100 µA – NeoPixel power control for low-power operation
- Seeed Xiao Compatible – Same size and pinout with castellated pads
Also Consider
- QT Py ESP32-S2 with uFL Antenna Port – Same board with external antenna connector for extended range
- QT Py ESP32-S3 – Dual-core with Wi-Fi + BLE and native USB
- QT Py ESP32 Pico – Dual-core classic ESP32 with Wi-Fi + Bluetooth Classic + BLE
- QT Py RP2040 – Dual-core ARM with native USB (no Wi-Fi)
Ideal For
- Wi-Fi connected IoT projects with native USB
- CircuitPython development with wireless connectivity
- USB HID devices (keyboards, mice, MIDI controllers)
- Compact wireless sensors with STEMMA QT accessories
- Battery-powered low-power wireless projects
Resources
The Adafruit QT Py ESP32-S2 WiFi Dev Board with STEMMA QT appears in the following collections:
