Adafruit QT Py ESP32-S2 WiFi Dev Board w/ STEMMA QT
The Adafruit QT Py ESP32-S2 is a compact, feature-packed development board featuring a 240MHz ESP32-S2 SoC with native USB support, 4MB Flash, 2MB PSRAM, and a STEMMA QT connector for plug-and-play I2C sensor integration, programmable via Arduino IDE or CircuitPython.
Features
- Powered by the ESP32-S2, a 240MHz single-core SoC with integrated 2.4GHz Wi-Fi and native USB for HID/MIDI/disk drive emulation.
- Features 4MB of Flash memory and 2MB of PSRAM for buffering large data files and complex IoT application logic.
- Includes a STEMMA QT connector for chainable, plug-and-play I2C connectivity to a vast ecosystem of sensors and actuators.
- Compact form factor matches the Seeed Studio Xiao footprint, with 13 GPIOs, 10x 12-bit ADC, DAC, touch inputs, and hardware I2S/SPI/UART.
- Optimized for low-power operation with light sleep at 2-4mA and deep sleep as low as ~70µA, supported by a 3.3V/600mA regulator.
Out of stock
The Adafruit QT Py ESP32-S2 WiFi Dev Board packs the capabilities of Espressif’s ESP32-S2 into a miniature, developer-friendly footprint. Its 240MHz Xtensa single-core processor delivers robust computational performance for IoT edge processing, while the integrated native USB port opens advanced interfacing possibilities like acting as a keyboard, mouse, MIDI device, or mass storage drive without additional ICs. The board is engineered for efficient power management, supporting battery operation with protection circuitry and ultra-low deep sleep currents for long-term deployments.
Designed for rapid prototyping, the board features a dedicated STEMMA QT connector, standardizing I2C sensor hookups and eliminating soldering for compatible modules. Its generous 4MB Flash and 2MB PSRAM accommodate OTA updates, wireless stacks, and data-intensive applications like JSON parsing. The GPIO complement includes capacitive touch inputs, a hardware DAC, PWM on any pin, and high-speed SPI peripherals, making it suitable for HMI, audio, and sensor fusion projects. Compatible with both Arduino IDE and CircuitPython, it serves as a versatile platform for makers, educators, and IoT system integrators.
Additional Information
| Weight | 0.005 kg |
|---|---|
| Dimensions | 8 × 4 × 1 cm |













