Adafruit ESP32-S2 Feather - 2 MB PSRAM and STEMMA QT / Qwiic
100 units available with a short lead time.
The Adafruit ESP32-S2 Feather brings Espressif's single-core ESP32-S2 to the Feather ecosystem with native USB, 2.4 GHz Wi-Fi, 4 MB flash, and 2 MB PSRAM. Native USB support means it can act as a keyboard, mouse, MIDI device, or disk drive — no separate USB-to-serial chip needed.
This version includes a STEMMA QT port with switchable power for I2C peripherals, a NeoPixel with controllable power, and battery monitoring via the MAX17048 fuel gauge. In deep sleep, current draw drops to approximately 80–100 µA from the LiPo connection.
Key Features
- ESP32-S2 240 MHz Tensilica – Single-core with 2.4 GHz Wi-Fi (no Bluetooth)
- Native USB – HID, MIDI, mass storage, and CDC serial without an external chip
- 4 MB Flash + 2 MB PSRAM – Large buffers for data-heavy applications
- USB-C – Power, charging, and native USB communication
- LiPo Battery Support – JST connector with charging and MAX17048 fuel gauge monitoring
- STEMMA QT / Qwiic – I2C port with independently switchable 3.3V power
- NeoPixel – Addressable RGB LED with controllable power pin
- Ultra-Low Power – ~80–100 µA deep sleep current
- FCC/CE Certified Module – Compact module with PCB antenna
- Feather Form Factor – Compatible with FeatherWings
Also Available
- ESP32-S2 Feather with BME280 Sensor
- ESP32-S2 TFT Feather (with built-in colour display)
- ESP32-S2 Reverse TFT Feather (display on back for panel mounting)
- ESP32-S3 Feather (dual-core, Bluetooth LE)
- ESP32-C6 Feather (Wi-Fi 6, Zigbee/Thread)
Ideal For
- Wi-Fi IoT projects with native USB capability
- CircuitPython and Arduino development
- USB HID devices (keyboards, mice, game controllers)
- Battery-powered wireless sensor nodes
Package Contents
- 1× Adafruit ESP32-S2 Feather with 2 MB PSRAM and STEMMA QT
The Adafruit ESP32-S2 Feather - 2 MB PSRAM and STEMMA QT / Qwiic appears in the following collections:
