{"title":"Adafruit QT Py S3 with 2MB PSRAM WiFi Dev Board with STEMMA QT","handle":"adafruit-qt-py-s3-with-2mb-psram-wifi-dev-board-with-stemma-qt","url":"/products/adafruit-qt-py-s3-with-2mb-psram-wifi-dev-board-with-stemma-qt","description":"The Adafruit QT Py ESP32-S3 with 2 MB PSRAM is the memory-upgraded version of the QT Py ESP32-S3. With 4 MB flash, 512 KB SRAM, and 2 MB PSRAM, it can handle large data buffers — perfect for image processing, large JSON parsing, or memory-intensive CircuitPython projects that the standard version can't manage.\n\nBuilt around the ESP32-S3 dual-core 240 MHz Tensilica processor with Wi-Fi, Bluetooth LE, and native USB, this tiny board can act as a USB keyboard, mouse, MIDI device, or disk drive while connecting wirelessly. Program it with CircuitPython, Arduino, or ESP-IDF, and use the STEMMA QT / Qwiic connector for plug-and-play I2C sensors.\n\nKey Features\n\n\nESP32-S3 Dual-Core Tensilica – 240 MHz with 4 MB flash, 512 KB SRAM, and 2 MB PSRAM\n\nWi-Fi 2.4 GHz – Built-in Wi-Fi for IoT connectivity\n\nBluetooth LE – BLE support for wireless peripherals and mesh (no Bluetooth Classic)\n\nNative USB – USB keyboard/mouse HID, MIDI, serial console, and disk drive support\n\nUSB-C Connector – For programming, power, and USB device functions\n\nSTEMMA QT / Qwiic Connector – Plug-and-play I2C for sensors and accessories\n\nRGB NeoPixel LED – With controllable power pin for ultra-low-power sleep\n\n13 GPIO Pins – 10× 12-bit ADC, PWM on any pin, 5× capacitive touch\n\nTwo I2C Ports – One on breakout pads, one on STEMMA QT connector\n\nHardware UART, SPI & I2S – Full peripheral support\n\nCircuitPython & Arduino – Full support for both platforms\n\n3.3 V Regulator – AP2112 with 600 mA peak output\n\nBattery Input Pads – On the underside with diode protection for up to 6 V\n\nLow Power Modes – Light sleep at 2–4 mA, deep sleep at ~70 µA\n\nSeeed Xiao Compatible – Same size and pinout with castellated pads\n\n\nAlso Consider\n\n\nQT Py ESP32-S3 (No PSRAM) – Same chip with 8 MB flash but no PSRAM (lower cost)\n\nQT Py ESP32-S2 – Single-core with native USB and 2 MB PSRAM (no BLE)\n\nQT Py ESP32 Pico – Classic ESP32 with Bluetooth Classic + BLE and 2 MB PSRAM\n\nQT Py RP2040 – Dual-core ARM with PIO and 8 MB flash (no Wi-Fi)\n\n\nIdeal For\n\nMemory-intensive CircuitPython and Arduino projects\nWi-Fi + BLE IoT projects with native USB\nImage buffering and large data processing\nUSB HID devices with wireless connectivity\nCompact embedded designs via castellated pads\n\n\nResources\n\nAdafruit QT Py ESP32-S3 Learning Guide\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":1501,"title":"Default Title","sku":"AF-5700","price":23.69,"on_sale":false,"in_stock":true,"available_quantity":88,"option1":"Default Title"}]}