Adafruit QT Py ESP32-S3 WiFi Dev Board with STEMMA QT (8 MB Flash No PSRAM)

Board
by Adafruitadafruit-qt-py-esp32-s3-no-psram≈ cheap (under ~$15)
Verify my boardCompareEdit on GitHub
Adafruit QT Py ESP32-S3 WiFi Dev Board with STEMMA QT (8 MB Flash No PSRAM) pinout
Pinout

Specifications

Radiosinherited from ESP32-S3

Wi-Fi
Wi-Fi 4 · 2.4 GHz
Bluetooth LE
BLE 5
Bluetooth Classic
no
802.15.4
no

USB

Native USB
yes
Connector
usb-c
Bridge chip
none — SoC native USB

Board

Form factor
qt-py
Dimensions
21.7 × 17.8 mm
Battery connector
yes
Charging
no

Display & extras

Extras
rgb-ledstemma-qt
Built onAdafruit QT Py ESP32-S3 WiFi Dev Board with STEMMA QT (8 MB Flash No PSRAM) BoardESP32-S3 SoC

Tiny ESP32-S3 board with native USB-C, STEMMA QT, RGB NeoPixel, and 8 MB flash / no PSRAM (product 5426).

Firmware for this board

No firmware recipes yet — help add one.

Notes

  • 8 MB flash, no PSRAM (product 5426).
  • flash_mb=8 / psram_mb=0 QUOTED: product page states "8MB Flash, 512KB SRAM, no PSRAM"; title "Adafruit QT Py ESP32-S3 WiFi Dev Board with STEMMA QT - 8 MB Flash / No PSRAM".
  • SOURCE NOTE: the universe manifest lists this id's source_url as adafruit.com/product/5700, but that product page is the *2 MB PSRAM / 4 MB flash* variant ("Adafruit QT Py S3 with 2MB PSRAM"). The no-PSRAM 8 MB board this id names is product 5426, which is cited here so psram_mb=0 is grounded (cite-or-omit).
  • dimensions_mm QUOTED: "Product Dimensions: 21.7mm x 17.8mm x 5.7mm" (height 5.7 mm omitted; two-axis footprint recorded).
  • usb.bridge=native / usb_serial QUOTED: "native USB" and "ESP32-S3 Dual Core 240MHz Tensilica processor ... with native USB"; esp32-s3 exposes native USB-Serial-JTAG.
  • Battery input pads on underside with diode protection for external packs up to 6V; no onboard charging. QUOTED: "Battery input pads on underside with diode protection for external battery packs up to 6V input".
  • io.gpio_exposed=11 QUOTED: product page states "13 GPIO pins: 11 on breakout pads, 2 more on QT connector" -- 11 pads recorded (gpio_free omitted, not vendor-printed).
  • extras QUOTED: "Built-in RGB NeoPixel LED with power control" and "STEMMA QT connectors for the I2C bus".
  • aka omitted: the arduino-esp32 FQBN adafruit_qtpy_esp32s3_nopsram is already carried by the existing adafruit-qt-py-esp32-s3 record for the same product, so it is not duplicated here.

Verify my board

Reads the connected chip over USB and checks it against what esp-atlas cites for Adafruit QT Py ESP32-S3 WiFi Dev Board with STEMMA QT (8 MB Flash No PSRAM) — over Web Serial, no backend, nothing leaves your browser.

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Serial monitor

Not connected.