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

Board
by Adafruitadafruit-qt-py-esp32-s3≈ cheap (under ~$15)

Also known as: adafruit_qtpy_esp32s3_nopsram

Verify my boardCompareEdit on GitHub
Adafruit QT Py ESP32-S3 WiFi Dev Board with STEMMA QT (8MB Flash No PSRAM) board
Board
Adafruit QT Py ESP32-S3 WiFi Dev Board with STEMMA QT (8MB 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 (8MB Flash No PSRAM) BoardESP32-S3 SoC

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

Firmware for this board

No firmware recipes yet — help add one.

Notes

  • 8 MB flash, no PSRAM (this product, 5426); a separate 4 MB flash / 2 MB PSRAM variant is sold as product 5700
  • Battery input pads on underside with diode protection for external packs up to 6V; no onboard charging circuit
  • io.gpio_exposed=11 QUOTED: vendor page states "There are eleven GPIO pins broken out to pads."
  • io.power_out QUOTED: vendor page states "These pins are the output from the 3.3V regulator, they can supply 600mA peak."
  • io.gpio_free=8 DERIVED: cross-referencing the vendor firmware repo's own CircuitPython board pin-definition (pins.c) maps the eleven pads to GPIO5-9, 16-18, 35-37 -- of esp32-s3's soc.reserved_pins, GPIO35/36/37 (MOSI/SCK/MISO, usb_flash_tied) are among them; the BOOT button (GPIO0) and the STEMMA QT connector's dedicated I2C (SCL1/SDA1, GPIO40/41) and NeoPixel (GPIO38/39) sit off the eleven counted pads -- so 11 - 3 = 8
  • usb_serial derived from usb.bridge (native) + soc usb.type otg-full-speed + serial-jtag

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 (8MB Flash No PSRAM) — over Web Serial, no backend, nothing leaves your browser.

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Serial monitor

Not connected.