# Adafruit QT Py ESP32-S2 WiFi Dev Board with STEMMA QT

**Type:** Product page · **SKU:** ADA5325 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/adafruit-qt-py-esp32-s2-wifi-dev-board-with-stemma-qt.html ([markdown](https://core-electronics.com.au/adafruit-qt-py-esp32-s2-wifi-dev-board-with-stemma-qt.html.md))

This diminutive dev board comes with one of Adafruit's new favorite lil chips, the ESP32-S2!

## Pricing

- **Price:** $23.10 (inc GST) — $21.00 AUD, exc GST
- **Quantity discounts:** 10+ $20.37 (exc GST) · 50+ $19.95 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 27 and Aug 31.

## Description

What has your favorite Espressif WiFi microcontroller, comes with Adafruit's favorite connector - the STEMMA QT, a chainable I2C port, and has lots of Flash and RAM memory for your next IoT project? What will make your next IoT project flyyyyy? What a cutie pie! Or is it... a **QT Py**? This diminutive dev board comes with one of Adafruit's new favorite lil chips, the **ESP32-S2**!

The ESP32-S2 is a highly-integrated, low-power, 2.4 GHz Wi-Fi System-on-Chip (SoC) solution that now has **built-in native USB** as well as some other interesting new technologies like Time of Flight distance measurements. With its state-of-the-art power and RF performance, this SoC is an ideal choice for a wide variety of application scenarios relating to the [Internet of Things (IoT)](https://core-electronics.com.au/#), [wearable electronics](https://core-electronics.com.au/#), and smart homes.

**Please note** the QT Py ESP32-S2 has a single-core 240 MHz chip, so it won't be as fast as ESP32's with dual-core. Also, there is no Bluetooth support. However, Adafruit are super excited about the ESP32-S2's native USB which unlocks a lot of capabilities for advanced interfacing! This ESP32-S2 mini-module Adafruit are using on the QT Py comes with 4 MB flash and 2 MB PSRAM so you can buffer massive JSON files for parsing!

[OLEDs](https://core-electronics.com.au/search/?q=qt+oled&main_page=category&cPath=1005&sort=BestMatch)! [Inertial Measurement Units](https://core-electronics.com.au/search/?q=qt+imu&main_page=category&cPath=1005&sort=BestMatch)! [Sensors a-plenty](https://core-electronics.com.au/search/?q=qt+sensor&main_page=category&cPath=1005&sort=BestMatch). All plug-and-play thanks to the innovative chainable design: [SparkFun Qwiic](https://www.sparkfun.com/qwiic)-compatible [STEMMA QT](https://learn.adafruit.com/introducing-adafruit-stemma-qt) connectors for the I2C bus so you don't even need to solder! Just plug in a compatible cable and attach it to your MCU of choice, and you’re ready to load up some software and measure some light. [Seeed Grove I2C boards](https://core-electronics.com.au/grove-to-stemma-qt-qwiic-jst-sh-cable-100mm-long.html) will also work with this adapter cable.

Pinout and shape are [Seeed Xiao](https://wiki.seeedstudio.com/Seeeduino-XIAO/) compatible, with castellated pads so you can solder it flat to a PCB. In addition to the QT connector, They also added an **RGB NeoPixel** (with controllable power pin to allow for ultra-low-power usage), **a reset button** (great for restarting your program or entering the bootloader) and a button on GPIO 0 for entering the ROM bootloader or for user input

Runs Arduino like a dream, and CircuitPython projects are fantastically fun.

- Same size, form-factor, and pin-out as Seeed Xiao
- **USB Type C connector** - [If you have only Micro B cables, this adapter will come in handy](https://core-electronics.com.au/micro-b-usb-to-usb-c-adapter.html)!
- **ESP32-S2 240MHz Tensilica processor** - the next generation of ESP32, now with native USB so it can act like a keyboard/mouse, MIDI device, disk drive, etc!
- **4 MB Flash & 2 MB PSRAM**
- Native USB supported by every OS - can be used in Arduino or CircuitPython as USB serial console, MIDI, Keyboard/Mouse HID, even a little disk drive for storing Python scripts.
- Can be used with **Arduino IDE** or **CircuitPython**
- **Built-in RGB NeoPixel LED** with power control to reduce quiescent power in deep sleep
- Battery input pads on underside with diode protection for external battery packs up to 6V input
- **13 GPIO pins:**
    - 11 on breakout pads, 2 more on QT connector
    - 10 x 12-bit analog inputs (SPI high speed pads do not have analog inputs)
    - 8-bit analog output DAC
    - PWM outputs on any pin
    - Two I2C ports, one on the breakout pads, and another with STEMMA QT plug-n-play connector
    - Hardware UART
    - Hardware SPI on the high speed SPI peripheral puns
    - Hardware I2S on any pins
    - 6 x Capacitive Touch with no additional components required
- 3.3V regulator with [**600mA peak output**](https://core-electronics.com.au/attachments/localcontent/AP2112_75527108c38.pdf)
- Deep sleep at 100uA
- **Reset switch** for starting your project code over, boot 0 button for entering bootloader mode
- **Really really small**
 
## Technical Details

Product Dimensions: 21.8mm x 17.9mm x 5.7mm / 0.9" x 0.7" x 0.2"

Product Weight: 2.1g / 0.1oz

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_12363.jpg)