adafruit-qt-py-esp32-pico

Important Note

This entire repo was AI created - including all of the data within. The intent was to A) help me with my personal electronics inventory; and B) see how I could use AI to make that process a bit easier. DO NOT TRUST!

Adafruit QT Py ESP32 Pico - WiFi Dev Board with STEMMA QT

Details

• Location: Cabinet-1, Bin 26
• Category: Microcontroller Boards
• Type: WiFi & Bluetooth Development Board with STEMMA QT
• Microcontroller: ESP32-PICO-V3-02
• Brand: Adafruit
• Part Number: 5395
• Quantity: 1
• Product URL: https://www.adafruit.com/product/5395

Description

The super-hero QT Py board featuring the ESP32 Pico V3 02! This thumbnail-sized PCB features an all-in-one ESP32 chip with dual-core 240MHz Tensilica processor, WiFi, Bluetooth Classic + BLE, 8MB Flash, and 2MB PSRAM. Compatible with Seeed Xiao form factor with castellated pads for direct PCB mounting.

Specifications

• Part Number: 5395
• Microcontroller: ESP32-PICO-V3-02 (all-in-one package)
• Architecture: Xtensa LX6 32-bit dual-core
• Clock Speed: 240MHz
• Operating Voltage: 3.3V
• Flash Memory: 8MB
• PSRAM: 2MB
• Dimensions: 22.0mm x 17.9mm x 5.9mm
• Weight: 2.3g

Image

Features

• Dual-Core ESP32: 240MHz Tensilica processor with dual cores
• Wireless Connectivity: WiFi 802.11 b/g/n + Bluetooth Classic + BLE
• All-in-One Package: ESP32-PICO-V3-02 integrates everything in one chip
• STEMMA QT Connector: Plug-and-play I2C sensor connectivity
• USB-C Connector: Modern connector for programming and power
• RGB NeoPixel: Built-in addressable LED with power control
• Xiao Compatible: Same pinout and form factor as Seeed Xiao
• Castellated Pads: Can be soldered directly to PCB
• Reset & Boot Buttons: Easy programming and debugging

Pin Configuration

• Digital I/O: 13 GPIO pins (11 on breakout, 2 on QT connector)
• Analog Inputs: 10 pins (12-bit ADC)
• Analog Outputs: 2 pins (dual 8-bit DACs on A0/A1)
• PWM: Available on any pin
• I2C: Two ports (breakout pads + STEMMA QT)
• SPI: Hardware SPI on high-speed peripheral pins
• UART: Hardware UART in addition to USB-serial
• I2S: Hardware I2S on any pins
• Capacitive Touch: 8 pins with no additional components

Power Specifications

• Operating Voltage: 3.3V
• Input Voltage: 5V (USB-C) or up to 6V (battery pads)
• Regulator: 3.3V with 600mA peak output
• Current Consumption:
  • Light sleep: ~4mA
  • Deep sleep: ~70µA
• Battery Support: Underside pads with diode protection

Wireless Capabilities

WiFi

• Standards: 802.11 b/g/n (2.4GHz)
• Modes: Station, Access Point, Station+AP
• Security: WEP, WPA, WPA2, WPA3
• Range: Typical indoor WiFi range

Bluetooth

• Classic Bluetooth: Full Bluetooth support
• Bluetooth Low Energy (BLE): Ultra-low power wireless
• Protocols: SPP, HID, A2DP, and more
• Range: Up to 10m (Class 2)

Applications

• IoT sensor nodes with WiFi and Bluetooth connectivity
• Wireless sensor networks
• Smart home controllers
• Bluetooth audio projects
• STEMMA QT sensor networks
• Arduino WiFi/Bluetooth projects
• Portable data loggers
• Dual-wireless communication hubs

Programming

• Arduino IDE: Full support with ESP32 board package
• ESP-IDF: Espressif development framework
• MicroPython: Native support
• USB Programming: No external programmer needed (USB-to-serial converter)
• Libraries: WiFi, Bluetooth, HTTP, MQTT, sensor libraries

STEMMA QT Ecosystem

• Plug-and-Play: No soldering required for I2C sensors
• Chainable: Multiple sensors can be daisy-chained
• Compatible: Works with SparkFun Qwiic and Seeed Grove I2C
• Extensive: Large ecosystem of compatible sensors and displays

Advantages

• Dual-Core Performance: More processing power than single-core variants
• Dual Wireless: Both WiFi and Bluetooth in one tiny package
• All-in-One Chip: ESP32-PICO-V3-02 integrates everything seamlessly
• Compact Size: Tiny form factor for space-constrained projects
• Easy Connectivity: STEMMA QT eliminates wiring complexity
• Rich I/O: Dual DACs and extensive GPIO options
• Low Power: Excellent for battery-powered applications

Hardware Notes

• USB-to-Serial: Uses CH9102F converter (not native USB like ESP32-S2)
• Cannot act as USB HID: No native USB support (use Bluetooth instead)
• Regulator: May use different regulator than AP2112K due to supply chain
• Driver: Windows/Mac drivers available for CH9102F

Comparison with Other QT Py Boards

• vs ESP32-S2: Dual-core + Bluetooth vs single-core + native USB
• vs ESP32-C3: Dual-core Xtensa vs single-core RISC-V
• vs XIAO ESP32C3: More flash/PSRAM, dual-core, but larger size

Notes

• Dual-core ESP32 provides more processing power than single-core variants
• Bluetooth Classic + BLE enables rich wireless communication options
• ESP32-PICO-V3-02 is an all-in-one solution with integrated components
• 8MB Flash + 2MB PSRAM allows for complex applications
• Perfect for projects requiring both WiFi and Bluetooth connectivity
• STEMMA QT connector makes sensor integration effortless
• Compatible with Xiao ecosystem accessories

Tags

microcontroller, esp32-pico, wifi, bluetooth, qt-py, stemma-qt, usb-c, adafruit, iot, dual-core