The Adafruit QT Py ESP32 Pico brings the full power of the classic ESP32 into the tiny QT Py form factor. Built around the ESP32-PICO-V3-02 — an all-in-one module with dual-core 240 MHz Tensilica processor, Wi-Fi, Bluetooth Classic + BLE, 8 MB flash, and 2 MB PSRAM — this thumbnail-sized board is ready for serious IoT projects.

The ESP32 Pico integrates the processor, crystal oscillator, flash, PSRAM, and RF matching into a single package, keeping the board compact. A USB-to-serial converter provides programming and debugging over USB-C, and the STEMMA QT / Qwiic connector gives you plug-and-play I2C access to hundreds of sensors and accessories. Program it with Arduino or MicroPython.

Key Features

• ESP32 Dual-Core Xtensa – 240 MHz with 8 MB flash and 2 MB PSRAM
• Wi-Fi 2.4 GHz – Full Wi-Fi with TLS/SSL support
• Bluetooth Classic + BLE – Both classic Bluetooth and BLE for wireless connectivity
• USB-C Connector – USB-to-serial converter for programming and debugging
• STEMMA QT / Qwiic Connector – Plug-and-play I2C for sensors and accessories
• RGB NeoPixel LED – Built-in with controllable power pin for ultra-low-power sleep
• 13 GPIO Pins – 10× 12-bit ADC, 2× 8-bit DAC, PWM on any pin, 8× capacitive touch
• Two I2C Ports – One on breakout pads, one on STEMMA QT connector
• Hardware UART, SPI & I2S – Full peripheral support
• 3.3 V Regulator – AP2112 with 600 mA peak output
• Battery Input Pads – On the underside with diode protection for up to 6 V
• Low Power Modes – Light sleep at ~4 mA, deep sleep at ~70 µA
• Reset & Boot Buttons – Reset switch and GPIO 0 boot button
• Seeed Xiao Compatible – Same size and pinout with castellated pads

Also Consider

• QT Py ESP32-S2 – Native USB with CircuitPython support (no Bluetooth)
• QT Py ESP32-S3 – Native USB + Wi-Fi + BLE with CircuitPython support
• QT Py ESP32-C3 – RISC-V core with Wi-Fi + BLE (no Bluetooth Classic)
• QT Py RP2040 – Dual-core ARM with native USB (no Wi-Fi)

Ideal For

• Wi-Fi and Bluetooth IoT projects
• Compact wireless sensors and controllers
• Battery-powered low-power applications
• Projects requiring Bluetooth Classic (audio, SPP)
• Embedding into custom PCBs via castellated pads

Resources

• Adafruit QT Py ESP32 Pico Learning Guide