Adafruit ItsyBitsy ESP32
Ultra-compact ESP32 development board in the ItsyBitsy form factor with WiFi, Bluetooth Classic + BLE, USB-C, and LiPo charging — perfect for space-constrained wireless projects.
$14.95
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Specifications
Components
ESP32-PICO-MINI-02 module with dual-core Xtensa LX6 @ 240MHz, 8MB flash, 2MB PSRAM, integrated WiFi and Bluetooth
MCP73831 single-cell LiPo/LiIon battery charge management controller with programmable charge current
Bus Interfaces
GPIO Map
The Adafruit ItsyBitsy ESP32 is a tiny yet powerful development board built around the ESP32-PICO-MINI-02 module, packing dual-core 240MHz Xtensa LX6 processing, 8MB flash, 2MB PSRAM, and full WiFi 802.11 b/g/n plus Bluetooth Classic and BLE 4.2 into the compact 36×17.8mm ItsyBitsy form factor.
Despite its small size, the board exposes a generous set of I/O: 11 GPIO pins, 6 analog inputs, hardware I2C, SPI, and UART, plus LEDC PWM available on every GPIO. USB-C via a CP2102N bridge handles programming and serial communication, while an onboard MCP73831 LiPo charger lets you run the board from a rechargeable battery.
The ItsyBitsy ESP32 is compatible with Arduino, ESP-IDF, MicroPython, and CircuitPython, making it a versatile choice for IoT sensors, smart-home gadgets, wearables, and any wireless maker project where board real estate is at a premium. It fits directly into breadboards and can be soldered into tight enclosures where a full Feather or development board would not fit.
Use Cases
4IoT
Internet of Things applications including connected sensors, actuators, and smart devices that communicate over WiFi, BLE, LoRa, or other wireless protocols.
Smart Home
Home automation devices for controlling lighting, climate, security, and appliances.
Wearable
Body-worn computing devices including smartwatches, fitness bands, and health monitors.
Prototyping
Rapid hardware prototyping and proof-of-concept development with breadboard-friendly form factors and accessible development environments.
Resources
Where to Buy
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