Espruino Pico

The Espruino Pico is a tiny USB stick that runs JavaScript directly on the device – no computer needed after programming. Write code in the Chrome-based IDE and have your project running in seconds, with real-time variable inspection while your code executes.

Featuring an ARM Cortex-M4 processor with 22 GPIO pins, this board is 5V tolerant for Arduino compatibility. The ultra-low sleep current means it can run for years on a single battery.

Key Features

• Runs JavaScript – Program in a familiar language
• Chrome Web IDE – Syntax highlighting and graphical programming
• Real-Time Debugging – Inspect and modify variables while running
• Built-in USB-A – Plug directly into any USB port
• 5V Tolerant – Arduino-compatible GPIO
• Ultra-Low Power – <0.05mA sleep current
• Stores Code Onboard – No external storage needed
• Two LEDs + Button – Built-in for immediate testing

Specifications

• Processor – STM32F401CDU6 (ARM Cortex-M4)
• Memory – 384KB Flash, 96KB RAM
• GPIO – 22 pins (9 analog, 21 PWM)
• Interfaces – 2× UART, 3× SPI, 3× I2C
• Input Voltage – 3.5V to 16V
• Output – 3.3V at 250mA
• Dimensions – 33mm × 15mm
• Sleep Current – <0.05mA

Ideal For

• JavaScript developers entering hardware
• Rapid prototyping
• Low-power IoT devices
• Learning embedded programming

Package Contents

• 1× Espruino Pico (with pin headers)

Resources

• Espruino Pico Documentation