30% Off! Was £20.83 ex VAT, now £14.58 

A development board that runs JavaScript!

The Original Espruino is development board that runs JavaScript code (it doesn't need to be plugged into a computer). You can program it with nothing but a serial terminal program, but there's also an IDE that runs in the Chrome Web browser. It's got a syntax highlighted editor as well as a graphical programming language.

Once you've uploaded code, you can inspect and change variables (including functions!) while your program is running.

There's loads of documentation, tutorials and support for a huge range of different hardware too.

See how to get started here, or if you have any questions ask away on our forums!


  • Less than half the size of a business card ( 54mm x 41mm )
  • STM32F103RCT6 32-bit 72MHz ARM Cortex M3 CPU
  • 256KB of Flash memory, 48KB of RAM
  • Micro USB connector
  • Input Voltage Range of 3.6v to 15v
  • Battery connector (JST PHR-2 2 Pin)
  • Built-in SD card connector
  • Red, Green and Blue LEDs
  • Pads to allow HC-05 Bluetooth modules to be added
  • 0.1" Pin spacing
  • 44 GPIO Pins, capable of: 26 PWM Pins, 16 ADC Pins, 3 USARTs, 2 SPI, 2 I2C and 2 DACs
  • Prototype area which can be used in many different configurations, for example: Servo Headers, Up to 14x 500mA outputs, 2x .NET Gadgeteer connectors, or NRF24L01+ wireless transceiver modules
  • Click here for full technical information

Inputs 2x Buttons (User, Reset), Temperature
Outputs RGB LEDs
GPIO (0.1") 44
GPIO (Other) 0
Features USB, SD Card, Prototype Area, Support for Bluetooth (HC-05/HC-06) module
RAM (kB) 48
Flash (kB) 256
Clockspeed (MHz) 72

Write a review

Note: HTML is not translated!
    Bad           Good

Espruino Original

  • Brands Espruino
  • Availability: 182
  • £17.50

  • Ex Tax: £14.58

  • 10 or more £22.00
  • 20 or more £20.00
  • 50 or more £19.00
  • 100 or more £18.00

Related Products

LiPo 3.7v Battery 400mAh (JST)

LiPo 3.7v Battery 400mAh (JST)

This is a 400mAh 3.7v LiPo battery with JST PH connector that can be used with any Espruino board wi..

£5.94 Ex Tax: £4.95

Adafruit CC3000 WiFi Breakout with Onboard Antenna - v1.0

Adafruit CC3000 WiFi Breakout with Onboard Antenna - v1.0

These are breakout boards for TI's CC3000 WiFi chip, as shown on https://www.adafruit.com/produ..

£48.00 Ex Tax: £40.00

Tags: Espruino