Espruino WiFi
The Espruino WiFi is a tiny WiFi-enabled development board that runs JavaScript directly — no computer connection required after programming. Built around the STM32F411 (Arm Cortex-M4 at 100 MHz) with an ESP8266 WiFi module, it lets you write, upload, and debug JavaScript code using the Espruino Web IDE in Chrome.
Your source code is stored on the board itself, so you can revisit and modify projects at any time. The IDE features a syntax-highlighted editor, graphical programming language, and live variable inspection while your program runs.
Key Features
- JavaScript Runtime – Write and run JavaScript directly on the microcontroller
- WiFi Built-In – ESP8266 (802.11 b/g/n) for wireless connectivity
- STM32F411 MCU – Arm Cortex-M4 at 100 MHz, 512 KB flash, 128 KB RAM
- Live Debugging – Inspect and change variables while code is running
- Source Code On Board – Your code is stored on the device for future access
- 5V Tolerant GPIO – All 21 GPIO pins are Arduino-compatible
- Ultra-Low Sleep Current – <0.05 mA in sleep mode (~2.5 years on a 2500 mAh battery)
Specifications
- MCU – STM32F411CEU6 (Arm Cortex-M4, 100 MHz)
- Memory – 512 KB flash, 128 KB RAM
- WiFi – ESP8266 (802.11 b/g/n)
- GPIO – 21 pins (8 analog inputs, 20 PWM, 1 serial, 3 SPI, 3 I2C)
- USB – Micro-USB connector
- Voltage Regulator – 3.3V, 250 mA (accepts 3.5–5V input)
- Sleep Current – <0.05 mA
- Protection – 500 mA polyfuse
- RTC – With external oscillator
- LEDs – 3 (2× user programmable, 1× WiFi activity)
- Button – 1× onboard
- Dimensions – 30 × 23 mm
- Pin Layout – 2 rows of 11 × 0.1″ pins + 2 extra holes
Ideal For
- JavaScript-based IoT projects
- Rapid prototyping with a familiar language
- WiFi-connected sensors and actuators
- Battery-powered wireless devices
Package Contents
- 1× Espruino WiFi Board
Resources
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Espruino WiFi is a tiny WiFi-enabled development board that runs JavaScript directly — no computer connection required after programming. Built around the STM32F411 (Arm Cortex-M4 at 100 MHz) with an ESP8266 WiFi module, it lets you write, upload, and debug JavaScript code using the Espruino Web IDE in Chrome.
Your source code is stored on the board itself, so you can revisit and modify projects at any time. The IDE features a syntax-highlighted editor, graphical programming language, and live variable inspection while your program runs.
Key Features
- JavaScript Runtime – Write and run JavaScript directly on the microcontroller
- WiFi Built-In – ESP8266 (802.11 b/g/n) for wireless connectivity
- STM32F411 MCU – Arm Cortex-M4 at 100 MHz, 512 KB flash, 128 KB RAM
- Live Debugging – Inspect and change variables while code is running
- Source Code On Board – Your code is stored on the device for future access
- 5V Tolerant GPIO – All 21 GPIO pins are Arduino-compatible
- Ultra-Low Sleep Current – <0.05 mA in sleep mode (~2.5 years on a 2500 mAh battery)
Specifications
- MCU – STM32F411CEU6 (Arm Cortex-M4, 100 MHz)
- Memory – 512 KB flash, 128 KB RAM
- WiFi – ESP8266 (802.11 b/g/n)
- GPIO – 21 pins (8 analog inputs, 20 PWM, 1 serial, 3 SPI, 3 I2C)
- USB – Micro-USB connector
- Voltage Regulator – 3.3V, 250 mA (accepts 3.5–5V input)
- Sleep Current – <0.05 mA
- Protection – 500 mA polyfuse
- RTC – With external oscillator
- LEDs – 3 (2× user programmable, 1× WiFi activity)
- Button – 1× onboard
- Dimensions – 30 × 23 mm
- Pin Layout – 2 rows of 11 × 0.1″ pins + 2 extra holes
Ideal For
- JavaScript-based IoT projects
- Rapid prototyping with a familiar language
- WiFi-connected sensors and actuators
- Battery-powered wireless devices
Package Contents
- 1× Espruino WiFi Board
