Mikro.jsexperimental

TypeScript for microcontrollers

Modern JavaScript, type safety and fast refresh on real hardware.

Get Started

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Fast feedback loop
Interactive dev console with watch mode and incremental builds that deploy to your device in a few seconds.
Full TypeScript
Near-complete ES2024 support, type-checked hardware APIs, and editor autocomplete.
Batteries included*
GPIO, PWM, I2C, SPI, UART, WiFi, HTTP, UDP, NeoPixel, deep sleep, SNTP, CBOR, schema validation, key-value storage, and more.
Host simulator
Run your code on your computer with mikro sim dev. No microcontroller needed.
No exceptions
Typed Result errors instead of try/catch. Every expected failure is visible in the type signature.
Built-in testing
Test suites with resource leak detection and more. Run in the simulator or on a real device.

Your first program

Blinky: the "Hello, World!" of tiny devices.

import {DigitalOut
} from 'mikro/gpio'
import {sleep
} from 'mikro/sleep'

// Replace with your board's LED GPIO pin if different
const led
 = DigitalOut
(15).orPanic
('Failed to configure LED pin')

while (true) {
  led
.write
(1)
  await sleep
(500)
  led
.write
(0)
  await sleep
(500)
}

Get it running:

npmpnpmyarnbun

npm create mikro -- --template blinky

pnpm create mikro --template blinky

yarn create mikro --template blinky

bun create mikro --template blinky

Learn more

Getting Started: set up your first project step by step
Error Handling: learn how Mikro.js uses typed Results instead of exceptions
API Reference: explore GPIO, WiFi, I2C, SPI, and more
Examples: blinky, PWM, WiFi, NeoPixel, UART, and more

Mikro.jsexperimental

Fast feedback loop

Full TypeScript

Batteries included*

Host simulator

No exceptions

Built-in testing

Your first program ​

Learn more ​

Your first program

Learn more