JavaScript on Microcontrollers

A presentation at YGLF Lithuania in May 2019 in Vilnius, Lithuania by Niels Leenheer

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JavaScript on Microcontrollers

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I am Niels Leenheer

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I tweet at @html5test

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I suck at drawing

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I the web

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I electronics

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Why should I care about this?

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electronics + web = IoT

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IoT can be very useful.

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IoT can be very interesting.

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IoT can be very fun.

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JavaScript on Microcontrollers

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but

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Microcontrollers are slow.

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sloooooooooooooo

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Raspberry Pi Zero W 1 GHz CPU and 512MB RAM

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micro:bit 16 MHz CPU and 16KB RAM

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micro:bit 16 MHz CPU and 16KiB RAM

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60 x faster

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30.000 x memory

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“ JavaScript on microcontrollers? Are you crazy? Me – two years ago

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JavaScript is easy.

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Microcontrollers are very power efficient.

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Microcontrollers only need to be fast enough to solve the probem.

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Microcontrollers do not have an operating system.

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Microcontrollers do not need 45 seconds to boot.

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how

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Espruino

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Espruino is a JavaScript interpreter for microcontrollers.

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Espressif ESP8266 & ESP32

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NodeMCU

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Nordic Semiconductor nRF52

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Puck.js

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Pixl.js

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micro:bit

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Thingy:52

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demo

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Experimental technology

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#1 Connected lightbulb

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#2 Pixelart display

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#3 Remote controlled car

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