Micro:bit Educational Foundation | micro:bit
Micro Bit - Wikiwand

carlosperate/awesome-microbit: A curated list of BBC micro:bit resources.
Welcome to micro:mag - micro:mag

v1.5, 43x52mm, with builtin:

5x5 dot matrix
bluetooth
accelerometer
magnetometer
thermometer
light sensor
compass
2 buttons
PH2.0 3-3.7V power

bbcmicrobit/hardware: Hardware designs for the BBC micro:bit
Micro:bit Hardware
micro:bit Power Consumption | REUK.co.uk

Getting Started with micro:bit - YouTube by SparkFun
micro:bit Tutorial Series - YouTube
智能学习-micro:bit 开发板

Bitty Software
IchigonQuest for micro:bit - YouTube

micro:bit Power Consumption | REUK.co.uk

microbit & accessories from Kitronik
Micro:bit 技術發展歷程觀察 – circuitcellar

Pinout/GPIO

pinout
micro:bit pins

Pin #0 - large pad - analog in
Pin #1 - large pad - analog in
Pin #2 - large pad - analog in
Pin #3 - analog in, also used for LED matrix
Pin #4 - analog in, also used for LED matrix
Pin #5 - also used for Button A
Pin #6 - also used for LED matrix
Pin #7 - also used for LED matrix
Pin #8
Pin #9 - also used for LED matrix
Pin #10 - analog in, also used for LED matrix
Pin #11 - also used for Button B
Pin #12
Pin #13 - also available as SPI clock
Pin #14 - also available as SPI MISO
Pin #15 - also available as SPI MOSI
Pin #16 - also available as SPI Chip Select
Pin #17 - +3.3V
Pin #18 - +3.3V
Pin #19 - also available as I2C clock (SCL)
Pin #20 - also available as I2C data (SCA)

Edge Connector Data Sheet
Note different pins have different pull up/down resistance
Using shared pins will trigger unexpected behaviors. Avoid them if possible.

Buttons (5, 11)
LEDs (3, 4, 6, 7, 9, 10)
Disable LEDs with led.enable(false) before used the pins (light sensing will also be disabled)
Accessibility (12)
Reserved for toggling the chip's accessibility mode and should not be used
I2C (19, 20)
on board motion sensor is connected to I2C bus, do not use these other than for I2C
(otherwise micro:bit might fail to boot)

Power Supply
max input current: 120mA
power usage: 30mA
max current for pins: 90mA

BBC micro:bit pinout - Espruino
micro:bit Analog Inputs | The Meandering Pi and Friends using 1.2V as reference for ADC

micro:bit IoT In C - First Steps With The GPIO

吉哥的分享 - micro:bit 的 P0 腳位按法 the touch sensor response to touch and remove, do not touch and hold

see learn-to-code-kids.md#capacitive-touch-sensor

Education

Intro to CS - Microsoft MakeCode !important, 14 week Introduction to Computer Science course
From Getting Started to Games - starting Computer Science with the BBC micro:bit | micro:bit
Physical Computing with the Micro:Bit 10 Lesson Unit on Physical Computing with the Micro:Bit
microbit for primary schools – Schemes of work, lesson plans and resources for teachers
Lessons - Microsoft MakeCode
hastklass micro:bit of Things

Coding Environment

Let's Code | micro:bit Web Editors

`.hex` file format

Intel HEX - Wikiwand

.HEX file format
Python source code is embedded at address 0x3E000, source code in the above link.

Locking and unlocking Makecode Editor .hex files : Support
pxt/source-embedding.md at 437f53ca6311335c7f3f75a062ec1079b4e7806a · Microsoft/pxt · GitHub
JavaScript source is embedded as JSON at 0x20000000.
Locking and unlocking Javascript Blocks Editor .hex files : Support

Intel HEX file Viewer
bialix/intelhex: Python IntelHex library
nrf-intel-hex | Yet another parser for “Intel HEX” files. JavaScript

JavaScript

Microsoft MakeCode for micro:bit
Reference - Microsoft MakeCode
Valid JavaScript can also be converted to blocks

Device - Microsoft MakeCode

In JavaScript mode, the left panel have an "Explorer" tree in which you can see the source code of the modules (built-in and external) used in project. You can even delete Block mode in "Explorer".

Microsoft/pxt-microbit: A Blocks / JavaScript code editor for the micro:bit built on Microsoft MakeCode

Micro:bit offline App

Makecode-Kittenbot
真·Makecode 离线版本下载，串口演示教程（201811111 更新 3.4 版本） - Micro:bit&Robot:bit - Kittenbot 小喵科技——专注图形化编程教育 - Powered by Discuz!

Sharable link

When you share the project, an unique ID will be generated:
https://makecode.microbit.org/_EzCf5hfdxif2

The ID can be used to embed the simulator in web site.

<div style="position:relative;height:0;padding-bottom:81.97%;overflow:hidden;">
  <iframe
    style="position:absolute;top:0;left:0;width:100%;height:100%;"
    src="https://makecode.microbit.org/---run?id=_EzCf5hfdxif2"
    allowfullscreen="allowfullscreen"
    sandbox="allow-popups allow-forms allow-scripts allow-same-origin"
    frameborder="0"
  ></iframe>
</div>

PXT

Microsoft/pxt: Microsoft MakeCode (PXT - Programming eXperience Toolkit)
Microsoft/pxt-microbit: A Blocks / JavaScript code editor for the micro:bit built on Microsoft MakeCode
pxt-microbit - npm

also depends on C Runtime

kadok0520/pxt-microbit - Docker Hub
趣味の電子工作: chibi:bit (micro:bit)の PXT 開発環境(Microsoft Make Code)を自宅に構築する

Extensions (libraries)

Extensions
MakeCode extensions

makecode-extensions
Tinkertanker
shaoziyang/microbit-lib: all kinds of microbit python drives, libs, examples, etc.
lioujj / Repositories

Microsoft/pxt-neopixel: A Neo-Pixel package for pxt-microbit
Microsoft/pxt-sonar: A Microsoft MakeCode package to handle sonar sensors and pings
philipphenkel/pxt-powerfunctions: MakeCode package that turns your micro:bit and Calliope-Mini into a remote control for LEGO Power Functions
Microsoft/pxt-bluedot: A PXT package to support the BlueDot app - beta
Tinkertanker/pxt-oled-ssd1306: Tinkercademy MakeCode package for using the SSD1306 OLED controller with micro:bit
sparkfun/pxt-gamer-bit: SparkFun gamer:bit package for Microsoft MakeCode - beta
MonadnockSystems/pxt-dht11

microbit-lib/lcd/I2C_LCD1602 at master · shaoziyang/microbit-lib
KittenBot/pxt-powerbrick

Espruino

BBC micro:bit - Espruino

Another JavaScript runtime, no block programming support

Scratch

Scratch - micro:bit
首页 - Mind+ 重装归来 - Mind+官网

Scratch cards for micro:bit | micro:bit
EduMakerLab STEAM 實驗室: 小玩 Scratch 3.0 之 micro:bit 篇
 Micro:bit Scratch 課程系列介紹 :: Microbit & STEAM Shop

MicroPython

MicroPython API is synchronous and do not implement all of Python 3's feature

Micro:bit - Python editor
Mu editor(Micropython)-Kittenbot

BBC micro:bit MicroPython documentation
whaleygeek/microbit_python: Various micro:bit python code examples

Tour of MicroPython on BBC micro:bit with Tony D! @micropython @microbit_edu - YouTube
MicroPython on the micro:bit in 60 minutes - RARESchool

MicroBlocks

MicroBlocks: Small, Fast, Human Friendly

Over serial/network

Serial - Microsoft MakeCode
How do I use the serial port on Windows : Support
Mbed OS Documentation | Tutorials

The micro:bit should show up as /tty/USB* or /tty/ACM after plugging-in.
Add your user to the group of the device, e.g. sudo usermod -G dialout -a ${USER}
Baud rate: 115200, 8N1

吉哥的分享 - micro:bit 數字鋼琴
 吉哥的分享 - 序列埠和 micro:bit 溝通

That IoT Thing: Pairing a BBC micro:bit with a Raspberry Pi using BlueZ
Raspberry 樹莓派 & Micro:bit :: Microbit & STEAM Shop