micro:bit v2 is a brand new, super-charged version of the popular pocket-sized codeable computer, brought bang up to date with a microphone, speaker and upgraded processing capabilities.
micro：bit v2是流行的袖珍型可編碼計算機的全新超級充電版本，它通過麥克風，揚聲器和升級的處理功能帶來了最新消息。
With over four times the processing power and eight times as much RAM as the original micro:bit this new model opens up a world of new possibilities! We're especially excited about how well MicroPython will run on the new model where previously the limited RAM was a struggle.
擁有超過四倍的處理能力和八倍之多RAM作為原始微：位這種新模式開闢了新的可能性的世界！我們對MicroPython在新模型上運行得如何感到特別興奮，而以前有限的RAM一直是個難題。 操作影片-1：https://youtu.be/pIUJ4kvJ_QU
操作影片-2：https://youtu.be/waIdGCitbH4
實拍影片-1：https://youtu.be/JYvUnb2zImk
實拍影片-2：https://youtu.be/KbB6-6Nn19U
實拍影片-3：https://youtu.be/cw_rDuByN_8
實拍影片-4：https://youtu.be/9xpvNcYtd6Q
micro:bit V2.2 的主要特點
- 板上有 25 個 LED 矩陣，您可以在其中滾動消息或顯示數字
- 加速度計檢測運動或傾斜
- 羅盤
- 藍牙連接以與互聯網或其他設備進行交互
- 2個用戶輸入按鈕
- 微型 USB 連接，可與 PC 一起使用以進行編程
- 電池組端口
- ARM Cortex-M4 CPU
- 內置揚聲器和麥克風
- 沿板底部的 20 針邊緣連接器
Features
- Upgraded processor (nRF52833) 升級
- 64MHz Arm Cortex-M4 + FPU (over 4 times faster!) 快4倍
- 512KB Flash storage on board
- 128KB RAM
- MEMS Microphone with LED indicator and on-board speaker
- 5x5 LED matrix display
- Touch sensitive logo "button"
- Accelerometer/compass
- Light and temperature sensors
- Sleep/off mode for batteries powered projects (w/ LED indicator)
- Up to 200mA of current for external accessories
- Bluetooth 5.0 radio allowing micro:bits to talk to each other
- Notched edge connector (easier to connect things like crocodile clips and conductive thread)缺口邊緣連接器（更易於連接鱷魚夾和導電線等東西）
- Dimensions: 52mm x 42mm x 11.7mm
It's the same shape and size so should be already familiar to countless teachers and learners, and also compatible with the vast majority of
add-on boards and accessories.
它具有相同的形狀和大小，因此應為無數的教師和學習者所熟悉，並且與絕大多數附加板和配件兼容。
Comparison between the current version (v1.5) and the latest version (v2.0)
| | Current Version (v1.5) | Latest Version(v2) |
| Processor | Nordic Semiconductor nRF51822 | Nordic Semiconductor nRF52833 |
| Memory | 256KB Flash, 16KB RAM | 512KB Flash, 128KB RAM |
| Interface | NXP KL26Z, 16KB RAM | NXP KL27Z, 32KB RAM |
| Microphone | N/A | MEMS microphone and LED indicator |
| Speaker | N/A | On-board speaker |
| Logo touch | N/A | Touch-sensitive logo |
| Edge Connector | 25 pins. 3 dedicated GPIO, PWM, I2C, SPI and ext.power. 3 ring pins for connecting crocodile clips/banana plugs | 25 pins. 4 dedicated GPIO, PWM, I2C, SPI and ext.power. 3 ring pins for connecting crocodile clips/banana plugs. Notched for easier connection |
| I2C | Shared I2C bus | Dedicated I2C bus for peripherals |
| Wireless | 2.4GHz micro:bit Radio/BLE Bluetooth 4.0 | 2.4GHz micro:bit Radio/BLE Bluetooth 5.0 |
| Power | 5V via micro-USB port, 3V via edge connector or battery pack | 5V via micro-USB port, 3V via edge connector or battery pack, LED power indicator, Power off (push and hold power button |
| Current available | 90mA available for accessories | 200mA available for accessories |
| Motion Sensor | ST LSM 303 | ST LSM 303 |
| Software | C++, MakeCode, Python, Scratch | C++, MakeCode, Python, Scratch |
| Size | 5cm(w) x 4cm(h) | 5cm(w) x 4cm(h) |
micro: bit V1.5和V2.0有什麼區別？
How does the BBC micro:bit work? 如何運作？
It's programmed with beginner friendly, drag and drop interface
MakeCode with the option to progress into MicroPython later on, opening up even more programming possibilities!
It's packed with inputs, outputs, sensors and radio communication features that can be combined into and endless variety of projects.
它包含輸入，輸出，傳感器和無線電通信功能，可以組合成無數個項目。
Inputs and outputs: An important part of any computer system. As a very small computer, the BBC micro:bit has plenty of inputs and outputs to learn about and use.
輸入和輸出：任何計算機系統的重要組成部分。作為一台非常小的計算機，BBC micro：bit具有大量的輸入和輸出以供學習和使用。
LEDs: An LED, or light-emitting diode is an output device that gives off light. Your BBC micro:bit has a display of 25 LEDs for you to program.
LED：LED或發光二極管是一種發出光的輸出設備。您的BBC micro：bit具有25個LED的顯示屏供您編程。
Buttons: A very common input device. Your micro:bit has two "clicky" buttons and a touch sensitive button you can program, and a reset button.
按鈕：一種非常常見的輸入設備。您的micro：bit具有兩個“ clicky”按鈕和一個可以編程的觸敏按鈕，以及一個重置按鈕。
Radio: A way of sending and receiving messages and BBC micro:bits can use radio waves to communicate with each other.
無線電：一種發送和接收消息的方式，BBC micro：bit可以使用無線電波相互通信。
Accelerometer: A motion sensor that measures movement. The accelerometer in your BBC micro:bit detects when you tilt it left to right, backwards and forwards and up and down.
加速度計：測量運動的運動傳感器。BBC micro：bit中的加速度計可檢測您何時向左，向右，向前，向上和向下傾斜。
Compass: An input sensor that detects magnetic fields. Your BBC micro:bit has an inbuilt compass that can detect the direction in which it is facing.
指南針：一種檢測磁場的輸入傳感器。您的BBC micro：bit具有內置的指南針，可以檢測其面對的方向。
Light sensor: An input device that measures light levels. Your BBC micro:bit uses the LEDs to sense the levels of light and lets you program your micro:bit as a light sensor.
光線傳感器：一種測量光線水平的輸入設備。您的BBC micro：bit使用LED感應光的水平，並讓您將micro：bit編程為光傳感器。
