First of all, as far as the appearance of the two versions of micro:bit is concerned, you can see that there are no major changes on the front side, and the differences are in three parts.
Capacitive touch receptor
Sound input hole and microphone activity indicator
The shape of the edge connector has changed to a dent
On the back, four changes can be seen.
Power status light
Hardware Specifications Comparison
In addition to the appearance differences mentioned above, micro:bit v2.0 has some upgrades in hardware specifications compared to v1.5.
Processor: The original Nordic nRF51822 has been upgraded to nRF52833, which greatly improves the processing performance.
Memory: the built-in memory from the original 256KB flash memory and 16KB RAM, increased to 512KB flash memory and 128KB RAM.
Wireless communication: upgraded from Bluetooth 4.0 to Bluetooth 5.0, allowing for longer transmission distance and faster speed.
Speaker: added to the back of the board, allowing creators to instantly play the music they create. It can simulate a bumblebee in flight, presenting vivid sound frequency, speed and volume depending on the speed of movement.
Sound sensor: added to the back of the board, while the front has a sound input hole, as well as a microphone activity indicator next to it, which lights up red when the microphone is in use. By using the microphone to detect sound, you can make the hearts on the micro:bit v2 jump by clapping your hands!
Touch sensor: copper-plated and set on the front of the upper, and v1.5 resistive touch different, the new version of the capacitive touch, use a bit like a cell phone.
Built-in shutdown / sleep mode: the original reset button on the back of the board, the new sleep and shutdown mode, through the long press of the button to turn off the board power, or to sleep mode.
While maintaining compatibility, the new version of micro:bit (V2) has a number of improvements over the old version, mainly in
Added microphone sensor
Added power saving mode
Uses better performance
Based on some optimizations made by micro:bit v2.0 version on the basis of v1.5, we recommend to choose v2.0 version with better performance.
The old version of micro:bit was great, why should I change it?
In the five years since micro:bit was designed, the micro:bit Education Foundation has been listening to the requests of educators. The process of updating micro:bit has opened up a range of new creative possibilities without removing anything or breaking the existing micro:bit experience, because stability is more important than any individual feature!
Can I continue to use micro:bit v1.5?
Yes. micro:bit v1.5 will still work in exactly the same way and will continue to be supported by Microsoft MakeCode and MicroPython. It will still be possible to use all resources in exactly the same way as before.
All programs created using the original micro:bit features will work on both the original and the new version of micro:bit, but of course headphones or speakers will need to be connected to the old micro:bit to hear the sound!
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