Hopefully, all the videos on the site are accessible to international viewers, otherwise it would be a missed opportunity to spread the knowledge to everyone.
Yeah I waited for a while to see if a US seller would appear but ended up buying one at pimoroni. glad I stopped waiting, its really fun to tinker with.
You can use any nRF51822 board, and there are a lot available. I'd probably get the official dev kit as it is pretty cheap and can be used to program bare nRF5x chips (it has a segger programmer on board).
That used to be the case, but have a look at the new mbed exporters - you can now export to:
uVision 4
uVision 5
DS-5
LPCXpresso
IAR Embedded Workbench
CooCox CoIDE
Kinetis Design Studio
Simplicity Studio
Atmel Studio
SW4STM32 Systems Workbench
e2studio
Emblocks
While that is certainly good, people using Arduino now aren't going to spend £1k on IAR or whatever. Emblocks always seemed like a good option but as far as I can tell it isn't developed any more.
Qt Creator, Visual Studio Code, KDevelop etc. would be more welcome. I did write an exporter for Qt Creator actually a year or two ago and abandoned it after the move to Yotta. Guess it is time to revive it!
We (Pimoroni) offer shipping worldwide, though obviously that's likely more expensive than using a local vendor if you can find one. We also have a range of other accessories like a nice breadboarding breakout for the IO pins: https://shop.pimoroni.com/collections/micro-bit
I bought mine from Pimoroni. Took two weeks to get to California. I paid in bitcoin so I'm not sure what the exact cost was in dollars. I bought two more for other people.
Much simpler for beginners. And they sell a coin cell add on board so your kid can carry it around and show people. Or put it on a lanyard.
I'm assuming someone will try to drive close-enough NTSC/PAL signals from the analog outputs, and create (a) demoscene demos and (b) Doom. Any links to such hijinks yet?
I think you underestimate how much having something tactile, with buttons and LEDs, can really shift how younger students perceive learning. I volunteer teach a group of 8/9 year olds an intro to programming class and the difference between teaching them Python using CLI-esque tools and making things light up on the micro:bit is astounding.
5-11 -> Primary School
11-16 -> Secondary School
16-18 -> Further Education (often called college, or Sixth Form)
18-21/22 -> Higher Education (University/undergraduate)
Some secondary schools are large enough/have enough expertise to have a Sixth Form as part of it. Some children go to "preparatory school" until age 13 when they enter a secondary school.
One if my children (12yro) was given a microbit by his school and got a lot of enjoyment from programming it. He was already into Python, but it seemed to me that a physical device made programming less abstract and it's limited power forced him to focus on essentials.
I would like to once more criticize the fact that BBC re-invented the wheel (and micro:bit) at a time where $5 Raspberry Pi 0 is widely available.
It would have been much better to spend the effort of producing better learning software and ecosystem for Raspberry Pi instead.
Someone boasted about the lengths it took to make Python run on micro:bit and it still isn't full Python and no chance for anything graphically intensive, whereas you can code Minecraft on Raspberry Pi and actually plug it to your TV.
I somewhat agree, but would like to counter by saying that the micro:bit has been an invaluable tool for me personally to teach fundamental hardware programming. The pi zero, while a great tool for more advanced programming, still requires some boilerplate knowledge of electrical engineering that surpasses what one would want to teach someone who just wants to make some lights flash.
The micro:bit has, built in: a 5×5 array of leds, an accelerometer, a digital compass, 2 push buttons, a set of piezo / touch io, and a low-power bluetooth radio — all of which have api libraries and documentation that a user doesn't need to write themselves.
While there are a multitude of awesome things that can be done with the pi zero, there's still a non-trivial amount of setup required to program basic hardware features.
The RPi Zero was not available when the micro:bit project kicked off - indeed, the micro:bit was planned for release last September. This is about ease of development (in particular in terms of not requiring any toolchain setup) and immediate interaction with physical things.
I continue to believe its a bit more nuanced than that.
I agree that if you just want to teach Python programming that a RasPi (original model is fine), a TV and a keyboard is really all you need.
I also believe that some folks are more systems oriented and would like to learn about "computers" as opposed to "programming computers". Much of the success in the embedded world comes from people who want to understand the way the computer starts from scratch and then runs its completed program. It is more difficult to serve those folks by starting with a Cortex-A architecture device.
I know everybody already got on your case about this but just want to say its all about narrowing the scope. The microbit is much more accessible. It has a narrow range of use cases that really makes it easy to choose projects. It is plug and play, no flashing, no other parts required (no mini Hdmi adapter, everybody has a microUSB cable around).
PiBakery has helped make setting up a pi easier though.