[physicsguy]

The issue with the MicroBit was that it wasn't really a well thought out initiative with multi year funding. They gave them out for free to one single school year, and then schools had to pay for them which meant practically that most schools didn't do anything with them because it wasn't worth the time investment. They were also late delivering, so didn't turn up at the start of the school year when they were supposed to but half way through the spring term. I helped do some training of teachers to use it in 2015 while I was doing my PhD, and they'd not even got the kit for their classes at that point.