标签: bbc

MicroPython已经移植到了 BBC micro:bit 上，可惜没有这个板子，只能先看看。不过这是给小学生玩的板子，我们还是看能不能自己DIY一个了。 BBC micro:bit使用了nRF51822，这是nordic公司的一个带有Cotecx-M0内核的蓝牙芯片。可以通过蓝牙下载程序。 下面是网上收集的一些相关资料：   Python网站上的项目介绍 https://www.python.org/community/microbit/   BBC上的项目介绍 http://www.bbc.co.uk/mediacentre/mediapacks/microbit     Github上的源码 https://github.com/dpgeorge/bbcmicrobit-micropython    

Nowadays we're inundated with hundreds of television channels. I would say that we are spoilt for choice if it wasn't for the fact that so much of what is presented is such utter dross (but that's a discussion for another time). By comparison, when I was a young lad around six years of age in Sheffield, England, we had only two television channels. The first was run by the British Broadcasting Corporation (BBC). This would eventually be called BBC 1 when they introduced BBC 2 in April 1964. The second channel was run by our local Independent Television (ITV) company. In those days of yore, the television stations would broadcast programs for only a few hours a day. The rest of the time the "test card" reigned supreme as the most watched daytime program. Real television came on around 4:00 p.m. with a selection of kid's programs. Due to the fact that both my parents worked, I spend my weekdays at the home of my Auntie Barbara, Uncle Nick, and Cousin Gillian (they lived "just around the corner" from our house). Sometime before the kids programs started, my cousin Gillian and I would plead to be let into the front room to watch the television. When we turned the TV on, we would be presented with the test card presented in black-and-white and shades of gray (it was not until years later that I realized the test card would appear in color if you happened to have a color TV ... because we didn't).   BBC test card circa 1963   As I recall, the test card was accompanied by a high-pitched whistle. Gillian and I would sit cross-legged on the floor watching the test card and listening to the whistle in great anticipation. A few minutes before the turn of the hour, the whistle would be replaced by some music. And then, exactly on the hour, the kids programs would start and we would bask in the glow of our good fortune until 6:00 p.m. when the news program would come on signaling the start of adult (boring) television. If you could add them all together, I wonder how many hundreds of thousands (or millions) of hours the kids across England spent watching that test card...