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lines changed Original file line number Diff line number Diff line change 11# Document
22- 前提准备：[ 第一次使用必看] ( https://github.com/aJantes/Initialize-the-board/blob/master/readme.md )
3- - 硬件介绍：[ BPI: bit (ESP32)] ( https://github.com/aJantes/introduce-bpi-bit/blob/master/readme.md )
3+ - 硬件介绍：
4+ 1 . [ BPI: bit (ESP32)] ( https://github.com/aJantes/introduce-bpi-bit/blob/master/readme.md )
5+ 2 . [ LED灯WS2812B] ( https://github.com/BPI-STEAM/BPI-BIT/blob/master/doc/WS2812B.pdf )
46- 编程工具：[ pycharm] ( https://github.com/aJantes/use-pycharm/blob/master/readme.md )
57## LED矩阵上显示文字
68在BPI: bit (ESP32)显示想要的文字
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1517### 字符颜色改变
1618 相比于microbit，bpibit的led面板采用的是可编程的RGB灯(ws2812b)
17- [ 点击查看WS2812B更详细的信息] ( https://github.com/BPI-STEAM/BPI-BIT/blob/master/doc/WS2812B.pdf )
18- ![ ws2812] ( rollingText_album/ws2812.png )
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2019这种RGB灯通过编程理论上可以显示255 * 255 * 255种颜色，也就是1600万种颜色
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