这个是 Arduino 最经典的报错。 九成是开发板型号选错了 ——比如板子其实是 Uno，你在列表里选了 Nano。 回第五节重新选。 「装的时候杀毒软件报警。 开源软件没有商业数字签名，某些杀软会拦。 点「更多信息」→「仍要运行」就能过。

本内容遵循CC 4.0 BY-SA版权协议 本教程面向零基础学习者，系统讲解Arduino Uno开发板的硬件结构、IDE环境搭建、数字/模拟I/O编程 ...

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Hello! We are the Switch-On Lab Electronics Club. To put it briefly, if you are buying an Arduino for the first time, we recommend choosing from the two types in the "Arduino UNO R4" series (Minima or ...

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