本书分3个章节进行了电子技术入门知识的介绍。第1章介绍电的产生、简单的电路识别知识。第2章介绍了主要电子元器件的基础知识，并介绍了相关电路实验、工具使用方法及简易电子制作项目等。第3章重点放在实际制作上，介绍了光控、声控、温控、遥控等趣味制作项目。
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