本期向初学者,特别是中、小学生介绍一种制作容易、实用性强的电子光控制作项目。这个制作项目,用相同的元器件,对电路稍加变换即可制成光控航标灯、光控报晓鸡、怕光的小狗等多种装置。你如果对这个制作感兴趣不妨跟我学着做。至于这个电路的工作原理,你先不要管它。工具准备 1.20W内热式电烙铁一把; 2.焊锡丝一根;焊锡膏少许; 3.沙纸1块或小刀1把; 4.酒精棉少许; 5.偏口钳或剪刀1把。认识元件 This issue introduces beginners, especially primary and secondary students with an easy-to-use and practical electronic light control project. This production project, with the same components, a slight change on the circuit can be made of light control beacon lights, light control reported chicken, light dog and other devices. If you are interested in this production may wish to learn to do with me. As for the working principle of this circuit, you do not care about it first. 1.20W electric tools to prepare a hot iron; 2. A solder wire; a little solder paste; 3. A piece of sandpaper or a knife; 4. Alcohol cotton a little; Know the components