![乐高机器人:Scratch与WeDo编程基础实战应用](https://wfqqreader-1252317822.image.myqcloud.com/cover/707/31251707/b_31251707.jpg)
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2.2 WeDo 2.0模块详解
认识图标
1.电动机(马达)
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_01.jpg?sign=1739253624-y1d321KALgLdME8mdT3NuFapRAWViEod-0-809b3724743703b6498853624db6021b)
电动机功率
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_02.jpg?sign=1739253624-lihpD7t1aRYiGyAPQsDVcXxntQFRfYhI-0-84ab31a31cf817bb034518c99371eb4d)
电动机等待
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_03.jpg?sign=1739253624-2XVIGbU6sgf4l52TWqacytQm1BOZWqvT-0-c69b16000d5a40600a0bc11d4abeab6e)
电动机停止
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_04.jpg?sign=1739253624-FkuY77CqbO2PsgkinLkiuvbH93sLlusm-0-0529b3361a1d312c0f39951a9401e22d)
电动机正转
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_05.jpg?sign=1739253624-TQWHrIbOplL3K5jeQHmB8wXK1YwByJOu-0-c5361e8056eb82f50e1a7e7b866c0032)
电动机反转
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_06.jpg?sign=1739253624-C1kYE6RO8yn2TrJfghNzM9GozVfNCDI0-0-8de127d923f77e4ad2b389b07043d14c)
指示灯
2.显示图标
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_07.jpg?sign=1739253624-oIddygr5n5mSTGofHXP1uvsmeRQymvDq-0-3f254675ad31ea50d6d9b3e8c63ebb4e)
图片
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_08.jpg?sign=1739253624-gdQ9TuhgeyuNzXSVoTso0w91UMkyNI5s-0-871d7cee3e0cd3c0b85e4bb0d100bfcb)
文本
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_09.jpg?sign=1739253624-Q9JVNCa1f730iaVNeH6CSZPD9R4xnqKi-0-9749dc5aa92dcc73bbc49cfe21277655)
运算符
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_10.jpg?sign=1739253624-GYrOyclFhJqDvgrHfAnm6cnypUAyOp6U-0-f57d7ed8e8bcd771cad182992b096938)
中屏显示
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_11.jpg?sign=1739253624-vPiKW7krcq2eO7lRIWJH9lx5lnMFkfrV-0-a36b944be76df4273a6b6c06fb94cae5)
播放音乐
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_12.jpg?sign=1739253624-edir5TBcj9GmfuBUY9l734mYog0VM98I-0-c8b959954195a6799df73bb9fc309e47)
全屏显示
3.流程控制
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_01.jpg?sign=1739253624-68qc7XsDPo7x0b1X07L4GhHKVvFKEYUu-0-2d4a40ccc70e91d2750a22ed2d31093a)
开始
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_02.jpg?sign=1739253624-cmPGfSjH14rI8RvEqsyOKk4zJ0EhXqng-0-8d37c123c4b8073922973734c4017c9a)
按键开始
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_03.jpg?sign=1739253624-k6qsLJphR3rEUL0xQL8xNBIAQFp5y9s4-0-f097c8886f91e89fa4d227d31cba7c37)
信息开始
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_04.jpg?sign=1739253624-9J98t4l3RgPTqv2UbkjE3bpPlGzchEOc-0-b4a1a6f368079935d0a0fb97f232316d)
信息发送
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_05.jpg?sign=1739253624-7fSrOr6bcZWZjg1Db1ivcOvxiOW41ky2-0-4879dd3d0dea910ca69e2e931e40225e)
等待
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_06.jpg?sign=1739253624-ljuXsPQDAjOj5o2rz17YOcfn2QLd3hHy-0-be36ec89c9d9c1fb6dc19d3e5e32829f)
循环
4.赋值图标
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_07.jpg?sign=1739253624-8PHmrGW4b4q5N9rZvac9rZBTLzXmOtkl-0-6b75b72e9405ee4c8eadd09eb0b18551)
输入数字
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_08.jpg?sign=1739253624-S7Qud0pwrusjpnwWUNxA8z1ZFHLGux3K-0-4d074f2a946ccb3967cf3ae928b34705)
输入文本
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_09.jpg?sign=1739253624-Sdfhbw2cu1Oq9RQmrJkcX8PmXwlQez3O-0-fcbe9813bef41100efedbad5067935bb)
随机数字
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_10.jpg?sign=1739253624-4R0cEo62LJNKX1VXAwlnlys6SHz6Q7MT-0-3fa50a89a278bcac1b0ea6b6193e29b0)
动态数字(变量)
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_11.jpg?sign=1739253624-2a9Yb9QdeCZArcf9C2MDiFiuT2rq05W3-0-efdfee10a07694efc68b7bea026465d5)
检测声音
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_12.jpg?sign=1739253624-BrIctkmpUXQyimJsigyON2i8ryzAEBEi-0-670c158e85b3e88bc9a6c0c9f4671396)
检测运动
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_13.jpg?sign=1739253624-tsCPUmvZ44LWpQPYMgbrHneC8yPVan7w-0-c3d04424c1aa23e22994e0d41815177d)
检测平衡
传感器
以下是平衡(倾斜)传感器的6种状态。
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_01.jpg?sign=1739253624-AMCycjazZpWIiuCbRbasBDRO90dk5P2S-0-25ef3172602150684dfb14ae5fe817c2)
后倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_02.jpg?sign=1739253624-TPDuiu36SBxlIhHGhtEHB2YYGkdGA4ib-0-9eea5f4ecd106845d5ea570fdf1acb80)
前倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_03.jpg?sign=1739253624-K0dTbanngMq2sOpOTjahIwLKka4loBKW-0-b3b5087eccd4017c5c96b2630313a920)
右倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_04.jpg?sign=1739253624-DIsimKZgcmVYZEPnEztI9NqstEnEp42M-0-43f85dfc7db644dde23ae053e01df5f1)
左倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_05.jpg?sign=1739253624-ngF0O6RBAdBnrd7XYqAc8Vb5g7GEMffO-0-cdf453836f1111bf0eccc081baf9748b)
平置
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_06.jpg?sign=1739253624-xsSSDO58uSXpRl8wF4lKNqdTHOsY5eRt-0-83dbd65cf88cceb20cb91c8eb03a2b87)
震动
以下是运动(距离)传感器的4种状态。
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_07.jpg?sign=1739253624-h9owLWjkhkjiLxEIOhV8pgMDZmNJDsqx-0-aaa1fff9415eb65c3dff0288c9f6e08e)
远近(任何距离变化)
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_08.jpg?sign=1739253624-gCqbWubO8TA3H0qDoZUgfi9lf0GULXwQ-0-9a0c06c8c9fed5b22df8854e4af6f19d)
靠近
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_09.jpg?sign=1739253624-5wL8DJTMWRdrdpQ3VMktOqCYYImMXU7B-0-6ec87823722ac593b9e4d5926afe7160)
远离
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_10.jpg?sign=1739253624-WT7iFL8Fz4o3OXyIBOqTibk4ylRa8IOu-0-160264efa58168f133eec0ba8c8dbece)
读数(向程序块输入运动传感器检测到的数值,0~10)
执行顺序
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/43_01.jpg?sign=1739253624-zlH6nSo7QGDT19g9QsSK46haznyC4Ri4-0-d3d0462d1445d1d293c4ed2e792720d6)
WeDo按从左到右的顺序执行程序
条件判断
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/43_02.jpg?sign=1739253624-D4VPWkHZg1aW0hd3TrNz9uAbO7lfVf5p-0-aaa5c97aea214f3da02fcd7c129deb20)
移近和离开
循环
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/43_03.jpg?sign=1739253624-2Os4HceRj7sYLSAzy7Ah02Y0xTCAapbn-0-a64f6493b5c4a8635b79702b072007c6)
循环4次
并行程序
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/44_01.jpg?sign=1739253624-pthrd4gYxsz2xF55kLOfefhzggmepR5l-0-5bc6d7450814a0aebeccd6bcb9d1eba3)
按A启动程序,同时运行两个循环检测。
发送消息
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/44_02.jpg?sign=1739253624-oKX4OIsO2XGAXEzq8EzhwVOfjb7wjMT0-0-915037665f3d76f874014cf066a994ff)
发送消息abc,同时启动“显示”和“音乐”。
发送随机信息
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/44_03.jpg?sign=1739253624-TWwiVUTxlzQ9Qo3Pl1mRhTWLCuHK7G9U-0-bb5a0ee76874b6081d76fd28c4bb83d6)
显示随机数和发送随机数。
运算
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/45_01.jpg?sign=1739253624-s9ZA357iAyEKhSM52Dhy2FSCbe6dFZjG-0-4e495ed8b2308ecd06018c9db0e0affe)
认识图标:动态数字(变量)
加法
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/45_02.jpg?sign=1739253624-f0JryOqVqcNI0siRvagrt7Z9zGt3MGcF-0-0660804bbbfc6e0552931e9b7abb3e56)
使用WeDo 2.0编程:3+6=9
常用运算程序
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/45_03.jpg?sign=1739253624-ik9tfhvlkqhUnxdZrasnAL3xTBF2dGWS-0-d1fe1357cc0d69190557858c55a05ebe)
乘于速度
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/45_04.jpg?sign=1739253624-W9I8w66TaaX6JVLNtRbbziU2xqkBfGKm-0-594898e4f3857cee411c55df97bbfa7f)
降低速度