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APP INVENTOR硬件交互学习教程11——滑条控制舵机 - 创客硬件开发 - 清泛IT...
这节我们通过滑条控件控制舵机动作。
1.界面设计
增加滑条控件和标签控件，滑条控制舵机动作，标签显示滑条数值。
2.逻辑设计
增加当滑条改变时，显示和发送指令给下位机
3.工程参考
how to POST/Submit an Input Checkbox that is disabled?
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answered Jan 18 '11 at 19:11
Francesco LauritaFrancesco Laurita
22.4k77 gold badges5151 silver badges6363 bronze badges
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CROSS JOIN vs INNER JOIN in SQL
...ross join with a ,)
– modulitos
Jun 11 '14 at 23:06
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@Lucas that is the old syntax for joins, bu...
Why doesn't Objective-C support private methods?
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More python being "obj-c-ic" :). Guido was quite proactive in maintaining Python on NeXT systems, including creating the 1st version of Py...
How to return a string value from a Bash function
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This is just plain wrong. You can return arbitrary data inside a return variable. Which clearly is a better way.
– Ev...
The cause of “bad magic number” error when loading a workspace and how to avoid it?
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I got that error when I accidentally used load() instead of source() or readRDS().
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What is the difference between Serializable and Externalizable in Java?
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11 Answers
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Active
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Is there a vr (vertical rule) in html?
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Jerska
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answered Apr 14 '10 at 22:43
mattmatt
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How do you delete a column by name in data.table?
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In data.table 1.11.8, if you want to do it by column name, you can do directly rm.col = c("a","b") and dt[, (rm.col):=NULL]
– Duccio A
Dec 10 '18 at 11:08
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Css height in percent not working [duplicate]
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edited Jan 22 '16 at 11:08
PiTheNumber
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