羽球訓練器

By s09008 in Circuits Arduino

158

設下範圍並利用超音波感測器偵測，範圍內亮綠燈，範圍外亮紅燈。藉此訓練擊球的精準度，讓球的落點更準確。

Step 1:

零件：超音波感測器、LED燈

https://youtu.be/_JRuqXVW6Fc

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