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LED电压指示灯

@mo_sky
1 year ago
https://everycircuit.com/circuit/6558883715481600
通过调整电位器和LED的额定工作电压来判断电路电压的变化情况 电路元件: 纽扣电池:3V 红色LED:1.8V / 1mA 绿色LED:3V / 1mA 电位器:1KΩ 电阻:900Ω & 100Ω
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