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1Ƶ:12MHZ
2ʹ˵:IICͨѶAD/DAת->PCF8591ADCת,̲
			ͨ3(λѹ)ADCתʵͨλѹ֮õ
			ĵѹֵ,ͨת"ѹɼ"λ,ԵڷѹĴС,˳ʱ
			תѹС,ʱתѹ,ADCʵʲõĵѹֵʾ
			,ʽΪX.XX,λС,λV