... P1.0P1.1 P1.2 +5V 23 MCS-51 VCC RST + EAEA P1.0P1.1 P1.2 P1.0P1.1 P1.2 10kΩ P2.0 +5V 10kΩ P2.0 +5V SW 10μF 45 6 7 8 9 P1.3 P1.4 P1.5 P1.6 P1.7 按鍵開關S ...
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