54321Mach dong ho thoi gian thucled 1 led 2 led 3 led 4 led 5 V led V led V led V led V

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5 4 3 2 1 Mach dong ho thoi gian thuc led 1 led 2 led 3 led 4 led 5 V led V led V led V led V led led 6 D V led R10 R Q3 C1815 R9 R Q4 C1815 R8 R Q5 C1815 R7 R Q6 C1815 R6 R Q7 C1815 R5 R Q8 C1815 D U3 U4 U5 U6 U7 U8 8 8 8 8 8 Vcc Vcc Vcc Vcc Vcc 1 1 2 2 3 4 4 5 5 6 6 7 7 9 8 10 e d c dot b a f g 1 1 2 2 3 4 4 5 5 6 6 7 7 9 8 10 e d c dot b a f g 1 1 2 2 3 4 4 5 5 6 6...

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Nội dung Text: 54321Mach dong ho thoi gian thucled 1 led 2 led 3 led 4 led 5 V led V led V led V led V

5 4 3 2 1 Mach dong ho thoi gian thuc led 1 led 2 led 3 led 4 led 5 led 6 V led V led V led V led V led V led D D R10 R9 R8 R7 R6 R5 R R R R R R Q3 Q4 Q5 Q6 Q7 Q8 C1815 C1815 C1815 C1815 C1815 C1815 U3 U4 U5 U6 U7 U8 8 8 8 8 8 8 Vcc Vcc Vcc Vcc Vcc Vcc 11 11 11 11 11 11 e e e e e e 22 22 22 22 22 22 d d d d d d 34 34 34 34 34 34 c c c c c c 45 45 45 45 45 45 dot dot dot dot dot dot 56 56 56 56 56 56 b b b b b b 67 67 67 67 67 67 a a a a a a 79 79 79 79 79 79 f f f f f f 8 10 8 10 8 10 8 10 8 10 8 10 g g g g g g C C GIO 1 GIO 2 PHUT 1 PHUT 2 GIAY 1 GIAY 2 +5V +5V Design by sv: U1 40 Le Duc He R12 +5V R11 led 1 led 1 6 1 2 39 21 VCC P0.0/AD0 P2.0/A8 R Nguyen Van Hien led 2 led 2 5 3 38 22 P0.1/AD1 P2.1/A9 led 3 led 3 3 4 37 23 P0.2/AD2 P2.2/A10 V led Phung The Hung led 4 led 4 2 5 36 24 P0.3/AD3 P2.3/A11 led 5 led 5 1 6 35 25 P0.4/AD4 P2.4/A12 led 6 led 6 7 7 34 26 P0.5/AD5 P2.5/A13 C8 R13 led 7 led 7 8 +5V 8 33 27 P0.6/AD6 P2.6/A14 led 8 led 8 4 9 32 28 P0.7/AD7 P2.7/A15 U9 SCL C9 32768Khz Tro bang 10K 1 10 P1.0/T2 P3.0/RXD 22p 1K 1 5 2 11 X1 SDA P1.1/T2-EX P3.1/TXD D7 D8 D9 2 3 12 X2 P1.2 P3.2/INT0 D10 R2 R3 R4 0 7 4 13 SQW/OUT P1.3 P3.3/INT1 LED LED LED SCL SET 10K 10K 10K 6 5 14 SCL P1.4 P3.4/T0 LED UP 22p 6 15 P1.5 P3.5/T1 R14 DOWN DOWN SET 3 7 16 B B GND VBAT P1.6 P3.6/WR UP 8 8 17 VCC P1.7 P3.7/RD U10 X1 +5V 1K 19 30 XTAL1 ALE/PROG X2 DS1307 SW3 SW4 SW5 4 18 29 XTAL2 PSEN +5V 2 1 - + SET UP DOWN 31 GND EA/VPP reset 9 0 RST 0 20 Battery 3V AT89C52 0 0 +5V X2 X1 U2 +5V 12Mhz SW2 1 3 GND C3 IN OUT J1 Restat 10uF 2 reset C4 C8 + 1 C2 C1 22uF 104 LM7805C/TO 2 22p 22p A A 5V 10k 0 0 0 5 4 3 2 1