GROUND FLOOR

ATHARVA
ATHARVA YADAV
• Created on Nov 6, 2022 • 0 • 0 • 3
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GROUND FLOOR
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Integrated Circuits Used

74LS21 74LS04 74LS11

Description

INPUTS 0=A=GND FLR 1=B=1ST FLR 2=C=2ND FLR 3=D=3RD FLR OUTPUTS 0=UP 1=DOWN 3=DOOR OPEN

Procedure

  1. Connect VCC Port to Pin-20 (VCC) of ICBase-1 (74LS21).
  2. Connect GND Port to Pin-7 (Ground) of ICBase-1 (74LS21).
  3. Connect GND Port to Pin-7 (Ground) of ICBase-2 (74LS04).
  4. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS04).
  5. Connect Pin-2 (Output) of ICBase-2 (74LS04) to Pin-1 (Input) of ICBase-1 (74LS21).
  6. Connect Pin-4 (Output) of ICBase-2 (74LS04) to Pin-2 (Input) of ICBase-1 (74LS21).
  7. Connect Pin-6 (Output) of ICBase-2 (74LS04) to Pin-4 (Input) of ICBase-1 (74LS21).
  8. Connect Pin-5 (Input) of ICBase-1 (74LS21) to Pin-14 (Output) of ICBase-2 (74LS04).
  9. Connect Input-0 to Pin-1 (Input) of ICBase-2 (74LS04).
  10. Connect Input-1 to Pin-3 (Input) of ICBase-2 (74LS04).
  11. Connect Input-2 to Pin-5 (Input) of ICBase-2 (74LS04).
  12. Connect Input-3 to Pin-15 (Input) of ICBase-2 (74LS04).
  13. Connect Output-2 to Pin-6 (Output) of ICBase-1 (74LS21).
  14. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS11).
  15. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS11).
  16. Connect Input-3 to Pin-19 (Input) of ICBase-3 (74LS11).
  17. Connect Input-2 to Pin-5 (Input) of ICBase-3 (74LS11).
  18. Connect Pin-2 (Output) of ICBase-2 (74LS04) to Pin-1 (Input) of ICBase-3 (74LS11).
  19. Connect Pin-4 (Output) of ICBase-2 (74LS04) to Pin-2 (Input) of ICBase-3 (74LS11).
  20. Connect Pin-2 (Output) of ICBase-2 (74LS04) to Pin-3 (Input) of ICBase-3 (74LS11).
  21. Connect Pin-4 (Output) of ICBase-2 (74LS04) to Pin-4 (Input) of ICBase-3 (74LS11).
  22. Add IC 74LS21 into ICBase-1 (74LS21).
  23. Add IC 74LS04 into ICBase-2 (74LS04).
  24. Add IC 74LS11 into ICBase-3 (74LS11).
  25. Connect Output-1 to Pin-6 (Output) of ICBase-3 (74LS11).
  26. Connect Output-1 to Pin-18 (Output) of ICBase-3 (74LS11).
  27. Connect Pin-14 (Output) of ICBase-3 (74LS11) to Output-0.