Creating a NAND Gates Circuit to Light an LED

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Discussion Overview

The discussion revolves around designing a logic circuit using NAND gates to light an LED based on the status of car doors and the driver's seating position. The focus is on creating a simple circuit diagram that incorporates the conditions of the left and right doors being open and the driver being seated.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant asks for guidance on drawing a logic circuit diagram that lights an LED based on the status of car doors and the driver's seating position, specifically using only NAND gates.
  • Another participant suggests starting with any logic gates to create the circuit and then converting it to NAND gates.
  • A participant references a Wikipedia article about constructing other logic gates from NAND gates as a resource.
  • There is a clarification regarding the inputs for the circuit, with one participant confirming that the driver's condition is indeed considered a third input along with the left and right doors.

Areas of Agreement / Disagreement

Participants generally agree on the need to incorporate all three inputs (left door, right door, and driver seated) into the circuit design. However, the discussion remains open regarding the specific implementation and simplification of the circuit using only NAND gates.

Contextual Notes

There are no explicit limitations or unresolved mathematical steps mentioned, but the discussion implies a need for clarity on how to effectively use NAND gates to achieve the desired circuit functionality.

Who May Find This Useful

Individuals interested in digital logic design, electronics, or those working on related homework assignments may find this discussion beneficial.

jumphigh
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Hey all,

How can I draw a diagram of some logic circuit that will light an LED if either or both the left
and right door of a car are open and if the driver is seated ?

Assume that the doors and seat are equipped with switches, and that only NAND gates are available. ( My circuit should also be as simple as possible).

Im kinda lost in what I have to do, any words of wisdom?

Thanks
 
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Try drawing it first with whatever gates you want. You should be able to convert everything to NAND gates after.
 
vk6kro said:
Yes, you can do that.

Have a look at this article in Wikipedia about making other gates from NAND gates.

http://en.wikipedia.org/wiki/NAND_logic

Thanks all,

Is the driver`s condition (seated or unseated ) considered as the third input?
I mean, the first input is right door, the second input is the left door, and the third input is the driver?
 
jumphigh said:
Thanks all,

Is the driver`s condition (seated or unseated ) considered as the third input?
I mean, the first input is right door, the second input is the left door, and the third input is the driver?

Yes, all 3 inputs need to go into your circuit.
 

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