Making an Oscillator Bomb with a 555 for Left4Dead

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    Bomb Oscillator
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Discussion Overview

The discussion revolves around creating an oscillator circuit using a 555 timer to simulate a bomb countdown feature from the game "Left4Dead." Participants explore how to achieve a frequency increase from 1Hz to 10Hz over a 10-second period, focusing on the technical aspects of the 555 timer's operation, including duty cycle considerations.

Discussion Character

  • Technical explanation
  • Exploratory
  • Homework-related

Main Points Raised

  • One participant describes the desired functionality of the oscillator in the game, specifying the frequency increase over time.
  • Another participant inquires about maintaining a 50% duty cycle while achieving the desired frequency modulation.
  • A participant expresses confusion regarding the concept of duty cycle and its relation to frequency changes.
  • One participant clarifies that the duty cycle refers to the proportion of time the LED is lit during each cycle.
  • Another participant mentions the popularity of the 555 chip and provides links to resources for calculating component values related to frequency and duty cycle.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the specifics of implementing the oscillator, as there are varying levels of understanding regarding duty cycle and its implications for the circuit design.

Contextual Notes

The discussion includes some missing assumptions about the circuit design and the specific configurations of the 555 timer that may affect the outcome. There is also a lack of clarity on how to effectively implement the frequency increase within the given time frame.

Tesladude
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Hi i use the 555 a lot and I am also a gamer.
in the game "left4dead" they have a bomb that has an occilator to tell you when the bomb is going to go off bu blinking slowly at first, like 1hz then slowely increasing frequency up to maybe 10hz over somthing like a 10 second span. Does anyone know how to do this with a 555?

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Tesladude said:
Hi i use the 555 a lot and I am also a gamer.
in the game "left4dead" they have a bomb that has an occilator to tell you when the bomb is going to go off bu blinking slowly at first, like 1hz then slowely increasing frequency up to maybe 10hz over somthing like a 10 second span. Does anyone know how to do this with a 555?
I don't have data to expend on a YouTube video ATM, but do you want the duty cycle fixed at about 50%, even at 1Hz?
 
wait, ok i completely forgot something.
I was messing around with the 555 trying to acomplish what I want but I have little or no Idea what the duty cycle is. I FEEL SO STUPID! lol is that saying the frequency will increase by 50% every 1 second or somthing?
 
Duty cycle is the proportion of each cycle that the LED is lit. 50% duty cycle means it spends equal time ON as OFF.
 
ok thanks guys
 

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