General Countdown Gauntlet

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cyberpred

Sr Member
OK

I have looked all over the net and have not see a count down gauntlet that looks like the first movie. Where there is a display of sequencing lights in each window that turns off in succession.

So here is what I made in the 80s and will give you an idea how to do it.

Will take some work on your part as I am not posting a schematic or wiring diagram.

I used a one shot monostable multivibrator using a 555 for the main power to run through. 5volts is a good voltage considering that the circuit is cmos. So when the one shot is activated it sends a 5volt pulse to the rest of the circuit. You can adjust the time of the pulse by altering the rc time. I recommend using a pot for the resistor.

You will have to build a one shot for each of the led sequencing displays. This will control the on off for the displays. You can then adjust the 5 volts out so each one turns off in succession like it is supposed to.

The sequencing circuit is nothing more than using a 4011 wired up as an astable multivibrator or clock.

The output of this clock goes into the input of a 4017. T 0-9 outputs of the 4017 then go into a ca3082 transistor array chip. This chip will jack the current up so the leds are bright.

You will have to build a circuit like this for every window on the gauntlet.

This circuit works great. Get some kaynar wire or wire wrapping wire to do the pinpoint wiring.

Cary
 

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Elkman

New Member
I don't think I'm going to try it. Your explanation looks a little bit intimidating. While I used to play with electronics as a kid, I never learned how to work with CMOS logic. I did a little bit of a Google search and I found a tutorial explaining how to use a 4011 as an astable multivibrator, and another tutorial on using the 4017 as a decade counter, but assembling everything together and creating the digit output just seems like it would be a lot of extra work.

I think you've built something unique there. You should post some pictures of the timer that you've built, and maybe even a video.
 

cyberpred

Sr Member
Wow

I am really surprised how many people are intimidated. Looks like I will have to build another. I gave an online tutorial a few years back.

Anyone interested?

Cary ;)
 

cyberpred

Sr Member
Here is a one shot. The reason it is called a one shot is because when a momentary switch is pressed the 555 outputs a pulse ore one shot of voltage.

tn_555mono.jpg.png

The output at pin 3 will run for 6 seconds with this configuration. The output will be around 5 volts. Use this 5 volts as the VCC for the following circuit.

tn_CIRCUIT.jpg.png

This will turn on the sequencing circuit for 6 seconds.

You will build this configuration 5 times for each sequencing pattern.

My recomendation is get a proto board and components and play with it.


Oh and this may help. These are the numerals in the Yautja language.

tn_SEQUEN~1.jpg.png


Have Fun!!!!!!




Cary ;)

tn_555mono.jpg.png


tn_CIRCUIT.jpg.png


tn_SEQUEN~1.jpg.png
 

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