Simple 7 segments digit

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BlueDragonner
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Simple 7 segments digit

Post by BlueDragonner »

Well its a simple 7 segments digit and i m going to explain how i build it
Capture d’écran 2021-08-16 171508.png
Capture d’écran 2021-08-16 171508.png (1014.95 KiB) Viewed 1524 times
first of all we should talk about the lamp, each segment of lamp is associate to a activation signal here i chose 0 to 6 like you can see in the screenshot
tttt.png
tttt.png (529.57 KiB) Viewed 1524 times
You obviously repeat the process for each segement, i suggest alway activating the color condition.
Once we donne whit the digit we now need to attack the part where we activate the digit.
This part is not very complicate to understant, you need to translate the number into the segment they should activate some are easy to translate like 8 since it activate all the segement other are a bit tricky if its your first time doing something like that.
To begin this part i suggest that you build 10 comparator and use the following condition
Capture d’écran 2021-08-16 173128.png
Capture d’écran 2021-08-16 173128.png (35.28 KiB) Viewed 1524 times
you obviouly need to change the condition of activation whit the 10 number that you can create whit a 7 segements digit (0 to 9)
once finish connect all the exit of the comparator and connect it to the digit like the following screenshot, if you fell okay you can also connect all the back of the combinator whit a cable (you can use green or red the one you like, you need to becarfull to separate the exit and and entry of each combinator)
Capture d’écran 2021-08-16 173729.png
Capture d’écran 2021-08-16 173729.png (783.13 KiB) Viewed 1524 times
Now add a constant emitter and connect it to the back of the combinator , this constant emitter is going to allow us to chose which number we want to display (for testing purpose)
Capture d’écran 2021-08-16 174102.png
Capture d’écran 2021-08-16 174102.png (902.05 KiB) Viewed 1524 times
Now comme the transcription part, you need to place a constant emitter behind each comparator and set it so it woudl light the correct section of the digit, you can use the previous constant emitter for the previous step and making im output the exit signal of the number you want, in the following screenshot i transcipt the number 9 which is equal to activating the segment 0 ,1 , 2, 3, 5 and 6.
To connect the constant emitter to the comparator you should use the opposite cable of the one you aready use beforore to connect at the back of each comaprator, in my case i used red before so now i use green to connect the constant emitter to the comparator
Capture d’écran 2021-08-16 175318.png
Capture d’écran 2021-08-16 175318.png (1.44 MiB) Viewed 1524 times
Now repeat the process for the 9 other number
Capture d’écran 2021-08-16 175645.png
Capture d’écran 2021-08-16 175645.png (627.42 KiB) Viewed 1524 times
you should have a nice digit that can show 10 different number, do not essitate to check that each number is display correctly.
Now for the small bonus part we can add a constant emiter and a comparator to add some color to our digit.
Capture d’écran 2021-08-16 180118.png
Capture d’écran 2021-08-16 180118.png (1.25 MiB) Viewed 1524 times
You now have a nice 7 segements digit and you can dot what you want whit it, you can also remove the constant emiter that allow you to test your circuit and replace it whit something else


You can find the text you need to copy/paste to get the blueprint in the gdoc of the folling link:
https://docs.google.com/document/d/1FAV ... sp=sharing

hope you liked my explanation, i know that some display better than this one exits,if you have any question fell free to ask i will see if i can respond to it, and sorry for my bad english

wobbycarly
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Re: Simple 7 segments digit

Post by wobbycarly »

Nice one. There are a few other options over at this thread: viewtopic.php?f=193&t=19825

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