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Color code for lines in electronic circuits?  

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WolfgangW
(@wolfgangw)
Trusted Member
Joined: 1 month ago
Posts: 62
2020-08-17 9:20 am  
Hi Guys,
 
the question may seem strange at first, but for a few weeks now, almost since I got into the Arduino I've been searching on Internet for a standardized color code for lines in electronic circuits, but without success.
Why am I looking for something like that? Well, probably because I'm German and I can't jump out of my skin. 
If you are new and watch a lot of videos on Youtube you almost get eye cancer because the producer took what was there. 
Bill usually uses black for GND and red for 3.3V / 5V. Then it becomes variable. Maybe there is no such thing. Then I would have to create my own "norm". But I am open to suggestions. What do you people do in this case? 
 
friendly greetings to everyone and thank you in advance for your effort 
Wolfgang
 

If I am not here, then I am most probably somewhere else


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Robo Pi
(@robo-pi)
Robotics Engineer Moderator
Joined: 1 year ago
Posts: 1788
2020-08-17 2:12 pm  
Posted by: @wolfgangw

Maybe there is no such thing. Then I would have to create my own "norm"

Yes, that's the current state of affairs.   In fact commercially different companies and industries often have their own color code systems.   I used to do wiring for the USA military and they used green for ground.  Black is actually a live hot wire.

But as a hobbyist I tend to use black for ground too.  Although black is also hot on the AC house current in the USA.   Having worked on military projects I also tend to continue to use green for grounds as well.

The colors of all other signals is entirely open to your choice. 

Having said the above, there are standards that can be found.   Various auto manufactures often have color codes they use on their cars.  You could adopt one of those.  Although different auto manufactures tend to use different color codes. 

Here's a web page that can give you a lot of ideas for various color-coding conventions:

Electrical Color Code

If you are building a project with a lot of wiring you would do well to create your own color code system in advance.  That will make troubleshooting and assembly much easier as you move forward with the project. 

DroneBot Workshop Robotics Engineer
James


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WolfgangW
(@wolfgangw)
Trusted Member
Joined: 1 month ago
Posts: 62
2020-08-17 3:41 pm  

@robo-pi

Thanks James for that.
I already thought so. And I will follow to your suggetion. 

If I am not here, then I am most probably somewhere else


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