My first Pcb, Youre thoughts? - Page 1
Forum section: electronics / beginners

author: allen2688
author_rank: Newbie
timestamp: October 09, 2013, 12:16:22 am
content: Hey so I have been thinking about making this pcb for quite a while now just haven't gotten the time to do it, and I just wanted you're thoughts on this design and if I created this simple circuit correctly.I am planning on making this simple little circuit and selling them as button box accessories for the sim racing Community. It is basically is just a Flashing indicator light that can be wired into a switch on a button box to indicate when that switch is activated (for instance a pit road speed limiter).https://upverter.com/Allen2688/cd78efb3dff76ba7/Button-box-Indicator/

author: Paul Price
author_rank: Super Contributor
timestamp: October 09, 2013, 12:46:09 am
content: Does it work?If it does, then its ok with me, otherwise it is not. Maybe a better way to do whatcha wanna do, who am I to judge?After all, some of your circuit component values are just a little vague.

author: wraper
author_rank: Unknown
timestamp: October 09, 2013, 02:40:26 am
content: This circuit looks like 70's, I would rather use some logic IC.

author: c4757p
author_rank: Super Contributor
timestamp: October 09, 2013, 02:55:11 am
content: Try to fit it onto a single layer! It's good practice for more complex boards, and I know for a fact you can do that circuit on a single layer because I've done it before.I don't see anythingwrongwith that layout, but it doesn't look very tidy in my opinion.Quote from: wraper on October 09, 2013, 02:40:26 amSo what? It blinks LEDs. Why make it more complicated just because it's "old"?

author: wraper
author_rank: Unknown
timestamp: October 09, 2013, 12:56:36 pm
content: Quote from: c4757p on October 09, 2013, 02:55:11 amThere would be less parts actually. Simpler schematic. One 74HC or CD4000 series logic, 3 resistors and one cap + leds.

author: Dave
author_rank: Super Contributor
timestamp: October 09, 2013, 01:05:25 pm
content: Quote from: wraper on October 09, 2013, 12:56:36 pmSo, you are saying it would be better to start with integrated circuits instead of understanding the basics first?That's exactly how people get caught in the arduino trap and never grow out of it!"Oh! I need a simple switch for 3 LEDs. Guess I'll just have to buy another arduino board then."

author: aurelleostean
author_rank: Contributor
timestamp: October 09, 2013, 01:45:14 pm
content: Good thinking in making the simple pcb wich i think works but you can use simulation software like Proteus Labcenter or similar but freeware. In time you will perform better at reducing the size of the pcb`s and the quality of your work as well as the durability of the build. This simple bistable can be miniaturized with smd`s. Good luck!

author: odv000
author_rank: Newbie
timestamp: October 09, 2013, 08:05:49 pm
content: Quote from: wraper on October 09, 2013, 02:40:26 amyeah!let's use microcontroller for it!or even better - let's get some SOC put LINUX in it and make it blink an LED!

author: ElectricMan
author_rank: Newbie
timestamp: October 09, 2013, 08:48:40 pm
content: Where is the PCB design? On the link I only saw a schematic...

author: c4757p
author_rank: Super Contributor
timestamp: October 09, 2013, 09:23:58 pm
content: At the left of the schematic there are two buttons to select the view.

author: nemo000111
author_rank: Contributor
timestamp: October 09, 2013, 09:50:20 pm
content: Overall not bad for a first go around. Try to avoid right angles and if possible put a date on the board using some unconnected copper traces. You also should be able to make it single sided. Where did the current limiting resistors for the led's go on pcb layout? You've also got a junction just below the component on the far right. Why not use the pad as the function point? It's all about making mistakes and discovering new things.

author: wraper
author_rank: Unknown
timestamp: October 10, 2013, 04:39:52 am
content: I don't think than doing it with logic IC with inverters is less basics than making multivibrator with transistors, just different basics. How this can be Arduino like???