9 Pin Cable tester

Thanks to PCBWay for sponsoring this video. You can get these PCBs at www.pcbway.com/project/sharep...
This project requires
Arduino Nano - amzn.to/3ysygOz
18 @ 5mm LEDs - amzn.to/3WQ7TvY
9 @ 330 ohm resistors - amzn.to/4boEXQi
4 DE-9 connectors - amzn.to/3QSAUmT
Optional parts:
Female Headers for Nano & screen amzn.to/3UMBFPF
7 Segment Display - amzn.to/4c25rqP
Network cable tester - amzn.to/3K4ua1H
Button between A6 and Ground for changing modes - amzn.to/4az7dys
Follow up with new modes - • 9 Pin Cable Tester - U...
If you're interested in getting pcbs, using this link www.pcbway.com/setinvite.aspx... for my friends over at PCBWay.com is a huge help to the channel.

[@SimpleElectronics]

Love the dramatic lighting - I know the period for recommendations has closed but I would love 2 more buttons - one to pause/play the animation and another to step through it so you can make a little chart!

[@AnotherMaker]

I can add that to the software and add it to the gpio

[@tripplegracing8276]

KiCad rocks, this project actually inspires as well to create as similar tester...... got the creative juices flowing.

[@pileofstuff]

Guilty as charged. I've made a ton of serial cables with only 3 pins connected...

[@daviddevillers6790]

Null modem! That's rich. Nice project!

[@alexstone691]

If i did this i would make it microcontroller-less with a binary counters

[@Chriva]

Gaaaah! Align the LEDs. Align the LEDs! 😂

[@AnotherMaker]

This was my prototype. I was not actually expecting it to work

[@justanothercomment416]

I remember those days. Countless cables and adapters exchanged because of this very problem.

[@AnotherMaker]

Since I made this I already fixed one project where the cable was crossed and I didn't know it

[@Batmule]

No diagram? I was wondering how you did it.

[@AnotherMaker]

I'm going to do a follow-up. I always forget about it but the Arduino sketches basically have all the diagram information in them that you need. I'm basically just powering up eight pins and checking to see if the lights turn on. I'm going to add a few features this week and do it quick update and I'll explain a little bit more

[@Batmule]

@@AnotherMaker Ah! You have the SideA and SideB LEDs in series with the cable in between. This explains the only 9 resistors and the light pattern. Thanks! Looking forward to the next video in the series.