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Post by geebo on Mar 19, 2016 22:00:45 GMT -5
I found some Blue LEDs today. I'm gonna have LEDs on all the triggers in and out! They're rated at 20ma with a Vf of 4V Vs supply Vf forward voltage of LED Im max LED current Rl current limiting resistor Rl = (Vs-Vf) / Im = (12-4) / 0.020 = 400 ohms I going to half the current to 10ma or less as I don't want them too bright. I'm guessing a 1K will be perfect. That's gonna be pretty slick. Can't wait to see it. |
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Post by geebo on Mar 20, 2016 16:18:47 GMT -5
Got mine all finished and it's in the system working perfectly. I left one relay without the 12v trigger signal to be used as a simple contact shorting trigger for the Crown XLS1502. Works like a champ.
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Post by Chuck Elliot on Apr 6, 2016 22:57:38 GMT -5
Well Geebo got his working before me. He has a special need so I wrote a version of the software that takes 2 trigger ins that each controls 2 trigger outs. I've been wicked busy with work so I just haven't had time to finish. I'm taking my time making this look like a pro unit. I should finish this weekend and will post a set of pictures of the completed unit. I needed a logo for the front panel. My first swag:  |
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Post by JKCashin on Apr 6, 2016 23:09:48 GMT -5
So, I am doing something similar, inspired by this project! More to follow ( in a separate thread, lest I thread jack) Thanks for the inspiration! |
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Post by geebo on Apr 7, 2016 6:52:42 GMT -5
Well Geebo got his working before me. He has a special need so I wrote a version of the software that takes 2 trigger ins that each controls 2 trigger outs. I've been wicked busy with work so I just haven't had time to finish. I'm taking my time making this look like a pro unit. I should finish this weekend and will post a set of pictures of the completed unit. I needed a logo for the front panel. My first swag: Very much looking forward to seeing yours completed, Chuck. Cool logo, too. Mine is in an old plastic VHS tape case tucked away deep within my rack and out of sight. But working marvelously. Thank you for that special code. A programmer I am not and I would have ended up building two of them. |
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Post by JKCashin on Apr 7, 2016 21:32:09 GMT -5
Now that's a great idea! The logo appliqué that is. How you plan to print the logo?
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Post by Chuck Elliot on Apr 7, 2016 22:00:22 GMT -5
Now that's a great idea! The logo appliqué that is. How you plan to print the logo? - Logo is in Photoshop.
- Convert black to transparent.
- Print on 4x3 clear label.
- Trim as much of the transparent as possible with xacto blade.
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Post by JKCashin on Apr 7, 2016 22:15:12 GMT -5
Pretty simple then! Cool!
Thanks
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Post by JKCashin on Apr 23, 2016 0:26:31 GMT -5
How's this one coming along?
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Post by Chuck Elliot on Apr 24, 2016 15:01:20 GMT -5
Here are some final pictures. I will do a final write-up with code later tonight or tomorrow. Inside:  Front:  Rear:  |
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Post by Chuck Elliot on Apr 24, 2016 23:38:42 GMT -5
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Post by JKCashin on Apr 24, 2016 23:51:13 GMT -5
Sweet! Love this! Hope you don't mind I have stolen part of your idea!
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Post by Chuck Elliot on Apr 24, 2016 23:53:58 GMT -5
Sweet! Love this! Hope you don't mind I have stolen part of your idea! Of course NOT! Look forward to seeing your stuff..... |
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Post by Chuck Elliot on Apr 24, 2016 23:58:30 GMT -5
One thing I'd do on a resign is create a 555 circuit to control the duty cycle on the LEDs. I'm down to 2mA per LED and they are still too bright!!!
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Post by JKCashin on Apr 25, 2016 0:56:10 GMT -5
Oh. My design has 8 LEDs! 4 are tricolour and will be driven by a driver chip. Under 20 mA maybe for the LEDs from the unit, multi colour and I have two ways to control brightness including a sensor for room brightness.
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Post by geebo on Apr 25, 2016 7:09:47 GMT -5
Here are some final pictures. I will do a final write-up with code later tonight or tomorrow. Inside: Front: Rear: Wow, nicely done! Makes me want to re-do mine but since it's out of sight I'll leave well enough alone for awhile. I like the small PCB for the Zener and resistor for the input. Much neater than connecting them right at the inputs like I did. Looks great. |
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Post by Chuck Elliot on Apr 29, 2016 22:35:21 GMT -5
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hemster
Global Moderator 
Particle Manufacturer
...still listening... still watching
Posts: 51,951
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Post by hemster on Apr 29, 2016 22:36:34 GMT -5
Chuck, that link has expired. |
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Post by Chuck Elliot on Apr 29, 2016 23:22:09 GMT -5
Chuck, that link has expired. Link appears to be temporary. Goto www.miniinthebox.comSearch for 8 relay Ardunio use the one marked for Arduino |
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Post by Chuck Elliot on Apr 29, 2016 23:40:32 GMT -5
Here's a link to the finished unit in operation: YouTube Link |
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