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| Micro Controllers Discuss all aspects of micro controllers - building them, coding them, etc. All controllers are welcome - PIC, BASIC, Z8 Encore!, etc. |
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Hi, I sure could use some help on this project, also would be willing to pay for high quality professional services. (must prove you are qualified) Here's the project: We have 50 - 20ma high output LED's that will be installed in the boat transom, approx. 2" spacing. Need to have these led's scroll, chase, dim. Power supply is 12v (not 24v) Where do I start? I'm not an electrical engineer, I am a test engineer stuck with this project for a show boat to be displayed at an annual convention. Thanks. Greg | |
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| | #2 |
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You can buy 50' LED rope light with 8 function controller for <$50, see ebay. May require dropping the 12V down to whatever the unit uses.
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| | #3 |
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No rope light stuff for this boat! These are high output stainless led designed for marine environment were using. Were looking for a high end custom install, not a store bought, off the shelf screw on or glue on. Thanks though.
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| | #4 |
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Well, if you want to make it yourself and have flexibility in the patterns and timing, you will likely want to use a microcontroller and drive the LEDs using multiplexing. For a standard multiplex, there will be 15 wires that you will have to route to the LEDs. If you would like to elaborate on what you require, including customisation features, I can design or at least help you design a unit. | |
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| | #5 |
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Ok....lets get started.
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| | #6 |
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Well, what do you require? * Individual control of brightness for each LED? * User programmable patterns? * Pattern-change triggered by external input? (or just internally timed?) | |
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| | #7 |
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User progamable...dimming all, screoll, sequence, etc. If the guys like the transom, then they want me to do the sides, which will be 125 LED's per side. | |
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| | #8 |
| How will you find someone to come install if you haven't specified a location!
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| | #9 |
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Deleted Deleted
__________________ I'm could be wrong many time's, at least I know what I'm doing. http://shop.ebay.ca/merchant/csaba911 Last edited by csaba911; 10th October 2009 at 02:29 AM. | |
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| | #10 |
| Well he said he was a test engineer and his people had given him this project. It would be logical to assume that he can do the electrical install itself but wants someone else to do the microcontroller module design.
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| | #11 | |
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Since it's going on a boat, they don't want do-it-yourslef cricuit boats. So, what's next? | ||
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| | #12 |
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hi heygreg, I would recommend something simple and hefty on the display side with full brightness and PWM brightness control. You should get an idea from the crude drawing below for the 15-pin LED wiring harness. You might consider four push buttons in a "diamond" pattern and a 2x16 LCD display for the user interface or perhaps something as simple as lighted push buttons switches. Power budget for the display below would be a maximum of 960-ma. Let me know if you need help on this project. Kind regards, Mike McLaren, K8LH (Westland, MI, USA) ![]() Last edited by Mike, K8LH; 10th October 2009 at 12:52 PM. | |
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| | #14 | |
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![]() ![]() All this work looks professional Last edited by be80be; 11th October 2009 at 12:35 PM. | ||
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| | #15 |
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Thanks guys. If the OP comes back, let's try to convince him to go with 48 LEDs instead of 50 (for reasons that are more obvious to us hardware/software types, LOL)... Say, I wonder if an "SOS" effect would be nice to have (and hopefully never used)... Kind regards, Mike Last edited by Mike, K8LH; 11th October 2009 at 01:05 PM. | |
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| Tags |
| boat, chasing, controller, dimming, large, led, led controller, scale, scrolling |
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| Display Modes | |
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