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| General Electronics Chat This forum is for general chat about electronics, eg: Dont know what a part does? Dont know how to read a circuit? Want to get an opinion? |
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| | #16 |
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?? The dot shows that wires are JOINED. Otherwise it might just be wires crossing over each other. | |
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| | #17 |
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The black dots are soldered connections in the circuit. Where a wire passes another wire without a black dot then the wires are not connected in the circuit. You must connect the polarity of the LEDs correctly. Here is an example of how wrong your connections are. Here is your results and the correct results: Constant Pin 0 - 5V+ GND to Pin1 - LED 3 No, LED 0. GND to Pin2 - LED 9 No, LED 6. GND to Pin3 - LED 11 No, LED 8. Constant Pin 0 - GND 5V+ to Pin1 - LED 0 No, LED 1. 5V+ to Pin2 - LED 8,0,1,5 (5 really dimm) No, LED7. 5V+ to Pin3 - LED 10 No, LED9.
__________________ Uncle $crooge | |
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| | #18 |
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Okay I cut new wires and made it look nice and neat. So at least you can see what I have and make sense out of it. I burned out the last 3 led's since the beginning of this whole process. So I'm using 3 led's I pulled out of an old pc case for now. ![]() Constant Pin 0 - 5V+ GND to Pin1 - LED 0/4/7 GND to Pin2 - LED 8 GND to Pin3 - LED 0/6 Constant Pin 0 - GND 5V+ to Pin1 - LED 3 5V+ to Pin2 - LED 3/4 5V+ to Pin3 - LED 3/5/7 Constant Pin 1 - 5V+ GND to Pin0 - LED 3 GND to Pin2 - LED 1 GND to Pin3 - LED 6 Constant Pin 1 - GND 5V+ to Pin0 - LED 0/4/8 5V+ to Pin2 - LED 4 5V+ to Pin3 - LED 4/5/7 Constant Pin 2 - 5V+ GND to Pin0 - LED 3/4 GND to Pin1 - LED 4 GND to Pin3 - LED 4/6/9/10 Constant Pin 2 - GND 5V+ to Pin0 - LED 8 5V+ to Pin1 - LED 1 5V+ to Pin3 - LED 5 Constant Pin 3 - 5V+ GND to Pin0 - LED 3/5/7 GND to Pin1 - LED 4/5/7 GND to Pin2 - LED 5 Constant Pin 3 - GND 5V+ to Pin0 - LED 0/6 5V+ to Pin1 - LED 6 5V+ to Pin2 - LED 4/6 Thanks, Kenny Last edited by kenny782; 11th October 2009 at 08:44 AM. | |
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| | #19 |
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You still have many LEDs lighting wrong. You didn't label your LEDs on your breadboard and didn't show their polarity so mayby you made more mistakes.
__________________ Uncle $crooge | |
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| | #20 |
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do you see anything wrong with the layout of wiring itself though? -Kenny | |
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| | #21 |
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If you label your LEDs and show their polarity then it will be easy to see what is wrong with the wiring.
__________________ Uncle $crooge | |
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| | #22 |
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I've been checking polarity through this entire ordeal carefully. I think it's this f'in breadboard. I took the three led's I pulled from the breadboard. I soldered jumper wires to the stranded wire coming out of the 3 led's I got from my PC. I had the wires directly going into the breadboard but securely. It still doesn't work right but the results have completely changed. I think my wiring has been fine since the first two posts you guys answered, but this stupid bored must have been shorting all over the place. _________________ I was using a set of jumper wires for everything the last three days until yesterday. I made up my own which you see in the pic. Of course everything would've went into different holes, different results. So wired are ruled out. Now I moved everything over one row(same wires), different results again. I picked up this large board so I'd have more room for this project Oh I'd like to some taiwanese and smack him in the head right now... -Kenny | |
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| | #23 |
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Here's a copy anyway, you might find something wrong. If it's the board at least I'll know how to wire it on the replacement. ![]() Thanks again, Kenny | |
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| | #24 |
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I never use a breadboard so I am guessing about how yours connects. You missed one wire and have the polarity of every LED backwards.
__________________ Uncle $crooge | |
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| | #25 |
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each row of 5 across is connected to a single conductor. so any wires in that row are connected. I added the missing wire, and checked the polarity and everything is reversed now as you listed. Maybe the three temporary led's are throwing off the resistance too? They're only 3mm, versus 10mm. And they're connected to the 30" of wire they were attached to when I pulled them out of the computer. Kenny | |
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| | #26 |
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Right now 5v+ to pin 0 give me: gnd pin 1 - led 3 gnd pin 2 - led 9 gnd pin 3 - led 10 | |
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| | #27 |
| You don't know what you are doing and I don't know what you are doing.
__________________ Uncle $crooge | |
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| | #28 |
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Sorry, I'll just play with it myself for a few days then and see if I get anywhere. But I appreciate your help with this anyway, I know you've spent quite a bit of time on these posts. Thanks again, -Kenny Last edited by kenny782; 12th October 2009 at 12:39 AM. | |
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| | #29 |
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Well just one last comment, I threw some 150ohm resistors on and it's 90% functional. The combination of pin3+ and pin4- brings up multiple LED's, otherwise is fine. So I built a 6 LED model to make troubleshooting easier, same 150 ohm resistors. It only took 10 minutes anyway. Combination of pin2- and pin3+ produces multiple led's, otherwise works fine. It's the last two pins in both configurations. ![]() ![]() Since that's the furthest LED maybe I need to swap out the resisters again? Last edited by kenny782; 12th October 2009 at 06:54 AM. | |
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| | #30 | |
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| led, mystery, series |
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