Electronics > Beginners
Time to get my feet wet Making an RGB led Heart necklace (with heart shaped pcb)
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Eka:
Places like AdaFruit have all the schematics for their board products published online. Take a look at the Li-Ion battery chargers made to charge from USB and power a device from the LI-Ion battery. Look at the manufacture's data sheets and application notes for the chips used. Copy the circuit into your device if you like what it can do for you, and can find the parts in stock. You now have power which I usually just punt and buy a DC-DC module. They also have plenty of projects showing how to use LEDs. Scavenge the circuits and code that do what you want to do. I learned a lot about how to design electronic circuits from manufacturer's data sheets, and application notes. Nothing like seeing a working example, and modifying from there to get what is really needed for the project.
Astaldoath:
Im still here, having some bad luck with my health, may be out of the game few a week or 2 at the most, hopefully less, had 2 rotten teeth pulled the last 2 days after i did, been feeling fluish, dizy ect... starting to feel better, just deathly afraid of dry sockets. Will keep pushin to making the necklace I wanna make a reality.







If you wish and are christian or even if you arent christian (please pray for me, for my health and so I dont get a dry socket guys, i know ya hardly know me. Thank you :(  )
Astaldoath:
Well i guess im not doing exactly what i wanted but i am going to bet getting my feet wet, trying to fix a monitor and tv with both the same symptoms, power light on, no screen, except my monitor the power light died too (maybe i changed outlets before it died). Will be back to this eventually, good news is I think i can get my soldering iron soon, im gettin the ts100 that comes with the 19v psu that almost runs at 2.7 amps, 24v/2.7 amps is shown what it uses when on 24vs on a good bench supply.

If fixing the caps on the tv and monitor dont work ill probably be making a thread somewhere hehehe. I need a free tv :)
james_s:
I've fixed probably 20 LCD TVs that had nothing more than bad capacitors. That's not always the problem but it's a good place to start, usually they're so bad that the tops are bulging and sometimes electrolyte has leaked out.
Eka:
TV and computer addictions must be strong. It's surprising how many couldn't wait for a day diagnostic, then a day or two for parts orders. I'm one to two days ground from DigiKey. So all my TVs and computer monitors but one are freebies from those who couldn't wait. It wasn't like I was charging my friends bench time, just parts. By the start up sluggishness on this one, I expect its backlight to go soon.
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