Hey all you lovely folks,
I’ve got a two led implants, love them. I want to make something similar to these led nail stickers I see sold about, even on dangerous things:
My wife is awesome with almost any medium artistically, and she’s taken up nail art. I have a few smt leds, and want to make some of these style leds for her to encapsulate in the acrylic nail gel.
I’ve run through a number of resonance calculators, i kind of understand: have to match resonance of coil (+ capacitor option) to the frequency of the signal; in our case i 13.56 mghz would probably be best.
I have yet to successfully wrap an “antenna” from magnet wire, on purpose. Once, years ago, i randomly wrapped in a rectangular shape, some 30ish gauge magnet wire, no capacitor, and it worked!
But since i’ve started trying to do it with “math”, i can’t; i should note, i’m a total amateur and haven’t used heavy math since highschool/college, and these appear to be fickle.
Anyone know how many loops those fingernail stickers have? Or an idea of the right capacitors/30 gauge wire combination would work? Or without the cap is fine too.
Or help me fill in a calculator? I have handy (not smt) caps in 1 and 0.1 uf caps, and 100 or 10000Pf caps.
I think aiming for 10-20mm across square/rectangle/circle flat antenna, using 30 gauge (too small for my cheap calipers. wrapped 10 loops, tried to be tight, and got 1 cm. so i think 0.1 mm diameter best i can see).
I’ve seen some “wireless power” circuits running at waaay higher frequencies, and will give those a shot for a bigger set of leds soldered onto jelly bean pcb mount inductors, but wouldn’t want to risk that kind of power with a) my implants b)fingernails. What i’ve seen in a few of those is that they may use different number/size of loops on the receiver than the transmitter. Can i guess, that with high enough frequency/power, you can get more of a range of coupling?
Would it be easier for my purpose, to make a higher frequency transmitter (i’m thinking 3 point resonator, found one that says it’s around 27mghz) and try to use that for the nail? I’d probably wear some kind of tinfoil glove to protect my implants
Thanks a tonne!