Really quite simple. I dont have teh equipment to etch the pcb (using Zaps guides) so I'm getting custompcb.com to do it for me, wont be more than $20+ shipping for 2boards (I got another case I can use this with). 100000mcds forward from the rear to the front of the case, 20000 back wards on the edges and 10000 to the left/right of the case. Hoping to embed this into a 1cm sheet of plexi. Did the board in Eagle this time round. Some people have advised me to use 50ohm resistors per led as the leds are as follows: fv= 2.5v, current: 30mA so I'll use 75ohm resistors. Code: Order Code PF07H: High Efficiency Red Toshiba description: TLSH180P Forward voltage max. at IF=20mA: 2.5V Forward current max.: 50mA Reverse voltage max.: 4V Wavelength @ peak: 623nm Power dissipation PT: 125mW Light output min.@ 20mA: 2720mcd Light output typ.@ 20mA: 10000mcd Let me know if there are any errors! Thanks, Mike
eh... WOW! you know.. 140000mcd is BRIGHT! i have ONE led on 8000mcd connected to the USB port (made last night... it was dark...) I lighted uoy the window.. and i could calerarly see the light on the lawn.. (i'm at 2nd floor)
Yeah... That's bright... Well I'm sure there isn't a law about creating devices brighter than the sun, but I'm sure there will be...
CustomPCB are very good, Gary Cho is the owner and is very quick, courtious and basically does a very good job!
<<<<<<<<<<<<<[Part2]>>>>>>>>>>>>>> (thanks to Hazer, Aegis`) Vcc:5V, Vled: 2.1V Current: Iled = (5-2.1)/150 = 0.019A Ir=Iled=0.019A, therefore total current= 0.019*14 = 0.266mA Power: Power per led (Pled) = 2.1*0.019 = 0.0399W Power per resistor (Pr) = 2.9*0.019 = 0.0551W ***check: Pt=Pr+Pled=Vcc*I=5*0.019=0.095W Total Power: IV = (0.019*5)*14 = 1.33W
