The most bare you can get.
http://shoryuken.com/f177/light-up-activation-button-mod-tutorial-149015/index16.html#post6926570
Wow, that was fast. Sadly, I’m still not positive I understand what’s going on there. Am I supposed to loop the VCC around like the ground loop to each button? Should I wire each one up separately? Argh.
You will Daisy-chain the VCC.
The psx pcb is 3.3v and the paewang is 5v (I think) What LED would i need for the FG?
I’ve got a question about FGWidget and Arc Eye. So I’ve got an FGWidget connected to a MC Cthulhu. Doing some measurements with the multimeter from the FG Widget. It looks like I’m getting around 4.8v output whenever a button is pressed. So if my LEDs require less, say 3.4-3.7v I’d have to use a resistor right? Even though the FGWidget already has those 150ohm resistor array’s right?
Using Led Calculator, Current limiting Resistor calculator for leds
And assuming for lower end, 3.4v. If the LEDs require more, they’ll just nor be as bright right?
And the 20mA that’s recommended for the Arc Eye’s
I come up requiring 70ohms of resistance, closest being 82
Sound right?
Good intent, but you’re not looking at the whole picture, because the resistor on the board limits the current.
What I’d do if I were you is hook up any single color arc eyes (i.e. ones you want to be blue, red, or green, but not more than one color) directly, without a resistor on the arc eye (so the one of the LED controller is the only resistor for that LED). Any ones you want to be dual colored, put the resistor that purplearms recommends on the arceye(s), and then hook up the color channels to the LED controller.
If the single color ones are too bright, put a resistor on the arc-eye for that color. If the dual channel ones are too faint, short the resistor for that _OUT channel on the LED controller. If the arceyes already have resistors on them, dont sweat it, just hook it up to the LED controller.
I guess what I’m saying is, you cannot hurt anything as long as either A) The resistor arrays are on the controller or B) the resistors are on the arceyes. The ONLY way you MIGHT hurt something is is there is no resistors present on either the led controller or the arceyes, and even then, I dont think you could hurt anything because the output pins of the microcontroller are limited to about 25mA.
Play around until you’re happy, and dont be afraid to try things out. I tried to make it as idiot proof as I could. Chance of permanently damaging the controller, leds, or consoles is minimal to nil.
You would want an LED with a forward voltage of less than 3.3v, so pretty much anything except white or blue with work on the PSX. Most white and blue leds have a voltage drop of 3.4v or so and wouldn’t work with the PSX. If you’re ok with the leds only working via USB with the paewong, go for whatever one you like.
oh yeah i forgot to mention that its a dual mod with the psx/paewang would that limit the LED i can use…I dont really no much soo thanks for the help.
I got a bunch of good quality pictures but didn’t finish. I’m at the end - just need to rehook up my buttons but the fiance…yeah…yeah…
I do have a question though, what;s the purpose of the top row on the LED board - where it’s labeled blak and gnd I think it said? Vcc and GND are pins 1 and 13 respectively, so I’m a bit confused with that top row. Hopefully I’ll get time to finish tonyte.
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that was where it connected to the computer for coding, debugging, etc. No need to sweat those holes at all.
On the first page diagram, it says to connect Pin 7 to the PCB ground, the positive end of the LEDs (through resistors) and the negative end of the power supply through a switch.
If I am powering the IC chip with the 5v usb red wire (positive I’m guessing), which wire would be the negative end of the power supply?
good good look out. How much did your programming setup run anyways? What was the point of studying assembly if I never get to use it heh…
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ground, aka the block wire
For the atmel chips I use an AVR dragon for most of my work, which is $50 but benefits from about $30 in additional parts.
The shielding black wire or the other black wire?
The other wire. you can ignore the shielding grnd
Hmm, I was getting some random intermittent bleeding LEDs, but then I changed to 3x AA power supply and that fixed it.
Now the problem I have is that sometimes the light will hang there after I’ve finished pushing the button, could it be a faulty IC chip?
Also, if I push another button, it will stop the light hanging.
Yay, I ‘would’ be done, but I have two issues. Everything outside of those issues is working greatwith the LED board and the KNserts. I have still shots and video footage during steps in the process. I’ll post them/redo them when I fix these two issues.
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The KNserts worked PERFECTLY with the FGWidget board. However, my joystick LED hasn’t been so fortunate. It reads perfectly into board, as it interrupts the screensaver like it should - but the LED I wasted a night working on - needs a cup of akryte. It’s one of two things I’m thinking. The resistor arrays are what 150 ohms each I think. Well the LED I got from radio shack yeah I know, go me isn’t the same size as the SMT LEDs on the KNserts, but I’m still using the 150 from the resistor array, on it…I don’t know if thats why its not working, or - the more likely issue (because its not coming on at ALL) - I fudged up the installation. I’ll look at it tomorrow.
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I am using a two tone button - purple and black, however the plunger I am using is solid black - and while the KNserts still light up a bit thru the edges like I wanted, its just not enough. So I am going to get some black paper tomorrow and cover the white plastic that came with the button originally with it - and stick that in, nothing major - I just dont’ have the paper here.
I’ll have a htorough write up on everything sometime this week.
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Radio Shack is a waste of time. If you want bright and done right, dig through digikey.
Congrats on the install! i’m interested in how you did the LED on the joystick to keep it from getting all bound up when you play. looking forward to see your work.
Yeah, I I needed a couple things for my soldering iron so I stopped there and saw a ‘white’ LED, so I went with it…ugh…not worth the money.
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