Adding to cartridge?

I have a clear SNES game shell that I am trying to add an LED light inside. I purchased 5v LED light (link below), and I can't get them to work. I looked at the SNES cart pinouts, and I have one side to 5v connector, and the other side to ground. I also tried to put the 5v to the outbound side of a diode on the cart, and that does not work as well. Any ideas on what I may be doing incorrect? Thank you.

Try driving the LED from a separate 5V power supply (such as a cut-open USB cable) first.

Not quite sure what you are asking, I do not have much knowledge on any of this hehe. I did get one working on a NES cart a long time ago, but I can't seem to locate it to see how I achieved it =(

I did manage to get the led to light, but apparently it was pulling juice from the battery as it would stay lit up, but not at full strength.

Please forgive me if I tell you anything you already know:

So LEDs aren't like incandescent light bulbs: they only light in one orientation. (hence light emitting diode). Usually they have a longer side and a shorter side - see https://learn.sparkfun.com/tutorials/po ... d-polarity

I was suggesting using a known 5V power source—whether from a USB port, since the cables are red (+5V) and black (0V) inside, or from three AA/AAAs—to assure yourself that you 1- have a functioning LED and 2- to know what orientation you need to use it in.

Yep these have a long and short side. I know the lights are good as I can test them by connecting one side to ground, the other side to the 3v battery. They are 5v lights, but it gives it enough power to see that they light up, though fairly dim.

So you connect the short side to ground and the long side to +5V on the PCB and you put it in the SNES and nothing happens?

If it lights when you connect it to a battery, but doesn't on the cartridge, you've got to be somehow miswiring it...

That's correct. I am using the pcb info here, as well as a few other places, and all are showing the same.

https://www.caitsith2.com/snes/flashcar ... nouts.html


vcc=5v?

Diodes are fixed voltage, you'll burn it up (sometimes instantly) if you hook it up directly to 5V. You need a resistor in series. Usually 330ohm is a good value. So 5V-resistor-LED-Gnd or 5V-LED-resistor-Gnd. Like I said, it's possible to blow them almost instantly, so it might already be dead.

Sorry to not contribute to you question.

May I ask where you found a clear SNES shell, I'm looking for a couple myself.

Thank you.