LED pushbutton switches

DJTT Gear & Custom Mods Midi Fighters
1

LED pushbutton switches

So. I understand how to solder the linear and audio taper pots… I have four pushbutton led switches that Im going to use for FX presets 1-4.
Im a little confused as to how Im going to solder those. These are the buttons Im working with:

I see in the schematic where the two +/- 1.5v’s are but then Im having trouble figuring out my output and ground…

then after that what other additional soldering am I going to have to do since Im dealing with LEDs?

Any links that might be helpful will be greatly appreciated. And thanks again for these forums. You guys rock!!!

2

Hey Nissar - I cant really tell from the website either - just buy em and stick a picture up here and we can sort it out.
You will probably have to solder a series resistance in between the led cathode (-) and the gnd (0v).

3

Alright! I have my buttons and here is the schematic. I can see where my +/- 1.5v is and then are the two side ones that have me stumped.

I appreciate the help!

4

oops… I mean 1.7v sorry :slight_smile:

5

Ok Pins 1 & 2 are your switch pins.

Wire one of these to GND, and the other to the digital inputs.

The pins labeled + & - are for the LED.

Wire the + to 5V.

Wire a resistor of between 330 and 1000* Ohms between the - pin and GND.

*Depending on how bright you want it, 330 Ohms will be brighter.

Voila!

6

DUUUDDEE I appreciate your help! I am so ready to fire up the soldering iron!!! I will post pictures of my build soon

Thanks Again,

Nissar

7

Nice I look forwards to seeing your progress!

8

So. I saw female headers mentioned in another thread. I just wanna get a general understanding of what they actually do and what kind should i look for if I have the newer version of the Midi-fighter PCB board.

thanks!
Nissar