Tagged Questions

1
vote
1answer
141 views

Build an Audio Toggle Box

I want to build a small box with two audio inputs and two audio outputs, with two switches to control the current input/output. Something like this: http://www.youtube.com/watch?v=mQzLnt0_-zU I've ...
2
votes
2answers
151 views

How do I get a relay to recognize when a TRRS jack is plugged into my iphone?

I'm working on a project where I would like to put an aux input in my car. I was thinking of hooking up my CD changer output wires to a relay and then hook up the aux wires to the other part of the ...
5
votes
4answers
272 views

Does a switch need to be debounced when opened?

Suppose that an input on a microcontroller has a pullup resistor to 5V and a switch to ground (normally open) connected to it. I know that a switch should be debounced (in my case, in software) when ...
1
vote
2answers
129 views

Connect multiple in/outputs in predefined order (beginner question)

I want to create a device for my guitar pedals which can rearrange my pedals in any given order. I have the following: At the beginning of the device I have an input for my guitar. For each pedal I ...
1
vote
2answers
302 views

DPDT switch for on/off

Hey all, I'm fiddling with a breadboard to make some logic gates and instead of buying spst switches, I bought dpdt switches because they were the only ones that would fit in the board. :/ Can I ...
6
votes
1answer
440 views

How to implement a “rotary switch” like in audio equipment?

for my current project I'm planning to use an input "device" like this in the photo (don't know its real name): It is used in a lot of musical instruments and it is like a potentiometer that can be ...