Thread: Need a circuit built or designed? I'm your man!

Originally Posted by Pistolen08

Just out of curiosity, do you think you could make one one these? (i wouldn't actually have you do it since they are illegal...
http://www.ladyada.net/make/wavebubble/index.html

that's too small of soldering...

Originally Posted by ukchris

The iPaq should be almost irrelevant, what I want is a switch that is activated when there is an audio signal then deactivates when it is gone (after an adjustable delay). My head unit has a phone mute option, it is activated by grounding a wire (the switch) which mutes the head unit and switches to a separate input. The idea is that when the iPaq "speaks" directions the circuit senses it, triggers the switch which mutes the music, I hear the navigation directions (throught he phonbe connection) then it switches back to playing music.

Ideally it should have two 3.5mm jacks so I have a split output to the head unit (I know this could be split beforehand but thought it would be neater this way).

Chris.

yup, this is pretty simple...unfortunately you may lose the first few letters of the first word, as the circuit will have a (very small) reaction time. I don't really see a way around this.

I might need one of these too... http://www.uoguelph.ca/~antoon/circ/activant.html tuned for AM reception.

Originally Posted by ccsnet

I have a couple of simple suggestions ( eg RCA to VGA Reverse Camera Switch with USB control / notification ) that would benifit me and the rest of the community and I guess make you some money at the same time....

I'll post them up later for you to see what you think.... just off to work now

Terran

I would be interested in RCA/VGA auto switcher.

Originally Posted by ukchris

I might need one of these too... http://www.uoguelph.ca/~antoon/circ/activant.html tuned for AM reception.

$20 shipped.

Originally Posted by Zebelkhan

I would be interested in RCA/VGA auto switcher.

post a schematic or full description of what you're talking about, and I'd be happy to

Originally Posted by greenman100

post a schematic or full description of what you're talking about, and I'd be happy to

A device simillar to Cheeze box. You would have two inputs. A VGA input connected to your computer and a RCA input connected to your backup camera. You would also have one VGA output going to your monitor. In default mode, the device is on VGA in-VGA out. When it detects signal on the RCA input, it automatically switches to RCA in-VGA out. When RCA signal is turned off, it goes back to VGA in-VGA out again. Device needs to operate with either 12v or 5v power as these are readily available from an in-car PSU.

Originally Posted by Zebelkhan

A device simillar to Cheeze box. You would have two inputs. A VGA input connected to your computer and a RCA input connected to your backup camera. You would also have one VGA output going to your monitor. In default mode, the device is on VGA in-VGA out. When it detects signal on the RCA input, it automatically switches to RCA in-VGA out. When RCA signal is turned off, it goes back to VGA in-VGA out again. Device needs to operate with either 12v or 5v power as these are readily available from an in-car PSU.

you need a VGA scaler for this, and that is way out of my league as far as design goes.


I could adapt an existing cheesebox to autosense the input, but could not build one from scratch.

Thanks. I will try to find a cheezebox then.