Touch Strips used in the Mojo

[lqbert]

Moldover:

In another forum you mentioned that you're using the Spectrasymbol SoftPots in the Mojo, I believe.  Did you compare them to the HotPot line?  If so, can you tell me why you chose SoftPots over HotPots?

Also, how are they physically connecting them to the controller board?  Do they go to some kind of connector that is broken out into .1" spaced pins or something like that.  I'm looking for something like what's used on PSP touch Screen breakout board on SparkFun.com:  http://www.sparkfun.com/commerce/product_info.php?products_id=9224
Or, some other easy way to connect the pins of the SoftPot/HotPot to my mainboard (.1" spaced stripboard.... FYI, I'm in the process of building a DIY controller)

Another thing about these SoftPots:  Since they have a range of 100-10,000 Ohms and not 0-10,000 Ohms, are you having any issues with not getting the full range of values (0-127)?  I know it would be close to the full range of values (theoretically 1.27 - 127.... in actuality 1-127) but that wouldn't be ideal for me.  If you have indeed run into this issue with this product, how was it rectified?

Thanks again for the inspiration... you are a big part of why I decided to start this project!

Later,
lqbert

Thanks,
lqbert

[Moldover]

Hello,

Hotpots are the same as softpots- they are just resistant to super high temperatures (like next to an car engine hot).

It's easy to use softpots with standard DIY MIDI brains.  You just need a 33K Ohm pull down resistor.  I will publish a document including this and a bunch of other controller building info in the next few months.  If you can't wait- just order a softpot and a 33K resistor and a brain and you can figure it out like I did.  I haven't found any useful connectors for these things- I'm just soldering to their "solder tabs". 

Good luck,
( ! )