Teensyduino

[Juri]

nice one Juri - looking forward to the next part

are you gonna do some prototype pcb's for the pots or are you just gonna solder the wires directly?

Thanks!
I think I'm going to solder the wires directly to the pots or maybe use some small crimp-connectors.. not sure yet.

[MiL0]

crimp connectors was what I tried... that's how I had the connection problems...

do you have aim/msn/skype? wouldn't mind having a chat with you about teensy stuff

[Juri]

crimp connectors was what I tried... that's how I had the connection problems...

do you have aim/msn/skype? wouldn't mind having a chat with you about teensy stuff

Okay.. that's good to know! I did some prototyping with pots and buttons and didn't experience any problems. But I used crimp connectors only with buttons. Perhaps they are not suitable to use with analog inputs.. Anyway, probably I just play it safe and solder everything together in the final build.

Yeah, I have msn. I'm gonna send you a message!

[Skirmitt]

On my project I did add capacitors on the pots to stabilize the signal. 100nF was enough for me.

[MiL0]

hmm, capacitors might work but that would involve more soldering... I was trying to attach pots to my teensy without doing any soldering at all (by crimping 1x5 'dupont' connectors like these http://www.pololu.com/catalog/product/1920 to the pots terminals)

Juri - just got your pm.. i'll hit you up soon

[Skirmitt]

They are not necessary but believe me they stabilize the signal significantly. Only 2 soldering points per potmeter. Try it for one, if that works ok for you, do the rest you wont regret it !

[Juri]

They are not necessary but believe me they stabilize the signal significantly. Only 2 soldering points per potmeter. Try it for one, if that works ok for you, do the rest you wont regret it !

Hmm.. Sounds interesting. If it balances the signal and helps with pot accurancy, I definitelly should try this. How do you exactly connect the capasitor? Between two potentiometer lugs?

[Skirmitt]

Add it from ground to the center pin (runner) of the potmeter.

[MiL0]

On my project I did add capacitors on the pots to stabilize the signal. 100nF was enough for me.

would these be suitable?

http://www.ebay.co.uk/itm/40-x-100nF...item45fde4fd53

is 50V too much?

[Skirmitt]

They are suitable. You can go to 1uF if you want too.
Oh and in the code you can also add something like taking 5 samples and compare if they are equal. If so compare with the previous value and if necessary send a new midi value.
Another approach is counting the values together and dividing by the number of readings, comparing, ... and so on.

I do it like the first way and this works good.