I finally achieved an old dream today : make my own guitar looper ! For those interested, you can find everything here : http://www.arduino.cc/playground/Projets/LooperPourGuitare
Feel free to ask questions, and sorry but it's french language. I'll try to traduce it if some people are interested.
Salut tout le monde !
Alors voila, je viens enfin de rentabiliser l'achat du Arduino par une réalisation concrète : un looper pour la gratte ! Pour les gens intéressés, ca se passe ici: http://www.arduino.cc/playground/Projets/LooperPourGuitare
Hésitez pas à poser des questions, je repondrai pas tout de suite, mais je répondrai.
Which expression pedal do you use? Can you explain how to connect the expresison pedal to your setup? I guess it uses three pins: Vcc, GND and one analog Input pin... where do you connect the three pins to the jack of expression pedal?
Great project! I'd love to see your project page in English if you have some extra time. I haven't had French classes if over 10 years, so I'm afraid my translation skills are horrible. In the meantime, here's the Babel fish link:
for the expression pedal, I used the YAMAHA EP 1. I found it on thomann website, only 22 euros. Currently it`s not available ( on thomann ), but you can have the LEAD FOOT LFX-1 for the same price. It seems to be the same, except connection is stereo jack and not RCA.
For the connection, vcc goes on one PIN ( no matter which I think ), and ground goes on the other, with a resistance between. Analog input is one the ground part. I`m not sure to be clear, maybe if you look at the diagram too it can makes sense.
For the translation, Ill give a try as soon as Ill have a free internet access
I used the translation from babelfish ( thanx danwagoner ! ), and tried to change some things, but there is still a lot of mistakes. Tell me what you can't understand. And if someone is interested in re-working the translation, let me know. I'll give you the admin rights for the blog.