sorry peter i have some errors ! look the new picture for the matrice .
left hand this is exactely 305 mm for the magnets and 362 mm for the total for 49 magnets but for the rignt hand is exactely 310 mm for 50 tiges but my IDE is for 49 magnets! because one touch is not acoustic no sound . I adress the picture for the right hand this is exactely. For theses wires this is very difficult only one cable . I adress other pictures thank you
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Conception de 2 circuits imprimés avec capteurs à effet hall , et une carte arduino , pour un accordéon
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