after frustrated with my 5 octave piano, trying to play more demanding scores of 6 octaves.
I decided to build one of about 7 octaves, MIDI it can be heard by, bluetooch on PC.
My idea is to look FINANCING, thanks to your help and develop it here, leaving all established information, codes, pc software, PBC diagrams, etc.
These materials would need.
US $2.48 *9=22,32 [Hall Sensor](http://www.ebay.com/itm/10pcs-Hall-effect-sensor-switch-3503-Ratiometric-linear-Hall-Circuit- /201117228387?pt=LH_DefaultDomain_0&hash=item2ed3855d63/)
US $4.99 Imanes Neodimio
US $4.80 *7=33.6 16-channel Multiplexer 74HC4067
US $6.54 Arduino Nano
US $6.99 [Bluetooth](http://www.ebay.com/itm/Wireless-Bluetooth-RF-Transceiver-Module-serial-RS232-TTL-HC-06-for-Arduino-/291087805062?pt=LH_DefaultDomain_0&hash=item43c62f6a86
Approximately 74.44 dollars.
still would have to see how the buttons would do or somewhere to buy them, even without luck.
from already thank you very much.
—> Donate <—