For our first year engineering project, we are creating a guitar tuning device. We'll need to control 6 different motors separately. The motors each will turn a small knob (<1 inch) against a 10-20kg string tension.
- Manually pluck guitar string and measure frequency via android microphone.
- Depending on frequency, rotate motor at calculated speed/power.
We would also prefer to be able to do the following:
- Use absolute motor encoder to set motors to the same initial angle (0°).
- Use back EMF to detect when motor meets heavy load.
From what I've read online, I think we need:
- Android phone
- Arduino board
- Wireless/Bluetooth (USB dongle?)
- Power supply (Breadboard + AA batteries?)
- 6 Motor driver
- 6 DC Motors (absolute encoders)
Is this correct? Any recommendations/suggestions on what parts we should buy?
