new round: improved prototype

A semester and a working prototype later, we decided to improve upon and reevaluate our design. This page is devoted to our second chance at creating a user-friendly, compact, and illuminated product.

• Wiring improvements
• Correct Digital Potentiometer
• New power supply design
• Channel 1 replaced with Bluetooth
• Raspberry Pi code improvements
• Raspberry Pi safe shutdown pack
• Enclosure and backlighting improvements

The following images reflect the upgrades that come with the Mixer 2.0, with respect to the Mixer 1.0.

power supply schematic

cadsoft eagle printed circuit board

testing and troubleshooting: noise

a compact enclosure

Mixer 2.0 user guide

• Give the Mixer power by A/C cord, switch to ON, red LED indicator
  
• Plug in 3.5 mm aux cord input, up to two
  
• Connect via Bluetooth on android and iphone
  
• Connect speakers to output aux port
  
• Adjust volume /or mute channels
  
• LCD displays feedback data
  
• Utilize master volume if needed
  
• Enjoy user-friendly controls