Attended: Brandon, Kim Pee, Jon

• Not all parts working properly
  • Solar charging chip - due to chip layout
• Assemble and test boards
  • Work with Kenny to program boards
  • Make note of what is not working properly
  • Verify connections and voltage measurements
  • Isolate hardware problems
• Revise current design
  • Recreate part library in EAGLE
    • Library for parts available, but not up to quality
    • Remake parts for more control with layout
  • Must use 2 in. x 2 in. profile
  • Freedom with layout
    • Incorporate 4 layer board
      • Tighter and cleaner layout, proper clearances
      • Isolate traces on top and bottom layers
      • Central layers ground and power
    • Alternate packages and parts - design preferences
      • Similar or better, worth cost?
      • Consider more efficient sizes/form factors
  • Go through schematic, understand connections
    • How parts work with each other
  • Create more professional schematic
    • Current schematic unprofessional due to layout
    • Group sensors, interfaces, communications, power, etc.
• Documentation in schematic
  • Current documentation lacking
  • Currently no uniformity
  • Provide labels and extra information (placement layouts, no empty pads, dedicate space)
  • Effective use of space - no empty areas / wasted space
  • Debug lines traced, Vias for power, etc.
  • Resistance values shown for schematic
  • Label part values
  • Part layout at own discretion
    • Wire overlapping unwanted
  • Microcontroller layout same as on board chip
    • Pins in order
    • Good documentation for software
• Divide work between members
  • Clean and update schematic
  • Recreate parts
• Jon will find board and assist with soldering QFN and small ICs
• Manufacturing
  • High quantity, cheap - Chinese vendor
  • Quality, price not a problem - Advanced Circuits
  • Quality, time - Bay Area Circuits
• components
  • Barometer, solar irradiance
  • Solar charging chip
  • Voltage regulators
  • XBee

• N/A

• Prepare for proposal presentation on Saturday, September 26
• Meeting with Dr. Kuh for Weekly Update next week
• Plan to start assembly next week and begin testing in coming weeks
• Look over schematic and other documentation to understand design

Contributing authors:

Created by kpcastro on 2015/09/26 07:34.