Attended: Kevin, Kyaw, Tyler

• Started soldering circuit

• Continued soldering
• Found 0 ohm resistor (pkg 0805)
• Tested using heat lamp
  • Voltage across VCC on the charging ckt (on board) spiked whenever we turned on the heat lamp to simulate the sun
  • Spiked to ~6.4V and suddenly dropped back down to ~4 V
  • This could be one of the problems why the board keeps dying
  • Potential solutions:
    • Capacitor (choose a right value?)
    • If the voltage spike is due to current, we could use an Inductor

• Review csv file for Weatherbox deployment analysis
• Code an arduino to monitor current drawn by charging chip
• Start soldering next week (Tyler)
  • Start with charging chip
• Investigate short circuit current of solar panel (Kyaw)

Contributing authors:

Created by tyamauchi on 2017/10/16 21:21.