Attended: Kevin, Kyaw, Tyler

• We cut the connection to the on-board charging chip and a adafruit charging chip is currently being used to power the board
  • We need to figure out where the board is getting these odd readings from
  • Also need to figure out if our on-board charging chip is the reason for the missing transmissions
• Left board transmitting over the weekend in the lab to see if the board transmits well (before battery died)
  • alpha.scel-hawaii.org not working to look at data

Update: 9/13

• We've figured out the why the board is reading “odd” solar test voltage.
  • The output of the charging circuit is soldered to the VCC input of the board, which the solar test voltage is reading from
  • As far as the board is concerned, the solar test voltage should be reading half of the voltage from the battery (voltage divider connection)
  • We've emailed Dr. Garmire about the roof top access. Waiting for his reply.

Update: 9/15

• Battery voltage reading from the solar test pin is actually correct
  • The value is multiplied by 2 in the code when transmitted to the gateway
  • Tested sensor data values: Humidity, Temp., Solar Irradiance, Pressure
  • Ready to for deployment test next week
  • We just need to find our solar panels

• Have to test on roof to conclude about charging circuit (working properly or not) with or without the solar panel attached
• Email Dr. Garmire and cc Dr. Kuh for roof top access once we're ready.
• Make sure the sensors are transmitting correct data and battery is fully charged before testing at the roof top
• Make sure we have the new parts for another board
• Deploy the board without the solar panel to see if the board works.

• Solder parts onto a new board
• Find the problems from the old board

Contributing authors:

Created by khein on 2017/09/11 20:52.