Attended: Mizpah, Sharmaine, Xiao

• Got back our order forms signed by Dr. Kuh and uploaded it to Laulima
• Conducted range testing: Different floors
  1. Board suddenly turned off –> battery died
  2. changed the battery but didn't power on –> checked voltage going out from the voltage regulator and it was 5V!
  3. changed the voltage regulator to Pololu 3.3V voltage regulator –> not regulating to 3.3V
     1. accidentally connected it backward –> it got HOT!! [MIZPAH GOT BURNED! ): ]
  4. Since the battery is only 3.4V, decided to just not use a voltage regulator (temporarily)

• XCTU RANGE TESTING NOTES:
  1. Local = XBee module is connected to the computer
  2. Remote = other XBee in the same network (not connected)
  3. RSSI values (dBm): < -80 dBm = poor

• Conduct more range testing
• Waiting response from Dr. Sasaki to send Gerber files to Linda

Attended: Mizpah, Sharmaine, Xiao

• Continuation of range testing: Line-of-Sight
  1. Used LM1086 to regulate the input voltage to 3.3V
• Still waiting for order confirmations from Linda
  1. Mouser: Solar Lithium Ion/Polymer charger, XBee Pro S2C
  2. DigiKey: SMD Switches/Button, 0805 18 pF capacitors
  3. Seeed: PCB

• Continue range testing for not line-of-sight

Contributing authors:

Created by sjavier on 2019/03/08 02:11.