=====Dragonfruit Team Meeting - April 24th, 2017=====
Attended: Kevin, Gordon, Tyler, Kaeo

==== Updates ====  

  * Working with Allie to get debug LEDs up and running
  * 3.3 Voltage Regulator was thought to be faulty on board 5
    * Regulator still didn't output anything when part was replaced
    * Tested other pins, and found out the enable pin was also zero
    * XBee Vreg takes XBEE_EN from MCU as the enable value
    * Sensor 5V Vreg takes SENS_EN from MCU, and is working find
    * **We conclude that the reason for this problem is most likely because MCU is not coded correctly, and is not set to enable the XBee voltage regulator**
  * Updated bill of materials for version 2
  * Waiting on key to use roof for testing
==== Problems ==== 
  * Lost XBee, using another one
  * XBee unable to communicate with gateway 
  * Unable to go to roof because 
==== Meeting w/ Allie and Nathan ====
  * Didn't program MCU to work with LEDs
  * Didn't get XBee to work (will try with Dylan tomorrow)
  * Discussed possible debug options
    * First, confirm whether dropped packets are attributed to low XBee power or high XBee power
      * LED to say if voltage was too low or too high
      * Time stamp the time it occurred 
    * Further test XBee to see other cases when it shuts off
    * XBee off/sleep 
      * Currently connected to MCU but not programmed
      * Unsure if this is what might be shutting off XBee or not
    * Look into gathering data on an external source to cross reference with data gathered on gateway

==== Tasks ====    
  * Set up all reference pins to observe changes in data on roof
  * **Charging chip debug LED tests**
    * 1 - 5bit number to voltage tests
      * this is used to make sure that the charging chip follows tryston's charging chip behaviors
      * to be completed for adafruit charging chip and dragon fruit charging chip
      * 5bits = 31 in decimal
      * 00000 = 0 = 3V
      * 01001 = 9 = 3.9V
      * 01101 = 13 = 4.3V
      * 10100 = 20 = 5V
    * 2 - Use 3 debug LEDs to visually indicate when switching between solar panel and battery
      * LED 1 : Vload = Solar Panel 
      * LED 2 : 4.3 < Vload < 4.5   (around the voltage that Vload switches from Panel to Battery power)
      * LED 3 : Vload = battery mV
      * If all are off, then the load voltage is between 4.3V and battery voltage
      * Need to connect Vload to MCU
    * 3 - Use LEDs to flag Ghost voltage, low XBee voltage, and dropped transmission
      * LED 1 : Ghost voltage is 4V (this is much too high for XBee power)
      * LED 2 : XBee voltage at less than 2.7V (full range is 2.7 - 3.6V)
      * LED 3 : flag for transmission (we do not know how to do it yet)
      * Need to connect XBee power to MCU