When you go into the Tools menu and click into Self Check, a number of codes will appear. These are:
rtc - Real Time Clock, the internal clock module that keeps time for the station
temp - Temperature, the internal temperature sensor on the FieldKit Upper board
bg - Battery Gauge, the chip that reads the battery voltage
sg - Solar Gauge, the chip that reads the solar voltage
qspi - the QSPI bus, which controls the on-board storage
spi - the SPI bus, which moves data to and from the on-board storage
wifi - the WiFi module, which allows communication with the app
gps - the GPS module, which allows for the station to set its own clock and record its position
sdo - SD card open, whether the SD card is present
sdw - SD card write, whether the SD card can be written to
bpm - Backplane Multiplexer, the chip that tells the module boards which one should be speaking the the main microcontroller at a given time
bps - Backplane Shift Register, the chip that handles data moving to and from the module boards
led - the LED controller, which handles the color and illumination of the status LEDs underneath each of the module boards
lora - the LoRa module, which allows radio communication over longer distances
00X00 - Module Board Status, which shows occupied module bays as an X, and unoccupied bays as a 0, in the order of bay 0-4, where the four are on the module base
If a particular code is highlighted with a white box around the text, then it means that subsystem isn’t working properly. Our team may ask you to do this and report in!