Week 2 Status Update

Goals:

  • Receive sample data from 9-pin output
  • Get parts in for system (radio transmitter, 5V to 3.3V converter)
  • Figure out how PIC can utilize RS232 to get data out of a 9 pin serial and eventually the datalogger

Worked on:

  • Set up radio module to begin interfacing with PIC
    • Adafruit LoRa radio transmitter programmed
  • Got parts in for system
  • Researched LoRa radio receiver techniques
  • Planning additional LoRa radio at receiving end to get data

Challenges:

  • Finding a way to get the various data out of the datalogger is tricky because the datalogger has a different pin setup and usually a program is used to access the data.
    • Also, it is unknown whether if we were to connect to the 9 pin setup what kind of data would exactly come out or if there needs to be some specific signal to get the datalogger data
    • 9-pin connector has ring buffer pin which seems to be used to interface with the data and begin transmission
    • Possible UART connection?
  • LoRa radio receiver with RTL-SDR requires several different packages to be downloaded and organized for an SDR

Next Week:

  • Get PIC to utilize Adafruit Radio Module to send data
    • Most likely SPI connection
  • Set up PIC for sleep/idle mode with real time clock alarms for power conservation
  • Look more into ways to get data out of datalogger
  • Determine which antennas to use for LoRa transmitter and receiver

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