TODO:

• Next:
  • Thread safety - use proper mutexes to guard shared data.
  • Pin tasks to cores, and use real task priorities
  • Check for errors from task creates, other calls
  • ESP logging
  • Add tests
  • React to flaky network:
    • Periodic background scan for better wifi channel
    • Ping local gateway, and google.com
    • If ping goes bad, try switching to a different channel or network
    • Keep a list of BSSIDs, some sort of mapping from RSSI to 95% ping latencies and
• other integrations:
  • Chillibits ?
  • weather underground?
  • doiot.ru ?
• Bonus fun:
  • lvgl screen fun
    • No flicker
    • include wifi network, rssi, IP
    • display wifi ssid, password, IP in wifi setup captive portal
  • outliers:
    • don't produce values for the first 2m
    • but produce "raw" outputs that I can scrape
    • exponential moving average
      • also an exponential moving average of the error
      • try not producing values when the error moving average is too high
      • Error:
        • from absolute zero
        • then as the long from absolute zero
    • and then I can try circular buffers and SMA
  • keep a circular buffer of timestamped results, show SMA (10s?)
  • Two colored LED lights - one for Co2, one for AQI
  • OTA updates?
  • Auto-Refresh status page - query option (ESP async webserver)
  • Keep timestamps for sensor readings
  • quantize logs, show hourly graph (minutely?)
  • Keep logs on flash?
  • try polling BME less often, less self-heating?
  • advanced log dump web page?
  • ambient light sensor, adjust led brightness?
  • Captive portal - use WIFI_MODE_APSTA?
• Reliable
  • watchdog
  • serial to webpage
  • Render time to web page, Wifi info, RSSI, channel, etc., number of wifi disconnects
  • Watchdog
    • reboot if no HTTP requests for 5m
    • reboot if can't ping some service?
    • reboot if can't connect to self webserver?
    • Write out to flash the number of resets
    • Figure out how to use the RTC watchdog
  • push to influxdb
  • clean up wifi code
• Gifts:
  • Trigger CO2 Calibration?
  • Reset button?
• TTGO
  • Write display routine
    • WiFi SSID, signal, IP address
    • AQI #, color
    • CO2 #, color
    • Temp / Humidity / Pressure