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CHANGELOG.md

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0.7.0 - 2018/01/20:

  • Move to a dedicated PCB
  • Battery voltage measurement not included yet

0.6.0 - 2018/01/18:

  • Add external RTC module and bring back 10-minute granularity for influx data
  • Reorganize pin connections, almost all pins are now used...

0.5.1 - 2018/01/16:

  • More LoPy4 issues: RTC state not kept when running on battery
  • Report data to influx the same way as to thingspeak, i.e. mean data from 6 consecutive measurements, with no timestamp
  • Temporarily removed RTC code that is not needed as we don't send timestamps

0.5.0 - 2018/01/16:

  • Update for LoPy4: change PMS5003 pins because old ones are partially used by LoRa chip
  • Remove LED PWM code (temporarily?) beacuse LoPy4 crashed there...
  • Sleep for 598 seconds because 595 was a bit too short

0.4.1 - 2017/12/07:

  • Fix reading datapoints from file
  • Fix computing mean datapoint
  • Use wake by button to enable debug mode (enable WiFi and exit)
  • Sleep for 595 seconds (5s to compensate for boot-up time)

0.4.0: Send data to Thingspeak using MQTT and measure outside T/RH

  • send hourly mean data (average of last 6 measurements) - this is mainly to learn how MQTT works, it's suboptimal and it should use REST API and send batched updates with multiple measurements
  • Add DataPoint class that gathers all measurements and has adapters for influx and thingspeak formats
  • Move keys to keychain.py that's outside the repository

0.3.0: Button to trigger sending all available data

0.2.2: Keep data file locally until it has been successfully posted * also add LED flashing for storing data, sending data and failing to send data * disable expansion board LED during deep sleep * move Watchdog to boot.py

0.2.1: Resync RTC every time when connecting to WLAN

0.2.0: Gather data every 10 minutes, but send every hour

  • Store measurements data in a text file on flash
  • Once 5 measurements are stored, after taking sixth one send all the data to influx and remove the file
  • WiFi is required before first ever measurement to set up RTC and every hour to send data to influx
  • Some helper data is stored in NVRAM - adjust boot.py to reset NVRAM and delete cached measurements on hard resets

0.1.7:

  • clean up project file, move PMS code to PMS5003 class

0.1.6:

  • install 700mAh battery and step-up circuit inside pycase

0.1.5:

  • fix battery voltage calculation

0.1.4:

  • read 5 AQI samples instead of 10 (no. 2, 4, 6, 8 and 10)

0.1.3:

  • disable printing with timestamp

0.1.2:

  • connect to WLAN and setup RTC in a thread after temperature/humidity measurement

0.1.1:

  • measure temperature, humidity and voltage in a separate thread

0.1.0:

  • AQI
  • temperature
  • relative humidity
  • battery voltage
  • measurement duration