wemos-weather-simple

Simple Weather Station

Configuration

• in src folder copy secrets_template.h to secrets.h and fill your own

  • Blynk API Token
  • AdafruitIO login
  • WiFi SSID and Password
  • MQTT server, username and password

• in src folder update config.h

  • comment/uncomment define/undefine to select integrations (Blynk, AdafruitIO)

• pio run

I2C Devices

• 0x23 - BH1750 light meter
• 0x3C - SSD1305 monochrome OLED
• 0x40 - INA219 DC Current Sensor
• 0x76 - BME280 Temp/Barometric/Humidity

MQTT

Currently, topics published from SWS to Mosquitto MQTT server are stored in InfluxDB and shown on Grafana dashboard. Thus the payload of the topic is in form of Influx Data Line:

key field=value

Integration between Mosquitto and InfluxDB is over Telegraf.

Currently published topics are

• sensors/sws1/temperature
• sensors/sws1/humidity
• sensors/sws1/pressure

Libraries

• Adafruit GFX Library
  • pio id #13
  • (https://platformio.org/lib/show/13/Adafruit%20GFX%20Library)
• Adafruit SSD1306
  • pio id #135
  • (https://platformio.org/lib/show/135/Adafruit%20SSD1306)
• BME280
  • pio id #901
  • (https://platformio.org/lib/show/901/BME280)
• SSD1306Ascii
  • pio id #5169
  • (https://platformio.org/lib/show/5169/SSD1306Ascii)
• Blynk
  • pio id #415
  • (https://platformio.org/lib/show/415/Blynk)
• Adafruit MQTT Library
  • pio id #1092
  • (https://platformio.org/lib/show/1092/Adafruit%20MQTT%20Library)
• Arduino Http Client
  • pio id #798
  • (https://platformio.org/lib/show/798/ArduinoHttpClient)
• ArduinoJson
  • pio id #64
  • (https://platformio.org/lib/show/64/ArduinoJson)
• PubSubClient
  • pio #89
  • (https://platformio.org/lib/show/89/PubSubClient)
• TroykaMQ (MQ135 support)
  • pio #2537
  • https://platformio.org/lib/show/2537/TroykaMQ
• Adafruit INA219
  • pio #160
  • https://platformio.org/lib/show/160/Adafruit-INA219
• GxEPD
  • pio #2951
  • https://platformio.org/lib/show/2951/GxEPD
• BH1750
  • pio #439
  • https://platformio.org/lib/show/439/BH1750