Based on the work of Open Green Energy. https://www.instructables.com/id/Solar-Powered-WiFi-Weather-Station-V20/ Authors of the base code: Keith Hungerford and Debasish Dutta - Excellent work, gentlemen!
Major changes:
- simplified, restructured code (used Adafruit libraries for BME280 instead, sorry for this Keith)
- added relative pressure, dewpoint, dewpoint spread and heatindex calculations
- allow Blynk, ThingSpeak and MQTT data transmission
- redesigned box (simplified printing, less plastic usage, full snap-in)
- available languages (a big thank you to the contributors!)
- English
- German
- Italian (Chak10)
- Polish (TomaszDom)
- Romanian (zangaby)
- French (Ludestru)
- Spanish (Fedecatt)
- Turkish (Mert Sarac)
- Dutch (Rickthefrog)
Changes in V2.3
- included famous Zambretti forecaster (see Blynk example)
- added translation table for Zambretti forecast
- added multi language feature
Changes in V2.31
- added Dewpoint Spread
- fixed some minor things
- added Zambretti forecast in Thingspeak (thank you ThomaszDom)
Changes in V2.31 (MQTT version)
- allows to publish data to MQTT broker (alternative .ino file)
Changes in V2.32
- Battery monitoring and going to hibernate if battery low (battery protection)
- Warning text will be shown instead of Zambretti prediction if batt low
Changes in V2.33
- Corrected bug in the winter/summer adjustment for the Zambretti forecast
Changes in V2.34
- added August-Roche-Magnus approximation to automatically adjust humidity with temperature corrections
- Code cleanup
Print the box yourself: https://www.thingiverse.com/thing:3551386
Blynk Example (here: German version):
Blynk project settings. Get Blynk in AppStore or GooglePlay and scan QR Code. You might need to purchase Blynk energy to load full project. 3'600 Energy needed for Blynk.
Showing the data on a LED display: https://github.com/3KUdelta/MDparola_MQTT_monitor
Node-Red example showing MQTT messages on dashboard.
ThinkSpeak Example (ThingView iOS):
