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Solar Soil Moisture Meter With ESP8266
missing library is called SimpleTimer
You are missing as well simple timer library. try install that.
Hi Hiroyoki,I checked and I was able to compile under Arduino 1.8.3 with SparkFun Micro OLED 1.2.0 library.I than upgraded all libraries to newest including arduino to 1.8.5 and I was able to compile that example program without errors. Try installing that SparkFun Micro OLED library from library manager.I am running that same devices on photo now for more than year and they work OK, hopefully you will manage to compile after you install that library.Let me know if installing library helped.Miro
Powerful Standalone Home Automation System - Pi, Sonoff, ESP8266 and Node-Red
I put there as well my excel estimates. with 7500 mAh battery and 60s refresh its 11 days only.
Arduino Car Display
How to Repair Your AEG or Electrolux Dishwasher
Solar Powered WiFi Weather Station
thanks. have you tried that blynk part as well?that "bronka" is name of my daughter, attached config was from sensor used in her room:)
Wemos D1 mini temperature/h...View Instructable »
Wi-Fi Magnetic Door Spy