wifi_ssid: "foo"
wifi_password: "bar"
ota_password: ""
api_password: ""
domain: "local"
timezone: "Europe/Berlin"
pump1_ml_sec: "2.15"    # millilitre per second
pump1_dose_ml: "2"      # millilitre per dose
pump2_ml_sec: "2.15"    # millilitre per second
pump2_dose_ml: "5"      # millilitre per dose
tcs34725_gaf: "1.0"