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Pro2 PLUS - The meaning of the two colored dots to the left of the time display
Pro2 PLUS - The meaning of the two colored dots to the left of the time display

There are two colored dots to the left of the time display, which can light as Red, Yellow or Green. What they mean?

They are related to the internet connection through the WiFi module.
The first dot on top shows the state of the NTP clock sync function.
The second dot shows the state of the upload to Wunderground function.
If you globally disable the use of internet functions here:

// --------------------------------------------------------------------------------------
//   Internet Settings
// --------------------------------------------------------------------------------------
#define Enable_Internet     0                       // 1= Enable Internet connection, 0= Disable

the two dots always light in RED color. However you can keep this setting enabled, and individually enable or disable the NTP clock sync function, or the upload to Wunderground function.

#define Enable_NTP          1                        // 1= Enable Sync time with NTP servers, 0= Disable
#define Enable_WUupload     1                        // 1= Enable upload to Wunderground,     0= Disable

If enabled, connection to your home Wifi is done automatically at system startup (see user configurable options to set network ID and password).

Supposing both functions are enabled, and the system has got a successful connection with your home WiFi:

- If the unit was able to sync the internal clock with the defined NTP server, the first dot will light in Green colour, otherwise it remains Red. When this function is active, the unit attempts to sync the clock with the defined NTP server every hour.

- The second dot, will stay in Red colour until the first attempt to upload to Wunderground. During the first minute after each attempt, the dot will light in Yellow, if the attempt has success it will turn Green, otherwise it returns to Red.
MeteoCercal - Air Quality Data
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Thanks for the detailed information; much appreciated
Jim  Idea Smile

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