You can check device connection logs to obniz Cloud and Websocket API connection logs.
Logs are displayed in ascending order of the date and time they were recorded, with the more recent logs displayed the further down the log.
Daily bar view
The connection rate for a selected day (or the day the page was opened if none is selected) is displayed hourly, covering the past week.
Detailed history view
Below the connection rate view, you can retrieve the detailed logs for the selected date, view them, and download them as CSV.
For devices that use the cloud log sending feature on OS 7.1.0 or later, you can also view the device logs from before the device came online (the information shown on the serial console) within this history.
This lets you understand what happened while the device was offline, as well as the connection events that occurred while it was connected.
Manual Fetch / Automatic Fetch
Manual Fetch
Pressing the "Reload" button retrieves all logs newer than the bottom (most recent) log displayed.
Automatic Fetch
When the "Auto Fetch" checkbox in the upper right corner is checked (on by default), it queries for new logs at 10-second intervals.
The range of logs retrieved is the same as for a manual fetch.