vk2psf
New Member
Posts: 24
Raspberry Pi: Yes
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Post by vk2psf on Feb 19, 2019 14:46:28 GMT -8
Lies, Damned Lies and Statistics Measuring to monitor design changes. I have uploaded 3 days of data to Plotly. Plotly Data 71The default view is not much use, however by clicking on the data legend and adjusting the slider you can look at sections of data. For example, this shows Message delay (time between valid messages - blue) and the Message Id counter - Red. The delay peaked at 19 minutes, even though the message id is still increasing, so the unit has not reset. Although I have used lines for the chart for visibility, with the possible exception of the Message Delay line using this display type lies... for example the red Message Id line implies that the data steadily came through, when you can see that there were many delays of no data received. However, the message Id has not exceeded 200. Good news watchdog works... bad news watchdog has to work. Monitoring the RF trace there were more good packets over the air, the delay should not be this high, so time for some antennas, My target is a good message within 4 minutes Awaiting some more parts for the next bit of the build, although the case and everything so far is actually working quite reliably. Also, for a change, we finally have a very overcast day (humble brag!) so I can see how the Solar performs. It has been recharging the small battery easily in 2 hours of direct sun. .../alex
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Post by SDL on Feb 20, 2019 18:41:17 GMT -8
Plotly rules! Great data.
Do you have the RTC installed? If so, I think you will find the system works better in the free running mode without the clock.
BP
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vk2psf
New Member
Posts: 24
Raspberry Pi: Yes
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Post by vk2psf on Feb 24, 2019 14:08:58 GMT -8
The RTC has been removed for all the data collection above.... the dropouts were similar with/without the RTC.
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Post by SDL on Feb 24, 2019 17:23:39 GMT -8
vk2psf,
Removing the RTC gives higher reliability to the lockup issue, like I run for months.
BP
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