How to create feeds that data survives reboots and issues

[Ashipa (AshipaEko)]

Hello,

New to all of this, so forgive my dumb questions.

I’m trying to use a self hosted instance of emoncms. Capturing data from my inverter and battery with some scripts.

Got the setup to a point where for example i have 2 feeds for solar production

1. Log to Feed
2. Power to kWh

These data do not survive a reboot of my Raspberry Pi

I’m trying to have a setup where i can have feeds for

Daily Solar
Monthly Solar
Annual Solar
All Time.

Feed data that will survive restarts or reboots ot anything going wrong.

ALSO

I have Battery data from my DIY bank
Battery watts in
Amps in
Battery Watts Out
Amps Out
Remaining Battery AH

I’d appreciate a guide on how to get Battery SOC from these data feeds

Thank you

[borpin (Brian Orpin)]

Hi and welcome.

@Ashipa

Got the setup to a point where for example i have 2 feeds for solar production

1. Log to Feed
2. Power to kWh

These data do not survive a reboot of my Raspberry Pi

How long do you wait to reboot? The data is initially written to RAM and then written to disk (usually). Go away and make a cuppa, then come back and try a reboot.

On the Inputs page you create the processing as you state.

Post an image of your processing (example for processing a pulse input)

The 3 names on the RHS are the Feed names.

On the Feeds page you will see the data that is stored.

[Ashipa (AshipaEko)]

Thank you.

I did a reboot after 3 days logging because i needed to restart the Pi for other reasons.

That was when I discovered the data disappeared.

This is what i currently have.

I have a dashboard setup to display these feeds

[borpin (Brian Orpin)]

Is this a standard setup on a Pi?

Go to admin and see what the Services say especially feedwriter

[Ashipa (AshipaEko)]

I found that feedwriter was red, so i tried to reinstall. there was an error message with mysql which i solved by installing php-mysql.

This is what i have in there now. feedwriter is now green

[borpin (Brian Orpin)]

@Ashipa

there was an error message with mysql which i solved by installing php-mysql.

So in answer to my question, a non-standard install.

[Ashipa (AshipaEko)]

@Ashipa

I’m trying to have a setup where i can have feeds for:

Monthly Solar
Annual Solar
All Time.

Feed data that will survive restarts or reboots ot anything going wrong.

ALSO

I have Battery data from my DIY bank
Battery watts in
Amps in
Battery Watts Out
Amps Out
Remaining Battery AH

I’d appreciate a guide on how to get Battery SOC from these data feeds

Thank you

Yes. Thank you for pointing me in the right direction. I have now tried a reboot and my data didn’t disappear.

Please assist me with the rest of my question if you can.
thanks

[Jaddache (Simon Sykes)]

@Ashipa

how to get Battery SOC from these data feeds

Isn’t Battery SOC = Remaining Battery AH / Battery Capacity AH?

[borpin (Brian Orpin)]

@Ashipa

Please assist me with the rest of my question if you can.

@Ashipa

I’d appreciate a guide on how to get Battery SOC from these data feeds

Sorry, no idea

[Ashipa (AshipaEko)]

sadly i am completely clueless about how all of these work.

I’ll appreciate a screenshot or some sort of guide. I’m guessing it’ll be a virtual feed like this?