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Hi all, just sharing my recent experience working with a Growatt SPF 3500 ES and the included WiFi-F module. I have a few other solar systems already feeding their data into InfluxDB and Grafana, and wanted the new Growatt unit to do the same. Otti’s project on GitHub provided some inspiration...

I had an unusual problem to solve recently - I have a cabin that's completely off grid and not connected to any public water supply, running on stored tank water only. This is in a fairly arid area, so water is precious and can't be wasted. One risk that's been sitting in the back of my mind is...

Hey everyone, I'm currently using a Growatt SPF 3500 ES and have observed some strange problems during the day: Problem 1: Float charging stops a couple hours into the day, usually about 10AM, and my battery quickly drops below the float voltage due to the various connected loads. Charging...

I'm experiencing a strange problem with my BMS, where I can't set or modify two of the delay values (charge over-temperature and charge under-temperature). They report as 255s, and if I attempt to modify this value to anything else, it would appear the change was successful however the number...