Remind me... Do you have the Emerson R48-3000e?
In that case
@upnorthandpersonal github repository will do the trick for you.
I am using essentially the same code for my controller, plus some BASH interfacing, systemd servicing / cron to semi-automatically update the setpoint based on electricity rates.
Right now it's "open loop" but I plan to also do closed loop as soon as I get the chargers readings and the jk bms reliably
.
There are a bit more instruction in my repo about the pitfalls of the programming etc.
You might not need all of the stuff, but you could get a few tips
Solar Controller Tools. Contribute to luckylinux/solar-controller development by creating an account on GitHub.
github.com
The script from
@upnorthandpersonal is also fine if you are into programming, but it's quite bare-bones (no offence
@upnorthandpersonal ).
You need to manage the looping yourself, unless you want to set a PERMANENT voltage setpoint & current limit and NEVER touch that again.
Right now, with my script, you setup the script and an excel lookup table each day, and it can do the variable voltage.
Or you can use my code as inspiration and setup just a looping with a fixed value "ad-hoc".
It's just important that you implement a way to make sure the service and looping starts automatically at boot in case you reboot etc.
Otherwise it will fall-back to it's pre-programmed PERMANENT values.