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cyrils / renogy-bt

Python library to read Renogy compatible BT-1 or BT-2 bluetooth modules
GNU General Public License v3.0
94 stars 39 forks source link

Query - get close to real-time readings #1

Closed SharkyWaters closed 1 year ago

SharkyWaters commented 2 years ago

Hey I'm new to Python and am trying to log basic info (voltages and currents) from a Renogy BT-1 module as part of a mechanical engineering project at university. What would be the best way to make a loop to get the highest possible resolution out of this code (e.g. 30second intervals)? I'm going to pipe the terminal output to a csv file so I can manipulate the data using Excel. Any help and guidance will by greatly appreciated! Thank you!

cyrils commented 2 years ago

Its is possible with little bit of tweaking. I had a branch lying around with real-time monitoring, let me see if I can find it. Or you could just use https://github.com/Olen/solar-monitor

SharkyWaters commented 2 years ago

Thank you very much for checking! I really like the simplicity of your code and only need the basic output. Nonetheless I have tried getting Olen's solar monitor going but have been haven't had any luck yet.

cyrils commented 2 years ago

Check this branch https://github.com/cyrils/renogy-bt1/tree/real-time. It needs some polishing, I will do it later.

SharkyWaters commented 2 years ago

Wow thank you! ill be able to access the panel and charge controller again early next week, so ill give it another shot then and let you know how it goes!

SharkyWaters commented 2 years ago

Hey! Just wanted to let you know that I finally managed to test the new code for real time monitoring. Works perfectly down to 0.1sec intervals! Thank you so so much for the help!

cyrils commented 2 years ago

Glad that helped. Hope you are not stressing the device too much with 0.1 sec polling.

SharkyWaters commented 2 years ago

Yeah, I was worried the Pi might not be able to handle it, but I've run the logging for a few minutes and it held up perfectly! Only have an issue every now and then where it fails to establish the bluetooth connection, but turning the bluetooth on the Pi off and on and/or restarting Thonny seems to do the trick :)