Dear All,
I thought I would share this. I have made up 4x 5.5kW LifePo4 batteries with a Heyo BMS in each unit, Heyo BMS (150A @ 48V) has temp/display/UART/RS485 interfaces. I added both the BlueTooth and the USB UART leads to the BMS (the BT module is good to do the battery setup), the UART interface via the USB output plugs into a Raspberry Pi 4 (I tried a RPi Zero, but they are too slow, the Pi 4's are brilliant). The Pi's run Buster and DalyLog (https://github.com/njfaria/dalylog - it seems that the Heyo are exactly the same as the Daly's - including RS485 protocol, but unlike the Daly, Heyo answer every question you ask them within minutes - so no hanging around if you have an issue). The Daly Log SW outputs to MQTT, the MQTT server runs on another Pi (4) which was prepared using this script (https://tech.scargill.net/the-script/). Very good, easy to install and does Node Red at the same time. I added one extra palette to Node Red (UI-Level) which gives nice bar graphs. Along with EMONS CMS (https://openenergymonitor.org/) with some current clamps, I monitor the outputs of my OB Inverters (4x 3.5kW), and the output of my generator (Generac with yet another pi inside running GenMon (https://github.com/jgyates/genmon). Genmon also outputs to MQTT. Now I have a user interface that shows me whats going on with my solar/genny and batteries. All very clever. I can see this from anywhere in the world (not using open ports on my router, but rather a more secure VPN running on yet another Pi (all these Pi's are going to make me fat one day
. It all sounds complicated, but done in stages its really easy. I hope you enjoy... Daniel
I thought I would share this. I have made up 4x 5.5kW LifePo4 batteries with a Heyo BMS in each unit, Heyo BMS (150A @ 48V) has temp/display/UART/RS485 interfaces. I added both the BlueTooth and the USB UART leads to the BMS (the BT module is good to do the battery setup), the UART interface via the USB output plugs into a Raspberry Pi 4 (I tried a RPi Zero, but they are too slow, the Pi 4's are brilliant). The Pi's run Buster and DalyLog (https://github.com/njfaria/dalylog - it seems that the Heyo are exactly the same as the Daly's - including RS485 protocol, but unlike the Daly, Heyo answer every question you ask them within minutes - so no hanging around if you have an issue). The Daly Log SW outputs to MQTT, the MQTT server runs on another Pi (4) which was prepared using this script (https://tech.scargill.net/the-script/). Very good, easy to install and does Node Red at the same time. I added one extra palette to Node Red (UI-Level) which gives nice bar graphs. Along with EMONS CMS (https://openenergymonitor.org/) with some current clamps, I monitor the outputs of my OB Inverters (4x 3.5kW), and the output of my generator (Generac with yet another pi inside running GenMon (https://github.com/jgyates/genmon). Genmon also outputs to MQTT. Now I have a user interface that shows me whats going on with my solar/genny and batteries. All very clever. I can see this from anywhere in the world (not using open ports on my router, but rather a more secure VPN running on yet another Pi (all these Pi's are going to make me fat one day
. It all sounds complicated, but done in stages its really easy. I hope you enjoy... Daniel
