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Simple Axpert / Pylontech Controller


JacquesVDM
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  • 1 month later...

Just an update on my "Lockdown project":

 

- Interfaces to 'Blynk': Can see the values and also change settings using the Blynk app on my phone.

-Google sheets: records data to google sheets. Interval is adjustable. To get a nice graph: use Grafana. I have installed a local copy of Grafana with the google sheets plugin on my laptop. It just pulls the data in seamlessly.  

-IFTTT (If this then that): notifies inverter faults, inverter switching between battery/grid and can also notify at specific SOC low and high setpoints. I have setup my IFTTT to send messages to Telegram. Can also send to email.

 

Hope this gives some ideas for you guys out there doing their own inverter interface controller / software.

Screenshot_2020-05-29-07-00-10-558_cc.blynk.thumb.jpg.f71f1c10161e3817c453a250996a8049.jpggrafana2.thumb.JPG.763f64dd100e44594aad199f0c8967ce.JPGtelegram.JPG.cb178d769fbee9ebf0a0597c3f75a07c.JPG

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  • 3 weeks later...
  • 1 month later...

Hi Windgat. Thanks. Configured esp8266 for two serial ports: one standard and one using software serial on the other two pins. I first used Max3232 level shifters to convert from ttl to rs232 , but changed to a normal discrete transistor level shifter after having endless issues with that chips. So for your question: yes, the voltages on the inverter is too high and must be converted. 

Just an update on the software: have changed the logging from Google sheets to thingspeak now - gives more free memory. Some nice apps for thingspeak on Playstore and can also configure "reacts" on thingspeak to notify me of battery levels, inverter mode etc. 

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Hi Pierre. At the moment it is so customized for the system I have (fixed number of pylontechs / inverter / gauge ranges), that it would not suite everyone. The plan is to have it "universal" with configuring it to the system you have. I also do have a slight problem with it freezing / rebooting from time to time. Once that is sorted I can make it available. The idea at first was to give others (that know some programming) ideas as to what can be done.

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  • 2 months later...
  • 2 months later...
  • 2 months later...

Dear Jacques,

would you mind sharing your source? I am working on a somewhat similar project but switched to the ESP32. Instead of RS232 I am using the CAN-bus to interface with the Pylontech (the CAN bus protocol code I wrote also works for BYD and LG RESU batteries) and interface with MQTT which is connected to iobroker.  Are you using the async-webserver library?

Kind Regards,

dk

PS: I also sent you a PM

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  • 1 month later...
On 2020/05/30 at 4:36 PM, JacquesVDM said:

Just an update on my "Lockdown project":

 

- Interfaces to 'Blynk': Can see the values and also change settings using the Blynk app on my phone.

-Google sheets: records data to google sheets. Interval is adjustable. To get a nice graph: use Grafana. I have installed a local copy of Grafana with the google sheets plugin on my laptop. It just pulls the data in seamlessly.  

-IFTTT (If this then that): notifies inverter faults, inverter switching between battery/grid and can also notify at specific SOC low and high setpoints. I have setup my IFTTT to send messages to Telegram. Can also send to email.

 

Hope this gives some ideas for you guys out there doing their own inverter interface controller / software.

Screenshot_2020-05-29-07-00-10-558_cc.blynk.thumb.jpg.f71f1c10161e3817c453a250996a8049.jpggrafana2.thumb.JPG.763f64dd100e44594aad199f0c8967ce.JPGtelegram.JPG.cb178d769fbee9ebf0a0597c3f75a07c.JPG

You had a productive Lock Down!!!

How can i get this on a raspberry pi

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2 hours ago, Lewis said:

You had a productive Lock Down!!!

How can i get this on a raspberry pi

Note JacquesVDM started the thread by saying it's not for a raspberry pi:

On 2020/04/25 at 2:49 PM, JacquesVDM said:

It does not run on a Pi, but on an ESP8266.

ESP8266 is much cheaper than a Pi, but probably need a bit more skills to get working.

The closest thing to this for a Raspberry Pi is probably solar assistant: https://solar-assistant.io

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  • 1 month later...
On 2021/05/25 at 5:40 PM, Denarius said:

Note JacquesVDM started the thread by saying it's not for a raspberry pi:

ESP8266 is much cheaper than a Pi, but probably need a bit more skills to get working.

The closest thing to this for a Raspberry Pi is probably solar assistant: https://solar-assistant.io

Thank you. I am now running solar assistant. It's brilliant.

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