search

damianburrin / WVC-Life-Edition-Data-Collector

A project to get better data analysis from the WVC R3 Life edition inverters.
4 stars 1 forks source link

Replacement of LPT270? #2

Open Syntaxrabbit opened 1 year ago

Syntaxrabbit commented 1 year ago

Hi there, this is not a real bug report. Sorry for that.

I think I don't quite get the correct wiring, but maybe there's something wrong with my converter or my approach. So far, I removed the LPT270 and attached an ESP8266 acting as serial-to-tcp-bridge.

I wonder if that's even possible, as

Do I really have to connect the "china cloud" first before being able to receive the data strings?

Maybe you could help me to get some new insights. This could be a good start to replace the "china cloud" LPT270 completely with ESP8266 and open source software.

damianburrin commented 1 year ago

Which inverter do you have?

From: Syntaxrabbit @.> Sent: Sunday, June 11, 2023 5:28 PM To: damianburrin/WVC-Life-Edition-Data-Collector @.> Cc: Subscribed @.***> Subject: [damianburrin/WVC-Life-Edition-Data-Collector] Replacement of LPT270? (Issue #2)

Hi there, this is not a real bug report. Sorry for that.

I think I don't quite get the correct wiring, but maybe there's something wrong with my converter or my approach. So far, I removed the LPT270 and attached an ESP8266 acting as serial-to-tcp-bridge.

I wonder if that's even possible, as

Do I really have to connect the "china cloud" first before being able to receive the data strings?

Maybe you could help me to get some new insights. This could be a good start to replace the "china cloud" LPT270 completely with ESP8266 and open source software.

- Reply to this email directly, view it on GitHub https://github.com/damianburrin/WVC-Life-Edition-Data-Collector/issues/2 , or unsubscribe https://github.com/notifications/unsubscribe-auth/AEKBERMGDOQKRF74RMPI2E3XK XWHJANCNFSM6AAAAAAZCNZ654 . You are receiving this because you are subscribed to this thread. https://github.com/notifications/beacon/AEKBEROM2PLQBFALINH3UB3XKXWHJA5CNFS M6AAAAAAZCNZ656WGG33NNVSW45C7OR4XAZNFJFZXG5LFVJRW63LNMVXHIX3JMTHGQZOPAY.gif Message ID: @. @.> >

damianburrin commented 1 year ago

Blinking red means power but no MPPT lock so you won't get data I don't think

From: Syntaxrabbit @.> Sent: Sunday, June 11, 2023 5:28 PM To: damianburrin/WVC-Life-Edition-Data-Collector @.> Cc: Subscribed @.***> Subject: [damianburrin/WVC-Life-Edition-Data-Collector] Replacement of LPT270? (Issue #2)

Hi there, this is not a real bug report. Sorry for that.

I think I don't quite get the correct wiring, but maybe there's something wrong with my converter or my approach. So far, I removed the LPT270 and attached an ESP8266 acting as serial-to-tcp-bridge.

I wonder if that's even possible, as

Do I really have to connect the "china cloud" first before being able to receive the data strings?

Maybe you could help me to get some new insights. This could be a good start to replace the "china cloud" LPT270 completely with ESP8266 and open source software.

- Reply to this email directly, view it on GitHub https://github.com/damianburrin/WVC-Life-Edition-Data-Collector/issues/2 , or unsubscribe https://github.com/notifications/unsubscribe-auth/AEKBERMGDOQKRF74RMPI2E3XK XWHJANCNFSM6AAAAAAZCNZ654 . You are receiving this because you are subscribed to this thread. https://github.com/notifications/beacon/AEKBEROM2PLQBFALINH3UB3XKXWHJA5CNFS M6AAAAAAZCNZ656WGG33NNVSW45C7OR4XAZNFJFZXG5LFVJRW63LNMVXHIX3JMTHGQZOPAY.gif Message ID: @. @.> >

Syntaxrabbit commented 1 year ago

Thank you for your replies. It's a 600 R3. I just found out, that there is something like an "ID", but in contrary to most user's device, mine does not have a sticker with something like that. So I have no idea, if I even could send commands to the inverter like the data request, e.g. "F2 FF FF FF FF FF FF 00 00 03 00 FF FF 65". Currently, I try to understand what people are doing here: https://community.openenergymonitor.org/t/wvc-inverter-mqtt-data-logging-for-all-versions-of-inverters/12352 (There seems to be some "modem" device communication on 433MHz, but our inverter has the wifi module. I ask myself, if the communication protocol is the same.)

damianburrin commented 1 year ago

Do I really have to connect the "china cloud" first before being able to receive the data strings?

if its the same inverter as mine then no. The data comes out in plain text format. You do need a blue light on the inverter - the J4 isn't powered if their is no MPPT lock

Syntaxrabbit commented 1 year ago

Thank you, I will try to do some more tests tomorrow with the help from direct sunlight. :-)

damianburrin commented 1 year ago

My understanding from Kaideng is that they all use the same protocol. The excel file in this GIThub from provided by them. There are 433 variants and Wifi variants. I believe that all the wifi ones that transmit to alicloud do so the same way (why would you di it any different) an I susperct the 433 ones just transmit it to the WVC modem over 433 and the modem connects to alicloud.

I'd get yourself an openlog (https://learn.sparkfun.com/tutorials/openlog-hookup-guide/all) and connect this to the TX, 3V and ground - put the wires in the hole and hold them in with the lpt270 you can then log what exactly being pushed out of the inverter. I bet its the data in two bursts about every 30 seconds or so in the clear.

A couple of things to note. Your need to be pushing 22v min from your solar panel (60v if i recall) or you won't get a blue light. Flashing blue is searching, solid blue is locked. When it locks you'll hear a click and a hum as the inverter starts to do its thing.

Once you have a blue light you have mppt lock and the wifi will be powered and you'll be able to log the data. I'm not sending any commands to the inverter, you don't need to, it transmits automatically. I'm just capturing this and either routing to the OPENLOG in my current case just pushing it up to ThingSpeak so it can process the data and create the real time graphs for me