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Reads values from a growatt solar converter using modbus and outputs to an mqtt broker, build for esp8266(nodemcu)

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no matching function for call to 'SoftwareSerial::SoftwareSerial(int, int, bool, int)'

While I have sketched everything as provided here. I have an error on compiling.

Can you please help out? I think it has to do with:
esp8266/Arduino#6737

Am I correct in thinking as follows:
You said the pins RX and TX needed to be used.
#2

In the code I see:
SoftwareSerial swSer(13, 15, false, 128);

Does this really mean pin RX & TX?

According to:

RX & TX are pin 1 & 3? Or am am totally on the wrong path here?

But I am not so very familiar with arduino.

My error message:

Arduino: 1.8.13 (Windows 10), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, Flash, Legacy (new can return nullptr), All SSL ciphers (most compatible), 4MB (FS:2MB OTA:~1019KB), 2, v2 Lower Memory, Disabled, None, Only Sketch, 115200"

growatt_mqtt:54:40: error: no matching function for call to 'SoftwareSerial::SoftwareSerial(int, int, bool, int)'

 SoftwareSerial swSer(13, 15, false, 128);

                                        ^

C:\Users\sander\Desktop\growatt_mqtt-master\growatt_mqtt\growatt_mqtt.ino:54:40: note: candidates are:

In file included from C:\Users\sander\Desktop\growatt_mqtt-master\growatt_mqtt\growatt_mqtt.ino:8:0:

C:\Users\sander\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\SoftwareSerial\src/SoftwareSerial.h:93:5: note: SoftwareSerial::SoftwareSerial(int8_t, int8_t, bool)

     SoftwareSerial(int8_t rxPin, int8_t txPin = -1, bool invert = false);

     ^

C:\Users\sander\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\SoftwareSerial\src/SoftwareSerial.h:93:5: note:   candidate expects 3 arguments, 4 provided

C:\Users\sander\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\SoftwareSerial\src/SoftwareSerial.h:89:5: note: SoftwareSerial::SoftwareSerial()

     SoftwareSerial();

     ^

C:\Users\sander\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\SoftwareSerial\src/SoftwareSerial.h:89:5: note:   candidate expects 0 arguments, 4 provided

Multiple libraries were found for "SoftwareSerial.h"

 Used: C:\Users\sander\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\SoftwareSerial

 Not used: C:\Users\sander\Documents\Arduino\libraries\EspSoftwareSerial

exit status 1

no matching function for call to 'SoftwareSerial::SoftwareSerial(int, int, bool, int)'



This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Find out what errors mean

Hi,

I just implemented this code on a NodeMCU with RS485-TTL converter attached.

On the other end is a growatt 2000 inverter which I'm trying to read.

However, I cannot seem to get any data out. The code runs on the nodeMCU just fine (with a few tweaks, removing all the non-growatt code for one, see my forked repo for the code I use now).

I do get error codes, sometimes the code is e0, sometimes it's e2.

https://github.com/ardexa/growatt-inverters/blob/master/docs/Growatt%20PV%20Inverter%20Modbus%20RS485%20RTU%20Protocol.pdf
I only have this as documention on the data I'm supposed to get, and I can't find these error codes in here.

Is there something I'm missing or doing wrong?

Hi, can you please elaborate a bit on how to get this running? What to do where and how? I do have mqtt running so that part should be fine. Particularly interested in what to "buy" and how and what to install how and where. Thank you!

Would this be ok:
https://www.amazon.de/dp/B06Y1ZPNMS/ref=cm_sw_r_cp_apa_i_2EkbFbTK25GCP

Script without heating mitsubishi

hello, i have tried to remove the heating states / mitsubihi Registeres out of the code, becauswe i do not nee it...I was not able to do so..Can you helP?

The Sketch works perfect with my growatt....Thank you for this.... I have added a input register
publishFloat("energy/growatt/Temperatur", glueFloat(0, node.getResponseBuffer(32)));

  publishFloat("energy/growatt/Faultcode", glueFloat(0, node.getResponseBuffer(40)));

Temperatur is delivering always 0... Faultcode is working....do you have an idea for that?

Thanks

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