gazzzzton

you must set your own wifi password at this place

Yes you can use the "pongo" example and you must change the corresponding registers numbers

hi, both use modbus protocol but use different registers. a little earlier in the conversation someone provided the smx2 protocol, it helped me to make a glow under node-red and now it communicates very well. personally I use the usb cable directly on my raspberry for communication.

Hi, thank you for your response. I use an rs485/TTL converter. I connect the A and the B to the converter and +3.3v, tx, rx, gnd respectively on the vcc, rx (gpio16), tx (gpio17), gnd terminals of my classic esp32. It's not good ?

Hi Pongo, I try to connect my esp32 with my rs485 TTL converter like the home assistant docs, I programmed the following code, I can see it sending the modbus request but it returns nothing in return. Do you have any idea where it can come from in my esphome code? esphome: name: easun esp32: board: esp32dev framework: type: esp-idf version: latest wifi: ssid: !secret wifi_ssid password: !secret wifi_password ota: logger: api: #mqtt: # broker: !secret mqtt_host # username: !secret mqtt_username # password: !secret mqtt_password # id: mqtt_client uart: id: mod_bus tx_pin: GPIO17 rx_pin: GPIO16 baud_rate: 9600 stop_bits: 1 modbus: id: modbus1 modbus_controller: - id: easun address: "0x01" modbus_id: modbus1 sensor: - platform: modbus_controller modbus_controller_id: easun name: "Battery Capacity of SOC" id: battery_capacity_soc register_type: holding address: 0x0100 unit_of_measurement: "%" value_type: U_WORD - platform: modbus_controller modbus_controller_id: easun name: "tension entree edf" id: tension_entree_edf register_type: holding address: 0x0213 unit_of_measurement: "V" value_type: U_WORD select: - platform: modbus_controller modbus_controller_id: easun id: output_priority name: "Output Priority" address: 0xE204 value_type: U_WORD optionsmap: "SOL": 0 "UTI": 1 "SBU": 2

Would it be possible that you send me your tasmota configuration file that I try to import it on my module when you have the opportunity? I have searched with the links you provided me, I can not get the tcp tx and tcp rx thanks in advance, Alexis

Oh yes indeed I had not understood that the card does the job on its own. So Which version of tasmota are you using? Because I have installed tasmota (english) release in generic version 0 but in the gpio configuration I do not have tcp tx and tcp rx in the list like you. do you have to add a template in configure other to have these functions? thanks for all !

Hi Burleanu, I flashed the module with tasmota but I have trouble configuring the esp afterwards. Are gpio1 and gpio3 used? If yes, what did you put as module configuration? I tried serbrtx in gpio1 and serbrrx in gpio3 without success. Then in the console I send it the following command but no succes: ModBusSend {"deviceaddress": 1, "functioncode": 2, "startaddress": 256, "type":"hex", "count":1}`

Hello, thank you very much, I have just compared with the data that I had already found, it is indeed the correct protocol. I searched for two weeks without finding, congratulations to you !

Hi, good job ! Can you tell us more about the flashing of this original wifi module? I'm intrigued ^^ I took it out of the drawer right away ^^ I myself have an easun smxII 5.6kw inverter but the modbus protocol is not the same as the document above. I am in the process of decoding the reception and sending frames to integrate it into my red node. I will soon see the end of the tunnel!

i had found this link but no at first sight it does not correspond

Hello everyone, in order to integrate my easun smxII inverter into node red in modbus rs485 protocol, I will need the modus rs485 protocol manual for this inverter. Anyone have this available? I found a lot of manuals but none that matches mine. I manage to sniff the data that passes between the inverter and the software provided by easun (ipower-net) but with the protocol manual it would be much simpler. For example, to obtain a data flow equivalent to QPIGS in rs232, I run the command 01 03 02 04 00 1f 44 7b and the inverter responds: 01 03 3E 00 03 00 00 00 00 00 00 00 00 00 03 00 00 00 00 50 0A 01 01 01 0C 16 13 00 00 00 04 00 00 10 31 08 98 00 00 13 88 08 A6 00 00 13 88 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 01 00 00 00 00 00 00 01 33 01 56 01 f4 I managed to guess some data but not all... Thanks in advance everyone