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Zbyněk Pecina 2023-03-02 18:32:16 +01:00 committed by GitHub
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@ -11,6 +11,8 @@ In this case it is about connecting a Gree Versati III 10kw heat pump.
- use only shielded cable, otherwise the error "Modbus CRC Check Failed!" may appear in the log.
- put a 120 ohm resistor after the last connected device
- modbus datasheet: [Gree Versati III]([https://www.laskakit.cz/prevodnik-ttl-na-rs-485--max485/](https://github.com/peca2345/ESPHome-modbus-heatpump-Gree-Versati-III/blob/main/modbus-versati-iii-en.pdf)
- you have to find out what the heatpump address is - default is 0x1
- you also need to find out the serial port speed - default 9600
## Components:
- ESP8266 / ESP32