2023-03-02 18:10:40 +01:00
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# ESPHome-modbus-heatpump-Gree-Versati-III
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2023-03-02 18:11:20 +01:00
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**Info:**
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2023-03-02 18:10:40 +01:00
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Tento návod popisuje jak připojit zařízení do Home Assistant přes modbus protokol pomocí ESP a RS485/TTL převodníku.
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V tomto případě jde o připojení tepelného čerpadla Gree Versati III.
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2023-03-02 18:11:20 +01:00
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**Komponenty:**
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2023-03-02 18:10:40 +01:00
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- ESP8266 / ESP32
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- RS485/TTL converter: [SHOP](https://www.laskakit.cz/prevodnik-ttl-na-rs-485--max485/)
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2023-03-02 18:11:20 +01:00
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**ESPHome code**
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2023-03-02 18:10:40 +01:00
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```
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uart:
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id: mod_bus
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tx_pin: GPIO16
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rx_pin: GPIO17
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baud_rate: 9600
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stop_bits: 2
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modbus:
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flow_control_pin: GPIO23
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send_wait_time: 100ms
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id: modbus_versati3
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modbus_controller:
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- id: versati3
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## the Modbus device addr
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address: 0x1
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modbus_id: modbus_versati3
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setup_priority: -10
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update_interval: 15s
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number:
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- platform: modbus_controller
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modbus_controller_id: versati3
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name: "nasi_komora_modbus_tank_target_temp_set"
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address: 13
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unit_of_measurement: "°C"
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value_type: S_WORD
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entity_category: config
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sensor:
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- platform: modbus_controller
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modbus_controller_id: versati3
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name: "nasi_komora_modbus_tank_target_temp"
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address: 13
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unit_of_measurement: "°C"
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register_type: holding
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value_type: U_WORD
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accuracy_decimals: 1
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# filters:
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# - multiply: 0.1
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```
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