added esphome config file

modbus2ha.yaml

@@ -0,0 +1,112 @@
+esphome:
+  name: your-device-name
+  friendly_name: your-device-name
+
+substitutions:
+  tx_pin: GPIO17
+  rx_pin: GPIO16
+
+esp32:
+  board: esp32dev
+  framework:
+    type: arduino
+
+# Enable logging
+logger:
+
+# Enable Home Assistant API
+api:
+  encryption:
+    key: "YOUR-HA-API-KEY"
+
+ota:
+  password: "YOUR-OTA-KEY"
+
+wifi:
+  ssid: !secret wifi_ssid
+  password: !secret wifi_password
+
+  # I have to use static IPs, your setup might be different
+  manual_ip:
+    # Set this to the IP of the ESP
+    static_ip: 192.168.10.10
+    # Set this to the IP address of the router. Often ends with .1
+    gateway: 192.168.10.1
+    # The subnet of the network. 255.255.255.0 works for most home networks.
+    subnet: 255.255.255.0
+    dns1: 192.168.10.1
+  # Enable fallback hotspot (captive portal) in case wifi connection fails
+  ap:
+    ssid: "FALLBACK-AP"
+    password: "secretfallbackpassword"
+
+web_server:
+  port: 80
+
+# If you use Home Assistant please remove this `mqtt` section and uncomment the `api` component!
+# The native API has many advantages over MQTT: https://esphome.io/components/api.html#advantages-over-mqtt
+mqtt:
+  broker: !secret mqtt_host
+#  username: !secret mqtt_username
+#  password: !secret mqtt_password
+  id: mqtt_client
+
+
+uart:
+  id: uart_1
+  baud_rate: 9600
+  tx_pin: ${tx_pin}
+  rx_pin: ${rx_pin}
+  stop_bits: 1
+  parity: NONE
+  # The increased RX buffer size is important because
+  # the full BMS response must fit into the buffer
+  rx_buffer_size: 384
+#  debug:
+#    dummy_receiver: false
+#    direction: BOTH
+#    after:
+#      delimiter: "\r"
+#    sequence:
+#      - lambda: UARTDebug::log_string(direction, bytes);
+
+
+# Further reading: https://esphome.io/components/modbus
+
+modbus:
+#  flow_control_pin: 5
+#  send_wait_time: 500ms 
+  id: modbus1
+  uart_id: uart_1
+
+# Further reading: https://esphome.io/components/modbus_controller
+
+modbus_controller:
+- id: modbus_device
+  address: 0x01   ## address of the Modbus slave device on the bus
+  modbus_id: modbus1
+  update_interval: 10s
+  setup_priority: -10
+
+# Now the real works starts
+# Here you have to define your registers including type
+# Addresses are device specific, so you have to figure out them based on your
+# modbus device. Also the type must be correct. See below link about value_types, etc.
+#
+# Further reading: https://esphome.io/components/sensor/modbus_controller
+
+sensor:
+- platform: modbus_controller
+  modbus_controller_id: modbus_device
+  name: "Current Power"
+  register_type: read
+  address: 0x003A
+  unit_of_measurement: "W"
+  value_type: U_WORD
+- platform: modbus_controller
+  modbus_controller_id: modbus_device
+  name: "Current Energy"
+  register_type: read
+  address: 0x003C
+  unit_of_measurement: "Wh"
+  value_type: U_WORD