Integration of Viessmann Optolink protocol into ESPHome. I named this component after the cloud reading unit of Viessmann: Vitoconnect.
For usage, simply add the following to your config file. Example: V200WO1. Address, length and post processing can be retrieved from https://github.com/openv/openv/wiki/Adressen. Length of 2 bytes is by default interpreted as int16, 4 bytes as uint32. Both values are then converted to float.
external_components:
- source: github://dannerph/esphome_vitoconnect
esphome:
name: viessmann-reader
friendly_name: vitoconnect
esp32:
board: esp32doit-devkit-v1
# esp8266:
# board: nodemcuv2
uart:
- id: uart_vitoconnect
rx_pin: GPIO16 # ESP32 RX2
tx_pin: GPIO17 # ESP32 TX2
#rx_pin: GPIO03 # ESP8266 RX
#tx_pin: GPIO01 # ESP8266 TX
baud_rate: 4800
data_bits: 8
parity: EVEN
stop_bits: 2
# debug:
# direction: BOTH
# dummy_receiver: false
# after:
# delimiter: [0x06]
# sequence:
# - lambda: UARTDebug::log_hex(direction, bytes, ':');
vitoconnect:
uart_id: uart_vitoconnect
protocol: P300 # set protocol to KW or P300
update_interval: 30s
sensor:
- platform: vitoconnect
name: "Außentemperatur"
address: 0x01C1 # vitoconnect: address of the value
length: 2 # vitoconnect: length of the value
unit_of_measurement: "°C"
accuracy_decimals: 1
filters:
- multiply: 0.1
- platform: vitoconnect
name: "Betriebsstunden Verdichter"
address: 0x0580
length: 4
unit_of_measurement: "h"
accuracy_decimals: 1
filters:
# - multiply: 0.000277777777777778 # use multiply filter for ESP8266
- lambda: return x / 3600.0;
- platform: vitoconnect
name: "Brennerleistung"
address: 0xA38F
length: 1
unit_of_measurement: "%"
accuracy_decimals: 1
filters:
- multiply: 0.5
binary_sensor:
- platform: vitoconnect
name: "Status Verdichter"
address: 0x0400Tested with OptoLink ESP32 adapter from here: https://github.com/openv/openv/wiki/Bauanleitung-ESP32-Adafruit-Feather-Huzzah32-and-Proto-Wing
Built based on VitoWifi by Bert Melis and inspired by vitowifi_esphome by Philipp Hack.
MIT License Copyright (c) 2023 Philipp Danner
