Hi to everyone
I have managed to integrate my Phnix fancoil to home assistant via it’s MODbus and ESPHome wirelessly.
You will need
- ESP8266 or ESP32 board (Wemos D1 mini is the one I use here.)
- RS485/TTL converter
- a 120Ω resistor conected in parallel to terminate the modbus side. (my RS485/TTL converter had one onboard).
Basic usage and setup of ESP boards and connections are not included in this post, I suppose that you will get around it from other sources or you already know a few bits.
The reason I am posting it is for others to avoid going through the same as me writing the code.
Keep in mind I am not an expert and there may be better ways, but thats how I did it and it works absolutely perfect.
Make sure to change accordignly:
ESP board type.
Naming of the entitites.
And any other that is personal info like replacing the wifi and SSID with your own wifi’s credentials.
Here is the Code that you need.
esphome:
name: phnix-modbus-controller
friendly_name: phnix-modbus-controller
esp8266:
board: esp01_1m
# Enable logging
logger:
# Enable Home Assistant API
api:
encryption:
key: "**************************************"
ota:
- platform: esphome
id: my_ota
password: "************************"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Phnix-Modbus-Controller"
password: "12345678"
captive_portal:
web_server:
port: 80
uart:
id: mod_bus
tx_pin: GPIO13
rx_pin: GPIO12
baud_rate: 9600
stop_bits: 1
modbus:
send_wait_time: 100ms
id: phnix_fancoil
modbus_controller:
- id: phnix
## the Modbus device addr
address: 15
modbus_id: phnix_fancoil
setup_priority: -10
update_interval: 15s
text_sensor:
- platform: template
id: living_room_fancoil_mode_text
name: "Living Room Fancoil Mode text"
- platform: template
id: living_room_fan_speed_text
name: "Living Room Fan Speed"
number:
- platform: modbus_controller
modbus_controller_id: phnix
name: "Living Room Fancoil On/Off"
address: 28301
register_type: holding
value_type: U_WORD
use_write_multiple: True
entity_category: config
min_value: 0
max_value: 1
step: 1
mode: slider
icon: "mdi:toggle-switch"
- platform: modbus_controller
modbus_controller_id: phnix
name: "Living Room Cool Temperature"
id: living_room_fancoil_cool_temperature
address: 28310
value_type: S_WORD
use_write_multiple: True
entity_category: config
min_value: 16
max_value: 30
step: 1
multiply: 10
mode: slider
- platform: modbus_controller
modbus_controller_id: phnix
name: "Living Room Heat Temperature"
id: living_room_fancoil_heat_temperature
address: 28311
value_type: S_WORD
use_write_multiple: True
entity_category: config
min_value: 16
max_value: 30
step: 1
multiply: 10
mode: slider
- platform: modbus_controller
modbus_controller_id: phnix
name: "Living Room Set Fan Speed"
id: living_room_fancoil_fan_speed
address: 28303
value_type: S_WORD
use_write_multiple: True
entity_category: config
min_value: 2
max_value: 6
step: 1
mode: slider
- platform: modbus_controller
modbus_controller_id: phnix
name: "Living Room Mode Set"
id: living_room_fancoil_mode_set
address: 28302
value_type: S_WORD
use_write_multiple: True
entity_category: config
min_value: 0
max_value: 4
step: 1
mode: slider
sensor:
- platform: modbus_controller
modbus_controller_id: phnix
id: living_room_fancoil_mode
name: Living Room Fancoil Mode
address: 28302
register_type: holding
value_type: U_WORD
#entity_category: config
on_value:
then:
- lambda: |-
int state = id(living_room_fancoil_mode).state;
std::string text;
if (state == 0) {
text = "Auto";
} else if (state == 1) {
text = "Cooling";
} else if (state == 2) {
text = "Dehumidifier";
} else if (state == 3) {
text = "Fan Only";
} else if (state == 4) {
text = "Heating";
} else {
text = "UNKNOWN";
}
id(living_room_fancoil_mode_text).publish_state(text);
- platform: modbus_controller
modbus_controller_id: phnix
id: living_room_fan_speed
name: Living Room Fan Speed
address: 46803
register_type: read
value_type: U_WORD
on_value:
then:
- lambda: |-
int state = id(living_room_fan_speed).state;
std::string text;
if (state == 0) {
text = "Off";
} else if (state == 1) {
text = "Ultra Low";
} else if (state == 2) {
text = "Low";
} else if (state == 3) {
text = "Medium";
} else if (state == 4) {
text = "High";
} else if (state == 5) {
text = "Top Speed";
} else if (state == 6) {
text = "Auto";
} else {
text = "UNKNOWN";
}
id(living_room_fan_speed_text).publish_state(text);
- platform: modbus_controller
modbus_controller_id: phnix
name: "Living Room Fancoil Air Temperature"
address: 46801
unit_of_measurement: "°C"
register_type: read
value_type: S_WORD
accuracy_decimals: 0
filters:
- multiply: 0.1
- platform: modbus_controller
modbus_controller_id: phnix
name: "Living Room Fancoil Coil Temperature"
address: 46802
unit_of_measurement: "°C"
register_type: read
value_type: S_WORD
accuracy_decimals: 0
filters:
- multiply: 0.1
- platform: modbus_controller
modbus_controller_id: phnix
name: "Living Room Fan RPM"
address: 46804
unit_of_measurement: "RPM"
register_type: read
value_type: S_WORD
accuracy_decimals: 0
- platform: wifi_signal
name: "WiFi Signal Sensor"
id: wifi_signal_db
update_interval: 60s
entity_category: "diagnostic"
- platform: copy # Reports the WiFi signal strength in %
source_id: wifi_signal_db
name: "WiFi Signal Percent"
filters:
- lambda: return min(max(2 * (x + 100.0), 0.0), 100.0);
unit_of_measurement: "Signal %"
entity_category: "diagnostic"
switch:
- platform: modbus_controller
modbus_controller_id: phnix
name: "Living Room Fancoil On/Off"
address: 28301
register_type: holding
use_write_multiple: True
icon: "mdi:toggle-switch"
For any questions fell free to reply.
Attached the PHNIX modbus info coming from the main dealer in Greece. (extremely helpful.)
