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# Dallas 18x20 temperature sensor configuration entry
dallas:
- pin: GPIO4 # D2 on a Wemos D1 mini (8266)
update_interval: 60s
- platform: dallas
# index accept any found single Dallas sensor.
# Use address, when you have more than one Dallas sensors hooked up at the same time
index: 0
# address: 0x0123456789ABCDEF
state_class: measurement # keep statisics about the sensor in Home Assistent. Not available in stand stand alone (ESPhome alone)
id: troom_dallas
# on_value enables to use then: and "lambda: |-" to able to write C++ code in the YAML source
# this is the overwrite of the internal sensor with the one connected directly to you intervacel MHI-AC-CTL board and Wemos D1 Mini shield
on_value:
then:
- lambda: |-
float value;
value = id(troom_dallas).state;
ESP_LOGD("mhi_ac_ctrl", " Room temperature sensor value: %f °C", value);
return ((MhiAcCtrl*)id(${deviceid}))->set_room_temperature(value);
# If you still want to have the value being published to the outside
- platform: template
name: ${devicename} Room Temperature
id: "room_temperature"
unit_of_measurement: "°C"
lambda: return id(troom_dallas).state;
The original MHI-AC-Ctrl software and PCB have an option to connect a DS18B20 temperature sensor and use that sensor instead of the internal temperature sensor of the HVAC unit.
(upper left corner of: https://github.com/absalom-muc/MHI-AC-Ctrl/blob/master/images/PCB_top.PNG)
(https://github.com/absalom-muc/MHI-AC-Ctrl/blob/master/SW-Configuration.md#external-temperature-sensor-settings-supporth)
In the MHI-AC-Ctrl-ESPHome version, I couldn't find the option to use a connected DS18B20 temperature sensor.
Is it possible to add this feature to the code?
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