The Micronova component is now part of ESPHome. This repo is still valid and is the first place where new features and bugfixes show up. Full ESPHome documentation: https://esphome.io/components/micronova
You have to build a simple circuit to interface with your stove see documentation preview for the details. You can also order a board from @philibertc, that should make it dead easy.
The hardest part is to configure the correct IO pins for the UART and the enable_rx. Users have reported that when you got the interface board from @philibertc, then the pin-config below should work:
uart:
tx_pin: D4
rx_pin: D3
baud_rate: 1200
stop_bits: 2
micronova:
enable_rx_pin: D2
serial_reply_delay: 100msA generic example below. All buttons, sensors, text_sensors, switch and numbers accept a memory_location and memory_address. Specify those if the defaults don't work for you.
uart:
tx_pin: 5
rx_pin: 4
baud_rate: 1200
stop_bits: 2
external_components:
- source: github://Jorre05/micronova
components: [ micronova ]
micronova:
enable_rx_pin: 7
update_interval: 20s
serial_reply_delay: 100ms
text_sensor:
- platform: micronova
stove_state:
name: Stove status
number:
- platform: micronova
thermostat_temperature:
name: Thermostat temperature
step: 1
power_level:
name: Power level
max_value: 4
sensor:
- platform: micronova
room_temperature:
name: Room temperature
fumes_temperature:
name: Fumes temperature
stove_power:
name: Stove power level
fan_speed:
fan_rpm_offset: 240
name: Fan RPM
water_temperature:
name: Water temperature
water_pressure:
name: Water pressure
memory_address_sensor:
memory_location: 0x20
memory_address: 0x7d
name: Custom Adres sensor
switch:
- platform: micronova
stove:
name: Stove on/off switch
button:
- platform: micronova
custom_button:
name: Custom button
memory_location: 0x20
memory_address: 0x7d
memory_data: 0x08
I'm working on a climate component for the Mirconova platform, in the future this may no longer be necessary
You can configure a climate component that links, back and forth, to the Micronova component. The example below will synchronize the thermostat setpoint and switch the stove on and off. Also when you change the thermostat setting on the stove or via the number component, that value will link back to the climate component. The same goes voor the stove switch state.
The if-conditions in the Lambda are there to make sure not to create an endless loop.
This climate component looks just like any other climate control in Home Assistant.
...
sensor:
- platform: micronova
room_temperature:
name: Micronova Room Temperature
id: micronova_room_temperature
...
number:
- platform: micronova
thermostat_temperature:
name: Micronova Thermostat
id: micronova_thermostat
step: 1
on_value:
then:
- lambda: |-
if ( id(ha_thermostat).target_temperature != id(micronova_thermostat).state ) {
auto call = id(ha_thermostat).make_call();
call.set_target_temperature(id(micronova_thermostat).state);
call.perform();
}
...
switch:
- platform: micronova
stove:
name: Stove on/off
id: stove_switch
on_turn_on:
- lambda: |-
if ( id(ha_thermostat).mode != CLIMATE_MODE_HEAT ) {
auto call = id(ha_thermostat).make_call();
call.set_mode("HEAT");
call.perform();
}
on_turn_off:
- lambda: |-
if ( id(ha_thermostat).mode != CLIMATE_MODE_OFF ) {
auto call = id(ha_thermostat).make_call();
call.set_mode("OFF");
call.perform();
}
...
climate:
- platform: thermostat
name: HA thermostaat
id: ha_thermostat
sensor: micronova_room_temperature
min_idle_time: 0s
min_heating_off_time: 0s
min_heating_run_time: 0s
default_preset: Startup preset
on_boot_restore_from: default
preset:
- name: Startup preset
default_target_temperature_low: 22
visual:
min_temperature: 0 °C
max_temperature: 40 °C
temperature_step:
target_temperature: 1
current_temperature: 0.5
idle_action:
- lambda: |-
ESP_LOGD("main","Bogus idle action");
heat_action:
- lambda: |-
ESP_LOGD("main","Bogus heat action");
heat_mode:
- lambda: |-
if ( ! id(stove_switch).state ) {
id(stove_switch).turn_on();
}
off_mode:
- lambda: |-
if ( id(stove_switch).state ) {
id(stove_switch).turn_off();
}
target_temperature_change_action:
- lambda: |-
if ( id(ha_thermostat).target_temperature != id(micronova_thermostat).state ) {
auto call = id(micronova_thermostat).make_call();
call.set_value(id(ha_thermostat).target_temperature);
call.perform();
}
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