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esphome-configs/mcu-heater.yaml
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randy bb76912023 Set framework.advanced.flash_chip on ESP32 devices to save IRAM 
Values come from ESPHome's own hint in the log of each online device
("Set flash_chip: ... to save IRAM"). Devices that were off got the value of
an identical board (ESP32-PICO-D4 ATOM/Stamp Pico: gd, JC3248W535: generic,
POW Elite: gd), marked as not read from the device.
2026-09-30 11:57:30 +02:00

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---
# Hardware: M5Stack ATOM Lite + ATOM Hub Switch
# Pinout:
# GPIO1 UART0 TX
# GPIO3 UART0 RX
# GPIO12 IR
# GPIO19 NC -> Demand [heating_demand] (switch gpio)
# GPIO21 I2C1 SCL -> i2c (i2c scl)
# GPIO22 1-WIRE -> Demand [hot_water_demand] (switch gpio)
# GPIO23 UART1 RX -> uart_modbus (uart rx_pin)
# GPIO25 I2C1 SDA -> i2c (i2c sda)
# GPIO26 I2C0 SDA
# GPIO27 NEO -> atom_led (status LED, common/status_led_atom.yaml)
# GPIO32 I2C0 SCL
# GPIO33 UART1 TX -> uart_modbus (uart tx_pin)
# GPIO39 BUTTON
# I2C:
# 0x18 one_wire_bus (one_wire ds2482)
# 0x27 pca9554_module (pca9554)
substitutions:
device: heater
name: Heater
area: Basement
comment: Hot water and Heating control
esphome:
name: mcu-${device}
friendly_name: ${name}
area: ${area}
comment: ${comment}
areas:
- id: local_area
name: ${area}
devices:
- id: heating
name: Heating
area_id: local_area
- id: hot_water
name: Hot Water
area_id: local_area
esp32:
variant: esp32
toolchain: esp-idf
framework:
advanced:
flash_chip: gd
type: esp-idf
external_components:
# - source: github://pr#12717
# components: [ds248x]
# refresh: 1h
- source: github://pr#13534
components: [ds2482, ds2484, ds248x_base]
refresh: 1h
packages:
common: !include common/common.yaml
ipv6_only: !include common/ipv6_only.yaml
status_led: !include common/status_led_atom.yaml
#logger:
# level: VERBOSE
# logs:
# dallas.component: ERROR
# uart.component: ERROR
# i2c.component: VERBOSE
# Heating / Hot water Controller
# temp_1: Solar Collector
# temp_2: Cylinder Bottom (solar)
# temp_3: Cylinder Top (heater)
# temp_4: Heating OUT
# temp_5: Heating IN
# relay_1: Solar Pump
# relay_2: Hot Water Heating Demand
# relay_3: Heating Demand
# input_1: Off Peak Status
# input_2: Heating Thermostat Demand Overrride
# temp_1_delta: delta temperature (= temp_2 - temp_1)
# temp_2_set: requested temp_2
# temp_3_set: requested temp_3
# temp_3_delta: delta for temp_3
#
## RULES
## - Hot Water Solar
# if ((temp_1 - temp_1_delta) < temp_2_set) && ((temp_2 - temp_1) > temp_1_delta) then relay_1 ON <<< WTF?
# if (temp_2 > temp_2_set) || ((temp_1_delta / 2) > (temp_2 - temp_1)) then relay_1 OFF
# The controller running this mode compares four values: source temperature at sensor A (Ta), sink temperature at sensor B (Tb), target point (Tstop) temperature and minimal starting (Tstart) temperature as follows.
# The controller will switch relay output on, and will show Î (black triangle up) next to relay output status, when all the following three conditions are satisfied:
# •source temperature TA is greater or equal minimal starting Tst ar t temperature,
# • sink temperature TB is less that target Tstop temperature, and
# •the difference between source temperature Ta and sink temperature Tb , i.e. Ta − Tb , is above or equal to ∆ON degrees.
# When the difference Ta − Tb falls below or is equal to ∆OFF degrees (the last criterion is not satisfied), the controller displays È (black triangle down) and switches relay output off.
# Furthermore, if temperature Tb reaches target point temperature, i.e. Tb ≥ Tstop , then the controller displays Tm and the relay switches off. When temperature Tb falls below Tstop for 42 degrees, status of output relay depends on temperature Ta as described in this paragraph.
# When the starting temperature has not been reached, the controller displays a negative value, i.e. the difference Tstart − Ta, that is the difference between source and starting temperature.
# Note, that relay response might be delayed due to relay delay protection.
# Turn on ∆ON and turn off ∆OFF difference Values of ∆ON and ∆OFF are derived from 41 and 42 as minimum and maximum. For instance, if 41 < 42, then ∆OFF = 41 and ∆ON = 42. When 41 = 42, then 41 and 42 are adapted, eg. 41 lowers for 0.5 degrees and 42 increases for 0.5 degrees.
# Solar thermocouplers KTY83 https://www.nxp.com/docs/en/data-sheet/KTY83_SER.pdf / regultor by https://www.duel-ltd.sk
# 1303 kOhm -> 57.9 C
#
## - Hot Water Heater / Heating
# set desired temperature - Day / Night + Schedule for normall day and weekend
# real room temperature - based on one of rooms, or based on coldest room
# very simple - if temp lower, start heater / hot water demand
globals:
- id: temp_1 # Heating
type: float
restore_value: no
initial_value: '12.0'
- id: set_hot_water_solar_delta # Solar Collector
type: float
restore_value: no
initial_value: '10.0'
- id: set_hot_water_solar_temperature # Cylinder Bottom (solar)
type: float
restore_value: no
initial_value: '70.0'
- id: set_hot_water_heating_temperature_min # Cylinder Top (heater)
type: float
restore_value: no
initial_value: '40.0'
- id: set_hot_water_heating_temperature_max # Cylinder Top (heater)
type: float
restore_value: no
initial_value: '50.0'
- id: set_heating_temperature_min # Heating
type: float
restore_value: no
initial_value: '19.0'
- id: set_heating_temperature_max # Heating
type: float
restore_value: no
initial_value: '20.5'
time:
- id: !extend ha_time
on_time:
- seconds: 0
minutes: /1
# hours: 5-23
# days_of_week: MON-FRI
then:
lambda: |-
if (id(hot_water_heater).state >= 67.0) {
id(hot_water_demand).turn_off();
}
climate:
- platform: bang_bang
sensor: hot_water_heater
name: ""
id: hot_water_climate
device_id: hot_water
visual:
min_temperature: 40
max_temperature: 65
temperature_step: 1
# temperature_step: 0.1 °C
default_target_temperature_low: 48 °C
default_target_temperature_high: 56 °C
heat_action:
- switch.turn_on: hot_water_demand
idle_action:
- switch.turn_off: hot_water_demand
away_config:
default_target_temperature_low: 30 °C
default_target_temperature_high: 40 °C
i2c:
# - id: i2c0
# sda: 26
# scl: 32
# scan: true #false
# - id: i2c1
sda: 25
scl: 21
scan: true #false
# one_wire:
# id: one_wire_bus
# # i2c_id: i2c_main
# platform: ds2484
# active_pullup: true
# ds248x:
# id: ds2484_module
# address: 0x18
# active_pullup: true
# one_wire:
# - platform: ds248x
# ds248x_id: ds2484_module
# id: one_wire_bus
one_wire:
id: one_wire_bus
# i2c_id: i2c_main
platform: ds2482
active_pullup: true
modbus:
uart_id: uart_modbus
uart:
- id: uart_modbus
rx_pin: 23
tx_pin: 33
baud_rate: 9600
stop_bits: 2
# debug:
pca9554:
- id: pca9554_module
address: 0x27
switch:
- platform: template
name: Heating Enabled
id: heating_enabled
device_id: heating
optimistic: True
- platform: gpio
name: Demand # Hot Water Heating Demand (to Heater)
id: hot_water_demand
device_id: hot_water
pin: 22
inverted: true
- platform: gpio
name: Demand # Heating Demand (to Heater)
id: heating_demand
device_id: heating
pin: 19
inverted: true
- platform: gpio
name: Power Level II
id: heating_power_level_2
pin:
pca9554: pca9554_module
number: 4
- platform: gpio
name: Power Level III
id: heating_power_level_3
pin:
pca9554: pca9554_module
number: 5
# - platform: uart
# name: Total Heater Power Reset
# uart_id:
# id: reset_total_heater_power
# data: [0x01, 0x42, 0x80, 0x11]
sensor:
# - platform: ds248x
- platform: dallas_temp
# [22:06:25][D][dallas.sensor:082]: 0x1701143E35C5AA28 Feed
# [22:06:25][D][dallas.sensor:082]: 0x7301143F7F57AA28 Return
# [22:06:25][D][dallas.sensor:082]: 0xF701143E397FAA28 Heater Tank
# [22:06:25][D][dallas.sensor:082]: 0x5A041750B2C8FF28 Hot Water Tank - Bottom (Solar)
# [22:06:25][D][dallas.sensor:082]: 0xDB041750EAE2FF28 Heating Water Return (OUT from System, TO Heater)
# [22:06:25][D][dallas.sensor:082]: 0xB2041750CF1AFF28 Heating Water (OUT from Heater, TO System)
# [22:06:25][D][dallas.sensor:082]: 0x960417517301FF28 Hot Water Tank - TOP (Heater)
# address: 0x320417500A93FF28 # 1. broken
# address: 0x67041750F44CFF28 # 2. broken
address: 0x960417517301FF28 # Hot Water Tank - TOP (Heater)
name: Heater
id: hot_water_heater
device_id: hot_water
# - platform: ds248x
- platform: dallas_temp
address: 0x5A041750B2C8FF28 # Hot Water Tank - Bottom (Solar)
name: Solar
id: hot_water_solar
device_id: hot_water
# - platform: ds248x
- platform: dallas_temp
address: 0xF701143E397FAA28 # Heater Tank
name: Temperature
id: heater
# - platform: ds248x
- platform: dallas_temp
address: 0x1701143E35C5AA28 # Heating Water Feed (OUT from Heater, TO System)
name: OUT2
id: heating_out
device_id: heating
# - platform: ds248x
- platform: dallas_temp
address: 0x7301143F7F57AA28 # Heating Water Return (OUT from System, TO Heater)
name: IN2
id: heating_in
device_id: heating
# - platform: template
# name: Total Daily Energy
# id: heater_daily_energy
# lambda: |-
# return (id(heater_l1_total_daily_energy).state + id(heater_l3_total_daily_energy).state + id(heater_l3_total_daily_energy).state);
update_interval: 60s
- platform: template
name: Daily Energy Price
id: heater_energy_price
unit_of_measurement: '€'
lambda: |-
//# platba za odberne miesto 0,75 1,1
//# pevna mesacna zlozka tarify 0,15080000 0,1508 * 75 A
//## platba za systemove sluzby 0,00629760
//# platba za prevadzku systemu 0,01590000
//# variabilna zlozka tarify za distribuciu 0,00398400
//# platba za straty elktr.sidtr.el. 0,01146600
//# odvod do jadroveho fondu 0,00327000
//#
//# cena za elektrinu VT 0,06390000 0,10380000
//# cena za elektrinu NT 0,04110000 0,06900000
//# 0.00594340+0.02598800+0.00279200+0.00687300+0.00327000+0.04110000 = 0.0859664
//# prenos mesacne = 0,15080000*75
//# prenos spotreba * (0,00398400+0,01146600+0,00327000+0,00629760+0,01590000) = spotreba * 0,0409176
// # 1,1 + (VT * 0,1038) + (NT * 0,069) + (75 * 0,1508) + ((VT+NT) * (0,00398400+0,01146600+0,00327000+0,00629760+0,01590000))
return (id(heater_total_daily_energy).state * (0.0409176 + 0.069));
# L1
- platform: pzemac
#address: 161
current:
name: L1 Current
voltage:
name: L1 Voltage
energy:
name: L1 Energy
id: heater_l1_energy
power:
name: L1 Power
id: heater_l1_power
frequency:
name: L1 Frequency
power_factor:
name: L1 Power Factor
update_interval: 20s
- platform: total_daily_energy
name: L1 Total Daily Energy
power_id: heater_l1_power
id: heater_l1_total_daily_energy
filters:
- multiply: 0.001
unit_of_measurement: kWh
icon: mdi:counter
- platform: integration
name: L1 Energy Meter"
sensor: heater_l1_power
time_unit: h
filters:
- lambda: return x * (0.001) + 2282;
unit_of_measurement: kWh
icon: mdi:counter
# L2
- platform: pzemac
address: 162
current:
name: L2 Current
voltage:
name: L2 Voltage
energy:
name: L2 Energy
id: heater_l2_energy
power:
name: L2 Power
id: heater_l2_power
frequency:
name: L2 Frequency
power_factor:
name: L2 Power Factor
update_interval: 20s
- platform: total_daily_energy
name: L2 Total Daily Energy
id: heater_l2_total_daily_energy
power_id: heater_l2_power
filters:
- multiply: 0.001
unit_of_measurement: kWh
icon: mdi:counter
- platform: integration
name: L2 Energy Meter
sensor: heater_l2_power
time_unit: h
filters:
- lambda: return x * (0.001) + 2282;
unit_of_measurement: kWh
icon: mdi:counter
# L3
- platform: pzemac
address: 163
current:
name: L3 Current
voltage:
name: L3 Voltage
energy:
name: L3 Energy
id: heater_l3_energy
power:
name: L3 Power
id: heater_l3_power
frequency:
name: L3 Frequency
power_factor:
name: L3 Power Factor
update_interval: 20s
- platform: total_daily_energy
name: L3 Total Daily Energy
power_id: heater_l3_power
id: heater_l3_total_daily_energy
filters:
- multiply: 0.001
unit_of_measurement: kWh
icon: mdi:counter
- platform: integration
name: L3 Energy Meter
sensor: heater_l3_power
time_unit: h
filters:
- lambda: return x * (0.001) + 2282;
unit_of_measurement: kWh
icon: mdi:counter
# TOTAL: L1+L2+L3
- platform: template
name: Power
id: total_heater_power
device_class: power
state_class: measurement
unit_of_measurement: W
accuracy_decimals: 1
lambda: |-
return id(heater_l1_power).state + id(heater_l2_power).state + id(heater_l3_power).state ;
- platform: template
name: Total Daily Energy
id: heater_total_daily_energy
icon: mdi:counter
device_class: energy
# state_class: measurement
state_class: total_increasing
unit_of_measurement: kWh
accuracy_decimals: 1
lambda: |-
return id(heater_l1_total_daily_energy).state + id(heater_l2_total_daily_energy).state + id(heater_l3_total_daily_energy).state ;
- platform: template
name: Energy
icon: mdi:counter
device_class: energy
state_class: total_increasing
unit_of_measurement: kWh
accuracy_decimals: 1
filters:
- multiply: 0.001
lambda: |-
return id(heater_l1_energy).state + id(heater_l2_energy).state + id(heater_l3_energy).state ;
binary_sensor:
- platform: gpio
name: Off Peak # Off Peak (HDO)
id: off_peak_status
pin:
pca9554: pca9554_module
number: 0
filters:
- delayed_on: 300ms
- delayed_off: 300ms
- platform: gpio
name: "ON" # Heater ON
id: heater_on
pin:
pca9554: pca9554_module
number: 1
filters:
- delayed_on: 300ms
- delayed_off: 300ms
- platform: gpio
name: Error
id: heating_error
pin:
pca9554: pca9554_module
number: 2
filters:
- delayed_on: 300ms
- delayed_off: 300ms
- platform: template
id: heater_alarm
name: Alarm
lambda: |-
if (id(off_peak_status).state && (id(heating_demand).state || id(heating_power_level_2).state) && !id(heater_on).state) {
return true;
} else {
return false;
}
- platform: homeassistant
id: trv_heating_demand
entity_id: binary_sensor.trv_heating_demand
device_id: heating
- platform: homeassistant
id: heating_fireplace_fire
entity_id: binary_sensor.heating_fireplace_fire
device_id: heating
- platform: template
id: request_heating_demand
name: Request Demand
device_id: heating
lambda: |-
if (id(trv_heating_demand).state && id(heating_enabled).state && !id(heating_fireplace_fire).state) {
return true;
} else {
return false;
}
on_press:
then:
- switch.turn_on: heating_demand
on_release:
then:
- switch.turn_off: heating_demand
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