Recently purchased a Kincony KC868-A2 esp32 and have been developing the yaml code to run a climate controller.
I connected an SHT40 and AHT20 temperature sensors via the I2C interface. Everything was looking great, until I went into the logs and found below.
INFO ESPHome 2024.3.2
INFO Reading configuration /config/esphome/esp-a2-studio-climate.yaml...
INFO Starting log output from <REDACTED> using esphome API
INFO Successfully connected to esp-a2-studio-climate @ <REDACTED> in 0.002s
INFO Successful handshake with esp-a2-studio-climate @ <REDACTED> in 0.149s
[10:28:47][I][app:102]: ESPHome version 2024.3.2 compiled on Apr 14 2024, 11:10:09
[10:28:47][C][logger:166]: Logger:
[10:28:47][C][logger:167]: Level: DEBUG
[10:28:47][C][logger:169]: Log Baud Rate: 115200
[10:28:47][C][logger:170]: Hardware UART: UART0
[10:28:47][C][i2c.arduino:059]: I2C Bus:
[10:28:47][C][i2c.arduino:060]: SDA Pin: GPIO4
[10:28:47][C][i2c.arduino:061]: SCL Pin: GPIO16
[10:28:47][C][i2c.arduino:062]: Frequency: 50000 Hz
[10:28:47][C][i2c.arduino:065]: Recovery: bus successfully recovered
[10:28:47][I][i2c.arduino:075]: Results from i2c bus scan:
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x08
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x09
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x0A
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x0B
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x0C
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x0D
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x0E
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x0F
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x10
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x11
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x12
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x13
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x14
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x15
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x16
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x17
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x18
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x19
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x1A
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x1B
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x1C
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x1D
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x1E
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x1F
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x20
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x21
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x22
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x23
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x24
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x25
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x26
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x27
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x28
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x29
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x2A
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x2B
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x2C
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x2D
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x2E
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x2F
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x30
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x31
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x32
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x33
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x34
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x35
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x36
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x37
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x38
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x39
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x3A
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x3B
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x3C
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x3D
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x3E
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x3F
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x40
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x41
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x42
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x43
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x44
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x45
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x46
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x47
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x48
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x49
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x4A
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x4B
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x4C
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x4D
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x4E
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x4F
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x50
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x51
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x52
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x53
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x54
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x55
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x56
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x57
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x58
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x59
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x5A
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x5B
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x5C
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x5D
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x5E
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x5F
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x60
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x61
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x62
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x63
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x64
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x65
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x66
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x67
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x68
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x69
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x6A
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x6B
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x6C
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x6D
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x6E
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x6F
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x70
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x71
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x72
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x73
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x74
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x75
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x76
[10:28:47][E][i2c.arduino:083]: Unknown error at address 0x77
When I find the above issues I restart the KC868-A2 and everything is ok for about 24 hours. After that I often see the error above?
The sensor wiring is nothing spectacular… just some short wires from the KC868-A2 I2C port and the two sensors connected. I have also replaced the entire wiring 3 times, so am confident my wiring is not at fault. Not sure if I2C requires shielded cable?
Here’s my yaml code…
esphome:
name: esp-a2-studio-climate
platform: esp32
board: esp32dev
on_boot:
- delay: 2s
- climate.control:
id: daikin_ac
mode: 'off'
- logger.log: "Telling Air Conditioner to STOP"
# Enable logging
logger:
# Enable Home Assistant API
api:
encryption:
key: "<REDACTED>"
ota:
password: "<REDACTED>"
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO17_OUT
phy_addr: 0
# Optional manual IP
manual_ip:
static_ip: <REDACTED>
gateway: <REDACTED>
subnet: 255.255.255.0
# MQTT Interface
mqtt:
broker: !secret mqtt_broker_new
username: !secret mqtt_login
password: !secret mqtt_passwd
port: 1883
reboot_timeout: 0s
keepalive: 60s
discovery: false
i2c:
- id: bus_a
sda: 4
scl: 16
scan: true
dallas:
- pin: GPIO33
update_interval: 30s
# IR TRansmitter entry
remote_transmitter:
pin:
number: 14
id: infrared_transmit
carrier_duty_percent: 50%
sensor:
- platform: dallas
address: 0x2d02131b3fdeaa28
name: 'Test Outside Temperature'
id: studio_dallas_out_temp
resolution: 12
filters:
- sliding_window_moving_average:
window_size: 10
send_every: 3
- platform: aht10
variant: AHT20
address: 0x38
update_interval: 30s
temperature:
name: "AHT20 temp"
id: studio_aht20_in_temp
accuracy_decimals: 1
humidity:
name: "AHT20 humidity"
id: studio_aht20_in_humidity
accuracy_decimals: 1
- platform: sht4x
address: 0x44
update_interval: 30s
temperature:
name: "SHT40 Outside Temperature"
id: studio_sht40_out_temp
accuracy_decimals: 1
humidity:
name: "SHT40 Outside Humidity"
id: studio_sht40_out_humidity
accuracy_decimals: 1
#Relay switches
switch:
- platform: template
id: do_cooling
optimistic: true
- platform: gpio
pin:
number: 15
ignore_strapping_warning: true
inverted: false
id: studio_damper_rly
name: "Studio Damper Relay"
restore_mode: RESTORE_DEFAULT_OFF
- platform: gpio
pin:
number: 2
ignore_strapping_warning: true
inverted: false
id: studio_fan_rly
name: "Studio Fan Relay"
restore_mode: RESTORE_DEFAULT_OFF
binary_sensor:
- platform: template
id: damper
lambda: return (id(studio_sht40_out_temp).state < 18) && (id(studio_aht20_in_temp).state <= 24);
on_press:
- logger.log: "Telling Damper to OPEN"
- switch.turn_on: studio_damper_rly
- mqtt.publish:
# remove test once confirmed working
topic: test_HomeAssistant/Studio/Damper/Status
payload: "OPEN"
on_release:
- logger.log: "Telling Damper to CLOSE"
- switch.turn_off: studio_damper_rly
- mqtt.publish:
# remove test once confirmed working
topic: test_HomeAssistant/Studio/Damper/Status
payload: "CLOSED"
- platform: copy
id: damper_open
source_id: damper
filters:
- delayed_on: 4sec
- platform: template
id: fan
lambda: return id(do_cooling).state && id(damper_open).state;
on_press:
- logger.log: "Telling Fan to START"
- switch.turn_on: studio_fan_rly
- mqtt.publish:
# remove test once confirmed working
topic: test_HomeAssistant/Studio/Fan/Status
payload: "OFF"
on_release:
- logger.log: "Telling Fan to STOP"
- switch.turn_off: studio_fan_rly
- mqtt.publish:
# remove test once confirmed working
topic: test_HomeAssistant/Studio/Fan/Status
payload: "OFF"
- platform: template
id: ac
lambda: "return (id(do_cooling).state && !id(damper).state);"
on_press:
- logger.log: "Telling Air Conditioner to START"
- climate.control:
id: daikin_ac
mode: 'cool'
fan_mode: AUTO
target_temperature: 23 °C
on_release:
- logger.log: "Telling Air Conditioner to STOP"
- climate.control:
id: daikin_ac
mode: 'off'
# Studio Climate Control
climate:
- platform: daikin
name: "Daikin Aircon"
id: daikin_ac
supports_heat: false
transmitter_id: infrared_transmit
- platform: thermostat
name: "Fan Climate Control"
sensor: studio_aht20_in_temp
min_cooling_off_time: 120s
min_cooling_run_time: 120s
min_idle_time: 30s
id: fan_climate_control
cool_action:
- switch.turn_on: do_cooling
- logger.log: "The studio fan is ON"
idle_action:
- switch.turn_off: do_cooling
- logger.log: "The studio fan is OFF"
default_preset: Studio
preset:
- name: Studio
default_target_temperature_high: 22 °C
mode: COOL
Any suggestions appreciated. I will also reach out to the Kincony forum to see if there’s something I am missing?
