########################################################################################## ########################################################################################## # MAIN BATHROOM FAN/HEAT COMBO SWITCH # V1.1 2025-08-26 Minor Changes (MQTT) # V1.0 2025-06-01 Initial Version ########################################################################################## # Zemismart KS-811 Triple push button # pinout/schematic https://community.home-assistant.io/t/zemismart-ks-811-working-with-esphome/ # # NOTES # - # ########################################################################################## ########################################################################################## ########################################################################################## # SPECIFIC DEVICE VARIABLE SUBSTITUTIONS # If NOT using a secrets file, just replace these with the passwords etc (in quotes) ########################################################################################## substitutions: # Device Naming device_name: "esp-mainbathfancombo" friendly_name: "Main Bathroom Fan-Heat Combo Switch (2)" description_comment: "Main Bathroom Fan/Heat Switch using a Zemismart KS-811 Double Push Button. Extract Fan (1), IR heater (2)" device_area: "Laundry" # Allows ESP device to be automatically linked to an 'Area' in Home Assistant. # Project Naming project_name: "Zemismart Technologies.KS-811-2 (Double)" # Project Details project_version: "v1.1" # Project V denotes release of yaml file, allowing checking of deployed vs latest version entity_prefix: "Main Bathroom" # Simple device name where we want to prefix a sensor or switch, eg "Load" Current. # Passwords api_key: !secret esp-api_key # unfortunately you can't use substitutions inside secrets names ota_pass: !secret esp-ota_pass # unfortunately you can't use substitutions inside secrets names static_ip_address: !secret esp-mainbathfancombo_ip mqtt_command_main_topic: !secret mqtt_command_main_topic #mqtt_status_main_topic: !secret mqtt_status_main_topic # Device Settings #relay_icon: "mdi:heating-coil" log_level: "INFO" # Define logging level: NONE, ERROR, WARN, INFO, DEBUG (Default), VERBOSE, VERY_VERBOSE update_interval: "60s" # update time for for general sensors etc # MQTT REMOTE Controls mqtt_remote_device1_name: "masterbath-towelrail" mqtt_remote_device1_command_topic: "${mqtt_command_main_topic}/${mqtt_remote_device1_name}/operation" mqtt_remote_device1_command1: "BOOST" ########################################################################################## # PACKAGES: Included Common Packages # https://esphome.io/components/packages.html ########################################################################################## packages: #### WIFI, Network (Static/DHCP/IPV6 etc), Fallback AP, Safemode #### common_wifi: !include file: common/network_common.yaml vars: local_device_name: "${device_name}" local_static_ip_address: "${static_ip_address}" local_ota_pass: "${ota_pass}" #### HOME ASSISTANT API (choose encryption or no encryption options) #### common_api: !include file: common/api_common.yaml #file: common/api_common_noencryption.yaml vars: local_api_key: "${api_key}" #### MQTT #### common_mqtt: !include file: common/mqtt_common.yaml vars: local_device_name: "${device_name}" #### WEB PORTAL #### #common_webportal: !include common/webportal_common.yaml #### SNTP (Only use if you want/need accurate timeclocks) #### #common_sntp: !include common/sntp_common.yaml #### DIAGNOSTICS Sensors #### diag_basic: !include common/include_basic_diag_sensors.yaml diag_more: !include common/include_more_diag_sensors.yaml #diag_debug: !include common/include_debug_diag_sensors.yaml #diag_resetcount: !include common/include_resetcount_diag_sensors.yaml ########################################################################################## # ESPHome # https://esphome.io/components/esphome.html ########################################################################################## esphome: name: ${device_name} friendly_name: ${friendly_name} comment: ${description_comment} #Appears on the esphome page in HA area: ${device_area} project: name: "${project_name}" version: "${project_version}" platformio_options: build_flags: - "-Os" # optimize for size - "-Wl,--gc-sections" # drop unused code/data #- "-fno-exceptions" # strip C++ exceptions #- "-fno-rtti" # strip C++ RTTI on_boot: priority: -100 then: - if: condition: switch.is_on: Relay_2 then: - if: condition: switch.is_off: Relay_1 then: - lambda: |- id(relay2_forced_relay1) = true; - switch.turn_on: Relay_1 ########################################################################################## # ESP Platform and Framework # https://esphome.io/components/esp32.html ########################################################################################## esp8266: board: esp01_1m early_pin_init: False # Initialise pins early to known values. Recommended false where switches are involved. Defaults to True. board_flash_mode: dout # Default is dout ########################################################################################## # ESPHome Logging Enable # https://esphome.io/components/logger.html ########################################################################################## logger: level: "${log_level}" #INFO Level suggested, or DEBUG for testing #baud_rate: 0 #set to 0 for no logging via UART, needed if you are using it for other serial things (eg PZEM) #esp8266_store_log_strings_in_flash: false #tx_buffer_size: 64 ########################################################################################## # GLOBAL VARIABLES # https://esphome.io/guides/automations.html?highlight=globals#global-variables ########################################################################################## globals: - id: relay2_forced_relay1 type: bool restore_value: yes initial_value: "false" ########################################################################################## # STATUS LED # https://esphome.io/components/status_led.html ########################################################################################## # Status LED for KS-811 is gpio2 ########################################################################################## status_led: pin: number: GPIO2 inverted: yes ########################################################################################## # BINARY SENSORS # https://esphome.io/components/binary_sensor/ ########################################################################################## # Buttons for KS-811-2 are GPIO16, GPIO05 ########################################################################################## binary_sensor: - platform: gpio pin: number: GPIO16 mode: INPUT inverted: True use_interrupt: false # GPO16 pin doesn't support interrupts so use polling. Only supresses a warning. name: "Button 1: Extract Fan" on_press: - switch.toggle: "Relay_1" - platform: gpio pin: number: GPIO05 mode: INPUT inverted: true name: "Button 2: IR Heater" filters: - delayed_on: 20ms - delayed_off: 20ms on_multi_click: # ── Single click: one quick press & release ───────────────── - timing: - ON for at most 400ms - OFF for at least 200ms then: - switch.toggle: "Relay_2" # ── Double click: two quick presses/releases ─────────────── - timing: - ON for at most 400ms - OFF for at most 400ms - ON for at most 400ms - OFF for at least 200ms then: - mqtt.publish: topic: "${mqtt_remote_device1_command_topic}" payload: "${mqtt_remote_device1_command1}" ########################################################################################## # SWITCH COMPONENT # https://esphome.io/components/switch/ ########################################################################################## # Relays for KS-811-2 are GPIO13, GPIO12 ########################################################################################## switch: - platform: gpio name: "Relay 1: Extract Fan" pin: GPIO13 id: Relay_1 on_turn_off: then: # Rule 3: If Relay_1 is turned OFF while Relay_2 is ON, turn OFF Relay_2 too - if: condition: switch.is_on: Relay_2 then: - switch.turn_off: Relay_2 - platform: gpio name: "Relay 2: IR Heater" pin: GPIO12 id: Relay_2 on_turn_on: then: # Rule 2: Relay_2 implies Relay_1 must be ON # Also capture whether Relay_2 had to force Relay_1 ON (Rule 4/5 memory) - lambda: |- id(relay2_forced_relay1) = !id(Relay_1).state; - switch.turn_on: Relay_1 on_turn_off: then: # Rule 4/5: # - If Relay_1 was ON before Relay_2, keep Relay_1 ON # - If Relay_2 was ON before Relay_1 (forced), then turn Relay_1 OFF now - if: condition: lambda: |- return id(relay2_forced_relay1); then: - switch.turn_off: Relay_1 ########################################################################################## # INTERVAL COMPONENT # https://esphome.io/components/interval/ ########################################################################################## # An assurance that if Relay_2 (Heater) is ever on, check that Relay_1 (Fan) is on also ########################################################################################## interval: - interval: 1s then: - if: condition: and: - switch.is_on: Relay_2 - switch.is_off: Relay_1 then: - switch.turn_off: Relay_2