substitutions: # Default name name: "athom-smart-plug-v3" # Default friendly name friendly_name: "Athom Plug V3" # Allows ESP device to be automatically linked to an 'Area' in Home Assistant. Typically used for areas such as 'Lounge Room', 'Kitchen' etc room: "" # Description as appears in ESPHome & top of webserver page device_description: "athom esp32-c3 power monitoring smart plug" # Project Name project_name: "China Athom Technology.Athom Plug V3" # Projection version denotes the release version of the yaml file, allowing checking of deployed vs latest version project_version: "v2.0.9" # Restore the relay (GPO switch) upon reboot to state: relay_restore_mode: RESTORE_DEFAULT_ON # Set the update interval for sensors sensor_update_interval: 10s # Current Limit in Amps. AU Plug = 10. IL, BR, EU, UK, US Plug = 16. current_limit : "16" # Define a domain for this device to use. i.e. iot.home.lan (so device will appear as athom-smart-plug-v2.iot.home.lan in DNS/DHCP logs) dns_domain: ".local" # Set timezone of the smart plug. Useful if the plug is in a location different to the HA server. Can be entered in unix Country/Area format (i.e. "Australia/Sydney") timezone: "" # Set the duration between the sntp service polling ntp.org servers for an update sntp_update_interval: 6h # Network time servers for your region, enter from lowest to highest priority. To use local servers update as per zones or countries at: https://www.ntppool.org/zone/@ sntp_server_1: "0.pool.ntp.org" sntp_server_2: "1.pool.ntp.org" sntp_server_3: "2.pool.ntp.org" # Enables faster network connections, with last connected SSID being connected to and no full scan for SSID being undertaken wifi_fast_connect: "false" # Define logging level: NONE, ERROR, WARN, INFO, DEBUG (Default), VERBOSE, VERY_VERBOSE log_level: "DEBUG" # Hide the ENERGY sensor that shows kWh consumed, but with no time period associated with it. Resets when device restarted and reflashed. hide_energy_sensor: "true" # Enable or disable the use of IPv6 networking on the device ipv6_enable: "false" # Power plug icon selection. Change to reflect the type/country of powr plug in use, this will update the power plug icon shown next to the switch power_plug_type: "power-socket-eu" # Options: power-socket-au | power-socket-ch | power-socket-de | power-socket-eu | power-socket-fr | power-socket-it | power-socket-jp | power-socket-uk | power-socket-us | ########################## End of Substitutions ######################### esphome: name: "${name}" friendly_name: "${friendly_name}" comment: "${device_description}" area: "${room}" name_add_mac_suffix: true min_version: 2026.8.0 project: name: "${project_name}" version: "${project_version}" platformio_options: board_build.mcu: esp32c3 board_build.variant: esp32c3 board_build.flash_mode: dio on_boot: - priority: 600 then: - select.set_index: id: power_mode index: !lambda |- return id(restore_mode)-1; - lambda: |- switch(id(restore_mode)) { case 1:{ id(relay).turn_off(); break; } case 2:{ id(relay).turn_on(); break; } default:{ break; } } esp32: board: esp32-c3-devkitm-1 flash_size: 4MB variant: ESP32C3 framework: type: esp-idf version: recommended sdkconfig_options: # @grigi found in testing that these options resulted in better responsiveness. # BLE 4.2 is supported by ALL ESP32 boards that have bluetooth, the original and derivatives. CONFIG_BT_BLE_42_FEATURES_SUPPORTED: y # Also enable this on any derivative boards (S2, C3 etc) but not the original ESP32. CONFIG_BT_BLE_50_FEATURES_SUPPORTED: y # Extend the watchdog timeout, so the device reboots if the device appears locked up for over 10 seconds. CONFIG_ESP_TASK_WDT_TIMEOUT_S: "10" preferences: flash_write_interval: 5min api: # reboot_timeout: 0s # Only enable BLE tracking when wifi is up and api is connected # Gives single-core ESP32-C3 devices time to manage wifi and authenticate with api on_client_connected: - esp32_ble_tracker.start_scan: continuous: true # Disable BLE tracking when there are no api connections live on_client_disconnected: if: condition: not: api.connected: then: - esp32_ble_tracker.stop_scan: ota: - platform: esphome id: ota_esphome # Enables OTA firmware flashing from a URL (used by the update component below) - platform: http_request id: ota_http_request # Required by the ota http_request platform and the update component. # verify_ssl: false skips TLS cert validation to reduce heap/RAM pressure during # the download; the manifest's MD5 still verifies firmware integrity before flashing. http_request: id: http_request_component verify_ssl: false update: # Managed updates via HTTP request: periodically checks the published manifest # and exposes a "Firmware Update" entity, pointing at this device's GitHub Pages # manifest. Pages URLs avoid the redirect/buffer issues of Release download URLs. - platform: http_request id: update_http_request name: "Firmware Update" source: https://athom-tech.github.io/esp32-configs/firmware/athom-smart-plug.manifest.json # update_interval defaults to 6h (how often it checks, not installs) logger: baud_rate: 0 # 0 Enables logging, but disables serial-port logging to free CPU and memory level: ${log_level} mdns: disabled: false web_server: port: 80 # version: 3 network: enable_ipv6: ${ipv6_enable} wifi: # This spawns an AP with the device name and mac address with no password. ap: {} # Allow rapid re-connection to previously connect WiFi SSID, skipping scan of all SSID fast_connect: "${wifi_fast_connect}" # Define dns domain / suffix to add to hostname domain: "${dns_domain}" captive_portal: esp32_improv: authorizer: none esp32_ble_tracker: scan_parameters: # Don't auto start BLE scanning, we control it in the `api` block's automation. continuous: false active: true # send scan-request packets to gather more info, like device name for some devices. interval: 320ms # default 320ms - how long to spend on each advert channel window: 300ms # default 30ms - how long to actually "listen" in each interval. Reduce this if device is unstable. # If the device cannot keep up or becomes unstable, reduce the "window" setting. This may be # required if your device is controlling other sensors or doing PWM for lights etc. bluetooth_proxy: active: true dashboard_import: package_import_url: github://athom-tech/esp32-configs/athom-smart-plug.yaml uart: id: uart_cse7766 rx_pin: GPIO20 baud_rate: 4800 data_bits: 8 stop_bits: 1 parity: EVEN globals: - id: total_energy type: float restore_value: yes initial_value: '0.0' - id: restore_mode type: int restore_value: yes initial_value: "2" # 0 = Always_Off. 1 = Restore_Power_Off. 2 = Always_On. select: - platform: template name: "Power On State" id: "power_mode" optimistic: true icon: mdi:electric-switch options: - Always Off - Always On - Restore Power Off State on_value: then: - lambda: |- id(restore_mode)=i+1; binary_sensor: - platform: status name: "Status" id: id_status icon: mdi:check-network-outline entity_category: diagnostic - platform: gpio pin: number: GPIO3 mode: INPUT_PULLUP inverted: true name: "Power Button" id: power_button disabled_by_default: true filters: - delayed_on_off: 20ms on_multi_click: - timing: - ON for at most 1s - OFF for at least 0.2s then: # Ignore short press when child lock is on, to stop kids toggling the socket - if: condition: switch.is_off: child_lock then: - switch.toggle: relay - timing: - ON for at least 4s then: # Ignore long press when child lock is on, to prevent accidental factory reset - if: condition: switch.is_off: child_lock then: - button.press: Reset sensor: - platform: uptime name: "Uptime Sensor" id: uptime_sensor type: timestamp entity_category: "diagnostic" - platform: wifi_signal name: "WiFi Signal dB" id: wifi_signal_db update_interval: 60s entity_category: "diagnostic" - platform: copy source_id: wifi_signal_db name: "WiFi Signal Percent" id: wifi_signal_percent filters: - lambda: return min(max(2 * (x + 100.0), 0.0), 100.0); unit_of_measurement: "Signal %" entity_category: "diagnostic" device_class: "" - platform: cse7766 id: athom_cse7766 current: name: "Current" icon: mdi:current-ac filters: - throttle_average: ${sensor_update_interval} on_value_range: - above: ${current_limit} then: - switch.turn_off: relay voltage: name: "Voltage" icon: mdi:sine-wave filters: - throttle_average: ${sensor_update_interval} power: name: "Power" id: power_sensor icon: mdi:power filters: - throttle_average: ${sensor_update_interval} energy: name: "Energy" id: energy icon: mdi:lightning-bolt unit_of_measurement: kWh filters: - throttle: ${sensor_update_interval} # Multiplication factor from W to kW is 0.001 - multiply: 0.001 on_value: then: - lambda: |- static float previous_energy_value = 0.0; float current_energy_value = id(energy).state; id(total_energy) += current_energy_value - previous_energy_value; previous_energy_value = current_energy_value; id(total_energy_sensor).update(); apparent_power: name: "Apparent Power" icon: mdi:power filters: - throttle_average: ${sensor_update_interval} reactive_power: name: "Reactive Power" icon: mdi:flash filters: - throttle_average: ${sensor_update_interval} power_factor: name: "Power Factor" icon: mdi:percent-outline filters: - throttle_average: ${sensor_update_interval} - platform: template name: "Total Energy" id: total_energy_sensor unit_of_measurement: kWh device_class: "energy" state_class: "total_increasing" icon: mdi:lightning-bolt accuracy_decimals: 3 lambda: |- return id(total_energy); update_interval: ${sensor_update_interval} - platform: total_daily_energy name: "Total Daily Energy" id: id_total_daily_energy restore: true power_id: power_sensor unit_of_measurement: kWh icon: mdi:hours-24 accuracy_decimals: 3 filters: - multiply: 0.001 button: - platform: restart name: "Restart" id: id_restart entity_category: config - platform: factory_reset name: "Factory Reset" id: Reset entity_category: config - platform: safe_mode name: "Safe Mode" id: id_safe_mode internal: false entity_category: config - platform: template name: "Reset Total Energy" icon: mdi:restart-alert entity_category: config on_press: then: - lambda: |- id(total_energy) = 0.0; id(total_energy_sensor).update(); switch: - platform: gpio name: "Switch" pin: GPIO5 id: relay restore_mode: ${relay_restore_mode} icon: mdi:${power_plug_type} # Child lock: when on, ignore physical button short/long press, but keep remote (HA/web) control working - platform: template name: "Child Lock" id: child_lock icon: mdi:lock optimistic: true restore_mode: RESTORE_DEFAULT_OFF # Keep last state after power loss/reboot, default off on first boot entity_category: config light: - platform: status_led name: "Status LED" id: blue_led icon: mdi:lightbulb-outline disabled_by_default: true pin: inverted: true number: GPIO6 text_sensor: - platform: wifi_info ip_address: name: "IP Address" icon: mdi:ip-network entity_category: diagnostic ssid: name: "Connected SSID" icon: mdi:wifi-strength-2 entity_category: diagnostic mac_address: name: "Mac Address" icon: mdi:network-pos entity_category: diagnostic # Creates a sensor showing when the device was last restarted - platform: template name: 'Last Restart' id: device_last_restart icon: mdi:clock entity_category: diagnostic # device_class: timestamp time: - platform: sntp id: sntp_time # Define the timezone of the device timezone: "${timezone}" # Change sync interval from default 5min to 6 hours (or as set in substitutions) update_interval: ${sntp_update_interval} # Set specific sntp servers to use servers: - "${sntp_server_1}" - "${sntp_server_2}" - "${sntp_server_3}" # Publish the time the device was last restarted on_time_sync: then: # Update last restart time, but only once. - if: condition: lambda: 'return id(device_last_restart).state == "";' then: - text_sensor.template.publish: id: device_last_restart state: !lambda 'return id(sntp_time).now().strftime("%a %d %b %Y - %I:%M:%S %p");'