419 lines
12 KiB
Nix
419 lines
12 KiB
Nix
{ pkgs, lib, config, ... }:
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let
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# allow new devices to join
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enablePairing = false;
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device = "/dev/ttyACM0";
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dataFolder = "/srv/zigbee/data";
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sensors = {
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buttons = {
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"button_1".id = "0x00158d0002b04f65";
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"button_2".id = "0x00158d0002b04f09";
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"button_3".id = "0x00158d0002b00e04";
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};
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temperature = {
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"temperature_sensor_1".id = "0x00158d0002d79220";
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"temperature_sensor_2".id = "0x00158d0002d7913d";
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};
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motion = {
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"motion_sensor_1".id = "0x00158d0002fbd451";
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"motion_sensor_2".id = "0x00158d0002f9a6b8";
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"motion_sensor_3".id = "0x00158d0002f04522";
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"motion_sensor_4".id = "0x00158d0002f9a558";
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"motion_sensor_5".id = "0x00158d0002f9a56f";
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"motion_sensor_6".id = "0x00158d0002f9a5cb";
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"motion_sensor_7".id = "0x00158d0002f9a6aa";
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"motion_sensor_8".id = "0x00158d0002f04637";
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};
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door = {
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"door_sensor_1".id = "0x00158d000312dc52";
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"door_sensor_2".id = "0x00158d000316d5bf";
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"door_sensor_3".id = "0x00158d0002f9516f";
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"door_sensor_4".id = "0x00158d00031383b9";
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"door_sensor_5".id = "0x00158d0003120d3e";
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};
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};
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# todo : generate automatically
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allSensors = with sensors; buttons // temperature // motion // door;
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zigBee2MqttConfig = {
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# Home Assistant integration (MQTT discovery)
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homeassistant = false;
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# homeassistant = true;
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# allow new devices to join
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permit_join = enablePairing;
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# MQTT settings
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mqtt = {
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# MQTT base topic for zigbee2mqtt MQTT messages
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base_topic = "zigbee2mqtt";
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# MQTT server URL
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server = "mqtt://127.0.0.1:1883";
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# MQTT server authentication, uncomment if required:
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user = "zigbee";
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password = lib.fileContents <secrets/zigbee/password>;
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};
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# Serial settings
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serial = {
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port = "/dev/ttyACM0";
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# Optional: disable LED of CC2531 USB sniffer
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disable_led = true;
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};
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devices = lib.mapAttrs' (name:
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{ id, ... }: {
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name = id;
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value = {
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retain = false;
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friendly_name = name;
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};
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}) allSensors;
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};
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configurationYaml =
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pkgs.writeText "configuration.yml" (builtins.toJSON zigBee2MqttConfig);
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in {
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imports = [ ./mqtt.nix ];
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services.homeAssistantConfig = {
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# define sensors
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# --------------
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sensor = let
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# define button sensors
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buttons = with lib;
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mapAttrsToList (name:
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{ ... }: [{
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platform = "mqtt";
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name = name;
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icon = "mdi:toggle-switch";
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state_topic = "zigbee2mqtt/${name}";
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availability_topic = "zigbee2mqtt/bridge/state";
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value_template = "{{ value_json.click }}";
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}]) sensors.buttons;
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# define temperature sensors
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temperature = with lib;
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mapAttrsToList (name:
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{ ... }: [
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{
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platform = "mqtt";
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name = name;
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state_topic = "zigbee2mqtt/${name}";
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availability_topic = "zigbee2mqtt/bridge/state";
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unit_of_measurement = "°C";
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device_class = "temperature";
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value_template = "{{ value_json.temperature }}";
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}
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{
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platform = "mqtt";
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name = "humidity_${name}";
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state_topic = "zigbee2mqtt/${name}";
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availability_topic = "zigbee2mqtt/bridge/state";
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unit_of_measurement = "%";
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device_class = "humidity";
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value_template = "{{ value_json.humidity }}";
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}
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{
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platform = "mqtt";
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name = "pressure_${name}";
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state_topic = "zigbee2mqtt/${name}";
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availability_topic = "zigbee2mqtt/bridge/state";
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unit_of_measurement = "hPa";
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device_class = "pressure";
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value_template = "{{ value_json.pressure }}";
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}
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]) sensors.temperature;
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# define meta information sensors
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informations = lib.mapAttrsToList (name:
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{ ... }: [
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{
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name = "battery_${name}";
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platform = "mqtt";
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state_topic = "zigbee2mqtt/${name}";
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availability_topic = "zigbee2mqtt/bridge/state";
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unit_of_measurement = "%";
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icon = "mdi:battery-10";
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value_template = "{{ value_json.battery }}";
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}
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{
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name = "link_${name}";
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platform = "mqtt";
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state_topic = "zigbee2mqtt/${name}";
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availability_topic = "zigbee2mqtt/bridge/state";
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icon = "mdi:signal";
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unit_of_measurement = "lqi";
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value_template = "{{ value_json.linkquality }}";
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}
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]) allSensors;
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in lib.flatten (buttons ++ temperature ++ informations);
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# define binary sensors
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# ---------------------
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binary_sensor = let
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# define motion sensors
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# ---------------------
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motion = lib.mapAttrsToList (name:
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{ ... }: {
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name = name;
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platform = "mqtt";
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device_class = "motion";
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state_topic = "zigbee2mqtt/${name}";
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availability_topic = "zigbee2mqtt/bridge/state";
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payload_on = true;
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payload_off = false;
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value_template = "{{ value_json.occupancy }}";
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}) sensors.motion;
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# define door sensors
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# -------------------
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door = lib.mapAttrsToList (name:
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{ ... }: {
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name = name;
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platform = "mqtt";
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device_class = "door";
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state_topic = "zigbee2mqtt/${name}";
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availability_topic = "zigbee2mqtt/bridge/state";
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payload_on = false;
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payload_off = true;
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value_template = "{{ value_json.contact}}";
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}) sensors.door;
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in lib.flatten (motion ++ door);
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# create groups
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# -------------
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# to have nice panels for every device
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group = let
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information = name: [ "sensor.battery_${name}" "sensor.link_${name}" ];
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sensorButtons = lib.mapAttrs' (name:
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{ ... }: {
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name = name;
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value = {
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control = "hidden";
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entities = [ "sensor.${name}" ] ++ (information name);
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};
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}) (sensors.buttons);
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sensorTemperature = lib.mapAttrs' (name:
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{ ... }: {
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name = name;
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value = {
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control = "hidden";
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entities = [
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"sensor.${name}"
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"sensor.humidity_${name}"
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"sensor.pressure_${name}"
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] ++ (information name);
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};
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}) (sensors.temperature);
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sensorMotions = lib.mapAttrs' (name:
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{ ... }: {
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name = name;
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value = {
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control = "hidden";
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entities = [ "binary_sensor.${name}" ] ++ (information name);
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};
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}) (sensors.motion);
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sensorDoors = lib.mapAttrs' (name:
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{ ... }: {
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name = name;
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value = {
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control = "hidden";
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entities = [ "binary_sensor.${name}" ] ++ (information name);
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};
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}) (sensors.door);
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views = {
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view_sensors = {
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name = "Sensoren";
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control = "hidden";
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view = true;
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entities =
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lib.mapAttrsToList (name: { ... }: "group.${name}") allSensors;
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};
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};
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in views // sensorButtons // sensorMotions // sensorTemperature
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// sensorDoors // {
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all_sensors.entities =
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(lib.mapAttrsToList (name: { ... }: "sensor.${name}")
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(sensors.buttons // sensors.temperature))
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++ (lib.mapAttrsToList (name: { ... }: "binary_sensor.${name}")
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(sensors.motion // sensors.door));
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};
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# create automation
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# -----------------
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# todo : this belongs in the home-assistant.nix
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automation = let
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# hold, turn off the lights everywhere
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all_lights_off = map (button: {
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alias = "turn all lights off on holding a button";
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trigger = {
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platform = "mqtt";
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topic = "zigbee2mqtt/${button}";
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};
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condition = {
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condition = "template";
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value_template = ''{{ "hold" == trigger.payload_json.action }}'';
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};
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action = { service = "script.turn_all_off"; };
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}) [ "button_1" "button_2" "button_3" ];
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# one click, turn on the light in the room
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room_lights_on = map ({ button, room }: {
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alias = "turn on lights in ${room}, on ${button} click";
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trigger = {
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platform = "mqtt";
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topic = "zigbee2mqtt/${button}";
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};
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condition = {
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condition = "template";
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value_template = ''{{ "single" == trigger.payload_json.click }}'';
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};
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action = {
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service = "switch.turn_on";
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entity_id = "group.${room}";
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};
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}) [
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{
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button = "button_1";
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room = "living_room";
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}
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{
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button = "button_2";
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room = "bed_room";
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}
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{
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button = "button_3";
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room = "bed_room";
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}
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];
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# double click, turn off the light in the room
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room_lights_off = map ({ button, room }: {
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alias = "turn on lights in ${room}, on ${button} click";
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trigger = {
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platform = "mqtt";
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topic = "zigbee2mqtt/${button}";
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};
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condition = {
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condition = "template";
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value_template = ''{{ "double" == trigger.payload_json.click }}'';
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};
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action = {
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service = "switch.turn_off";
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entity_id = "group.${room}";
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};
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}) [
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{
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button = "button_1";
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room = "living_room";
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}
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{
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button = "button_2";
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room = "bed_room";
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}
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{
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button = "button_3";
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room = "bed_room";
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}
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];
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# kitchen light automation
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# ------------------------
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# https://www.home-assistant.io/integrations/binary_sensor.template/
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kitchen_lights = map (motion: [
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{
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alias = "turn on kitchen lights, on motion detected";
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trigger = {
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platform = "state";
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entity_id = "binary_sensor.${motion}";
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from = "off";
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to = "on";
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};
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action = {
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service = "switch.turn_on";
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entity_id = "group.kitchen_room";
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};
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}
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{
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alias = "turn off kitchen lights, on motion clear";
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trigger = {
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platform = "state";
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entity_id = "binary_sensor.${motion}";
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from = "on";
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to = "off";
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};
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action = {
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service = "switch.turn_off";
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entity_id = "group.kitchen_room";
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};
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}
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]) [ "motion_sensor_1" ];
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in lib.flatten
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(kitchen_lights ++ all_lights_off ++ room_lights_on ++ room_lights_off);
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# click = double => music an aus
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# click = hold => film an aus
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};
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# manage zigbee2mqtt
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# ------------------
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# todo : einen eigenen container bauen mit dockerTool : https://nixos.wiki/wiki/Docker
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virtualisation.docker.enable = true;
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systemd.services."zigbee2mqtt" = {
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enable = true;
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description =
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"Allows you to use your Zigbee devices without the vendors bridge/gateway.";
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after = [ "docker.service" ];
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requires = [ "docker.service" ];
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# todo : udev rule erstellen, die diesen service erst startet, dieses wanted by ist labil
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wantedBy = [ "home-assistant.service" ];
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preStart = ''
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if [ -f ${dataFolder}/configuration.yaml ]
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then
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rm ${dataFolder}/configuration.yaml
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fi
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mkdir -p ${dataFolder}
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cat ${configurationYaml} | ${pkgs.yq}/bin/yq --yaml-output '.' > ${dataFolder}/configuration.yaml
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'';
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restartTriggers = [ configurationYaml ];
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script = ''
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# delete old instance to ensure update
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${pkgs.docker}/bin/docker stop zigbee2mqtt || true && ${pkgs.docker}/bin/docker rm -f zigbee2mqtt || true
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# start instance
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${pkgs.docker}/bin/docker run \
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--network="host" \
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--name zigbee2mqtt \
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-v ${dataFolder}:/app/data \
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--device=${device} \
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koenkk/zigbee2mqtt
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'';
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};
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}
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