easypower.yaml

esphome:
  name: easypower

esp8266:
  board: nodemcuv2

# Enable logging
logger:

# Enable Home Assistant API
api:
  password: ""
  reboot_timeout: 0s

ota:
  password: ""

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "EasyPower Config"
    password: "12345678"

captive_portal:

font:
  - id: fbody
    file: Menlo-Regular.ttf
    size: 12

i2c:
  scl: D1
  sda: D2
  frequency: 800kHz

globals:
  - id: work_time
    type: long
    initial_value: '0'
  - id: capacity  # 使用电量，单位 mWh
    type: float
    initial_value: '0'

mqtt:
  broker: !secret mqtt_broker
  topic_prefix: "easypower"
  log_topic:
    topic: debug
    level: NONE

sensor:
  - platform: uptime
    name: Uptime Sensor
    id: uptime_sensor
    update_interval: 1s
  - platform: ina219
    address: 0x40
    shunt_resistance: 0.1 ohm
    current:
      name: "INA219 Current"
      id: ina_cur
      on_value:
        then:
          - lambda: |-
              static long last_time = 0;
              if (last_time == 0) {
                last_time = millis();
                return;
              }
              long duration = millis() - last_time;
              last_time = millis();
              float cur = id(ina_cur).state * 1000.0;
              float volt = floor(id(ina_bus).state * 100) / 100.0;
              float power = volt * cur;
              if (volt == 0 || fabs(cur) < 2.0) {
                return;
              }
              float cap = volt * cur * duration / 1000.0 / 3600.0;
              id(capacity) += cap;
              id(work_time) += duration;
          - if:
              condition:
                lambda: 'return fabs(id(ina_cur).state * 1000.0) >= 2.0;'
              then:
                - mqtt.publish_json:
                    topic: easypower/metrics
                    payload: |-
                      root["current"] = id(ina_cur).state * 1000.0;
                      root["voltage"] = floor(id(ina_bus).state * 100) / 100.0;
                      root["power"] = id(ina_cur).state * 1000.0 * id(ina_bus).state;
                      root["capacity"] = id(capacity);
                      root["work_time"] = id(work_time);
    power:
      name: "INA219 Power"
      id: ina_power
    bus_voltage:
      name: "INA219 Bus Voltage"
      id: ina_bus
    shunt_voltage:
      name: "INA219 Shunt Voltage"
      id: ina_shunt
    max_voltage: 32.0V
    max_current: 3.2A
    update_interval: 100ms

display:
  - platform: ssd1306_i2c
    model: "SSD1306 128x64"
    rotation: 180
    address: 0x3C
    update_interval: 100ms
    lambda: |-
      it.printf(0, 0, id(fbody), "%0.2f V %*.0f mA", id(ina_bus).state, 4, id(ina_cur).state * 1000.0);
      it.printf(0, 16, id(fbody), "Power: %0.3f W", id(ina_power).state);
      it.printf(0, 32, id(fbody), "Cap: %0.3f mWh", id(capacity));
      it.printf(0, 48, id(fbody), "Work: %0.0fs", id(work_time) / 1000.0);