initial commit

esphome/home-energy-monitor.yaml

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+substitutions:
+  friendly_name: "Home Energy Monitor"
+  device_name: home-energy-monitor
+  update_time: 59s
+# SCT-013-000 (100A/50mA) calibration value
+  current_cal: '27518'
+# Jameco 9VAC Transformer (board v1.3+)
+  voltage_cal: '7305'
+
+esphome:
+  name: ${device_name}
+  friendly_name: ${friendly_name}
+
+esp32:
+  board: nodemcu-32s
+  framework:
+    type: esp-idf
+
+# Enable logging
+logger:
+  level: INFO
+
+# Enable Home Assistant API
+api:
+  encryption:
+    key: !secret api_encryption_key
+
+# Enable OTA updates
+ota:
+  - platform: esphome
+
+wifi:
+  ssid: !secret wifi_iot_ssid
+  password: !secret wifi_password
+
+  # Fallback hotspot if Wi-Fi fails
+  ap:
+    ssid: ${device_name}
+    password: !secret wifi_password
+  
+  # Prevents aggressive reconnection attempts
+  power_save_mode: none  # Use 'light' for battery devices
+  
+  # Slower but more reliable connection
+  fast_connect: true
+  
+  # Handle connection failures gracefully
+  on_connect:
+    - logger.log: "Wi-Fi connected!"
+  on_disconnect:
+    - logger.log: "Wi-Fi disconnected!"
+
+# Reduce mDNS traffic
+mdns:
+  disabled: true  # Set to true if using static IPs and don't need discovery
+
+#captive_portal:
+
+web_server:
+  port: 80
+# SPI bus configuration
+spi:
+  clk_pin: 18
+  miso_pin: 19
+  mosi_pin: 23
+
+sensor:
+  # ──────────────────────────────────
+  # IC1: Channels 1-3 (CS pin 5)
+  # ──────────────────────────────────
+  - platform: atm90e32
+    cs_pin: 5
+    phase_a:
+      voltage:
+        name: ${device_name} Volts
+        id: ic1Volts
+        accuracy_decimals: 1
+      current:
+        name: ${device_name} CT1 Amps
+        id: ct1Amps
+      power:
+        name: ${device_name} CT1 Watts
+        id: ct1Watts
+      gain_voltage: ${voltage_cal}
+      gain_ct: ${current_cal}
+    phase_b:
+      current:
+        name: ${device_name} CT2 Amps
+        id: ct2Amps
+      power:
+        name: ${device_name} CT2 Watts
+        id: ct2Watts
+      gain_voltage: ${voltage_cal}
+      gain_ct: ${current_cal}
+    phase_c:
+      current:
+        name: ${device_name} CT3 Amps
+        id: ct3Amps
+      power:
+        name: ${device_name} CT3 Watts
+        id: ct3Watts
+      gain_voltage: ${voltage_cal}
+      gain_ct: ${current_cal}
+    frequency:
+      name: ${device_name} Frequency
+    line_frequency: 60Hz
+    gain_pga: 1X
+    update_interval: ${update_time}
+
+  # ──────────────────────────────────
+  # IC2: Channels 4-6 (CS pin 4)
+  # ──────────────────────────────────
+  - platform: atm90e32
+    cs_pin: 4
+    phase_a:
+      current:
+        name: ${device_name} CT4 Amps
+        id: ct4Amps
+      power:
+        name: ${device_name} CT4 Watts
+        id: ct4Watts
+      gain_voltage: ${voltage_cal}
+      gain_ct: ${current_cal}
+    phase_b:
+      current:
+        name: ${device_name} CT5 Amps
+        id: ct5Amps
+      power:
+        name: ${device_name} CT5 Watts
+        id: ct5Watts
+      gain_voltage: ${voltage_cal}
+      gain_ct: ${current_cal}
+    phase_c:
+      current:
+        name: ${device_name} CT6 Amps
+        id: ct6Amps
+      power:
+        name: ${device_name} CT6 Watts
+        id: ct6Watts
+      gain_voltage: ${voltage_cal}
+      gain_ct: ${current_cal}
+    line_frequency: 60Hz
+    gain_pga: 1X
+    update_interval: ${update_time}
+
+  # ──────────────────────────────────
+  # Calculated: Total Home Power
+  # (CT1 = Main Leg 1, CT2 = Main Leg 2)
+  # ──────────────────────────────────
+  - platform: template
+    name: ${device_name} Total Watts
+    id: totalWatts
+    lambda: "return id(ct1Watts).state + id(ct2Watts).state;"
+    accuracy_decimals: 1
+    unit_of_measurement: W
+    device_class: power
+    update_interval: ${update_time}
+
+  - platform: total_daily_energy
+    name: ${device_name} Total Daily Energy
+    power_id: totalWatts
+    unit_of_measurement: kWh
+    accuracy_decimals: 2
+    filters:
+      - multiply: 0.001
+
+# Diagnostic sensors
+  - platform: wifi_signal
+    name: "${device_name} WiFi Signal"
+    update_interval: 60s
+    
+  - platform: uptime
+    name: "${device_name} Uptime"
+    update_interval: 60s
+
+time:
+  - platform: homeassistant
+    id: homeassistant_time
+
+text_sensor:
+  - platform: wifi_info
+    ip_address:
+      name: "${device_name} IP Address"
+    ssid:
+      name: "${device_name} Connected SSID"
+    bssid:
+      name: "${device_name} BSSID"
+
+# Watchdog to auto-reboot if things go wrong
+interval:
+  - interval: 5min
+    then:
+      - if:
+          condition:
+            and:
+              - lambda: 'return millis() > 300000;'  # >5 min uptime
+              - not:
+                  wifi.connected:
+          then:
+            - logger.log: "Wi-Fi not connected for 5 min, rebooting..."
+            - delay: 10s
+            - lambda: 'App.safe_reboot();'