setting up esphome

.vscode/settings.json

@@ -149,10 +149,12 @@
     "mklabel",
     "mkpart",
     "modbus",
+    "modbuss",
     "modesetting",
     "mountpoint",
     "mountpoints",
     "mousewheel",
+    "mqtt",
     "mtxr",
     "ncdu",
     "nemo",

esphome/.gitignore

@@ -0,0 +1,3 @@
+# esphome
+/.esphome/
+/secrets.yaml

esphome/batteries.yml

@@ -0,0 +1,129 @@
+esphome:
+  name: batteries
+  friendly_name: batteries
+
+esp32:
+  board: esp32dev
+  framework:
+    type: arduino
+
+logger:
+
+api:
+  encryption:
+    key: !secret api_key
+
+external_components:
+  - source: github://syssi/esphome-jk-bms@main
+
+ota:
+  - platform: esphome
+    password: !secret ota_password
+
+wifi:
+  ssid: !secret wifi_ssid
+  password: !secret wifi_password
+
+captive_portal:
+
+esp32_ble_tracker:
+  scan_parameters:
+    interval: 1100ms
+    window: 1100ms
+    active: true
+
+ble_client:
+  - mac_address: "C8:47:80:29:0F:DB"
+    id: jk_ble0
+  - mac_address: "C8:47:80:37:9D:DD"
+    id: jk_ble1
+
+jk_bms_ble:
+  - ble_client_id: jk_ble0
+    protocol_version: JK02_32S
+    throttle: 1s
+    id: jk_bms0
+
+  - ble_client_id: jk_ble1
+    protocol_version: JK02_32S
+    throttle: 1s
+    id: jk_bms1
+
+sensor:
+  # BMS1 sensors
+  - platform: jk_bms_ble
+    jk_bms_ble_id: jk_bms0
+    total_voltage:
+      name: "JK0 Total Voltage"
+    current:
+      name: "JK0 Current"
+    state_of_charge:
+      name: "JK0 SoC"
+    power:
+      name: "JK0 Power"
+    temperature_sensor_1:
+      name: "JK0 Temp 1"
+    temperature_sensor_2:
+      name: "JK0 Temp 2"
+    balancing:
+      name: "JK0 balancing"
+    charging_cycles:
+      name: "JK0 charging cycles"
+    total_runtime:
+      name: "JK0 total runtime"
+    balancing_current:
+      name: "JK0 balancing current"
+
+  # BMS2 sensors
+  - platform: jk_bms_ble
+    jk_bms_ble_id: jk_bms1
+    total_voltage:
+      name: "JK1 Total Voltage"
+    current:
+      name: "JK1 Current"
+    state_of_charge:
+      name: "JK1 SoC"
+    power:
+      name: "Jk1 Power"
+    temperature_sensor_1:
+      name: "JK1 Temp 1"
+    temperature_sensor_2:
+      name: "Jk1 Temp 2"
+    balancing:
+      name: "JK1 balancing"
+    charging_cycles:
+      name: "JK1 charging cycles"
+    total_runtime:
+      name: "JK1 total runtime"
+    balancing_current:
+      name: "JK1 balancing current"
+
+text_sensor:
+  - platform: jk_bms_ble
+    jk_bms_ble_id: jk_bms0
+    errors:
+      name: "JK0 Errors"
+
+  - platform: jk_bms_ble
+    jk_bms_ble_id: jk_bms1
+    errors:
+      name: "JK1 Errors"
+
+switch:
+  - platform: jk_bms_ble
+    jk_bms_ble_id: jk_bms0
+    charging:
+      name: "JK0 Charging"
+    discharging:
+      name: "JK0 Discharging"
+    balancer:
+      name: "JK0 Balancing"
+
+  - platform: jk_bms_ble
+    jk_bms_ble_id: jk_bms1
+    charging:
+      name: "JK1 Charging"
+    discharging:
+      name: "JK1 Discharging"
+    balancer:
+      name: "JK1 Balancing"

systems/brain/services/home_assistant.nix

@@ -28,6 +28,7 @@
           temperature_unit = "F";
           packages = {
             victron_modbuss = "!include ${./home_assistant/victron_modbuss.yaml}";
+            battery_sensors = "!include ${./home_assistant/battery_sensors.yaml}";
           };
         };
         recorder = {
@@ -67,6 +68,8 @@
           forecast-solar # for solar forecast
           aioesphomeapi # for esphome
           esphome-dashboard-api # for esphome
+          py-improv-ble-client # for esphome
+          bleak-esphome # for esphome
         ];
       extraComponents = [ "isal" ];
     };

systems/brain/services/home_assistant/battery_sensors.yaml

@@ -0,0 +1,99 @@
+template:
+  - sensor:
+      # Battery 0
+      - name: "JK0 charge power W"
+        unique_id: jk0_charge_power_w
+        unit_of_measurement: W
+        device_class: power
+        state_class: measurement
+        state: >
+          {% set p = states('sensor.batteries_jk0_power')|float(0) %}
+          {{ max(0, p) }}
+      - name: "JK0 discharge power W"
+        unique_id: jk0_discharge_power_w
+        unit_of_measurement: W
+        device_class: power
+        state_class: measurement
+        state: >
+          {% set p = states('sensor.batteries_jk0_power')|float(0) %}
+          {{ max(0, -p) }}
+
+      # Battery 1
+      - name: "JK1 charge power W"
+        unique_id: jk1_charge_power_w
+        unit_of_measurement: W
+        device_class: power
+        state_class: measurement
+        state: >
+          {% set p = states('sensor.batteries_jk1_power')|float(0) %}
+          {{ max(0, p) }}
+      - name: "JK1 discharge power W"
+        unique_id: jk1_discharge_power_w
+        unit_of_measurement: W
+        device_class: power
+        state_class: measurement
+        state: >
+          {% set p = states('sensor.batteries_jk1_power')|float(0) %}
+          {{ max(0, -p) }}
+
+sensor:
+  # Battery 0
+  - platform: integration
+    source: sensor.jk0_charge_power_w
+    name: "JK0 energy in"
+    unique_id: jk0_energy_in_kwh
+    unit_prefix: k
+    method: trapezoidal
+    round: 3
+    max_sub_interval:
+      minutes: 5
+  - platform: integration
+    source: sensor.jk0_discharge_power_w
+    name: "JK0 energy out"
+    unique_id: jk0_energy_out_kwh
+    unit_prefix: k
+    method: trapezoidal
+    round: 3
+    max_sub_interval:
+      minutes: 5
+
+  # Battery 1
+  - platform: integration
+    source: sensor.jk1_charge_power_w
+    name: "JK1 energy in"
+    unique_id: jk1_energy_in_kwh
+    unit_prefix: k
+    method: trapezoidal
+    round: 3
+    max_sub_interval:
+      minutes: 5
+  - platform: integration
+    source: sensor.jk1_discharge_power_w
+    name: "JK1 energy out"
+    unique_id: jk1_energy_out_kwh
+    unit_prefix: k
+    method: trapezoidal
+    round: 3
+    max_sub_interval:
+      minutes: 5
+
+utility_meter:
+  # Battery 0
+  jk0_energy_in_daily:
+    source: sensor.jk0_energy_in
+    name: "JK0 Energy In Daily"
+    cycle: daily
+  jk0_energy_out_daily:
+    source: sensor.jk0_energy_out
+    name: "JK0 Energy Out Daily"
+    cycle: daily
+
+  # Battery 1
+  jk1_energy_in_daily:
+    source: sensor.jk1_energy_in
+    name: "JK1 Energy In Daily"
+    cycle: daily
+  jk1_energy_out_daily:
+    source: sensor.jk1_energy_out
+    name: "JK1 Energy Out Daily"
+    cycle: daily

users/richie/home/programs.nix

@@ -24,6 +24,8 @@
     unzip
     yazi
     zoxide
+    # Home Assistant
+    esphome
     # data recovery
     testdisk
     # system info