Add ESP-FBot battery integration device page (#1373)

* Add ESP-FBot battery integration device page

* Fixed line length

* Update src/docs/devices/ESP-FBot/index.md

Co-authored-by: Copilot <[email protected]>

* Update src/docs/devices/ESP-FBot/index.md

Co-authored-by: Copilot <[email protected]>

* Line fixes

---------

Co-authored-by: ylianst <[email protected]>
Co-authored-by: Copilot <[email protected]>

Author: 3 people

src/docs/devices/ESP-FBot/index.md

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+---
+title: ESP-FBot Battery Integration
+date-published: 2025-12-07
+type: sensor
+standard: global
+board: esp32
+project-url: https://github.com/Ylianst/ESP-FBot
+difficulty: 2
+---
+
+![ESP-FBot](main.png "ESP-FBot Battery Integration")
+
+## Description
+
+ESP-FBot is an ESPHome custom component for locally monitoring and controlling portable power stations via Bluetooth.
+It provides fast local management without cloud services, making it ideal for outage situations.
+
+Compatible with battery systems that use the "BrightEMS" application, including:
+
+- **FOSSiBOT**: F3600 Pro, F2400
+- **SYDPOWER**: N052, N066
+- **AFERIY**: P210 (2400W/2048Wh), P310 (3300W/3840Wh)
+
+The ESP32 device communicates with the battery using Bluetooth and relays data locally via WiFi to Home Assistant.
+
+## Features
+
+- **Battery Monitoring**: Real-time battery state of charge (%), remaining capacity (kWh), and time remaining
+- **Power Monitoring**: Track input power, output power, system consumption, and total power flow
+- **Output Control**: Switch USB ports, DC outputs, AC inverter, and light on/off
+- **Home Assistant Integration**: All sensors and controls automatically discovered in Home Assistant
+- **Auto-reconnect**: Handles BLE disconnections and automatically reconnects
+
+## Requirements
+
+- A compatible battery that uses the "BrightEMS" application (no cloud pairing needed)
+- [Home Assistant](https://www.home-assistant.io/) with [ESPHome](https://esphome.io/)
+- ESP32 device (M5Stack ATOM Light, M5StickC PLUS2, ESP32-WROOM, ESP32-DevKit, etc.)
+- The ESP32 device must be within Bluetooth range of the battery (typically 10-30 feet)
+
+## Getting Started
+
+### 1. Get the Battery's MAC Address
+
+Find the Bluetooth LE MAC address of your battery by searching for a device that starts with "FOSSIBOT" or "POWER".
+
+**On Windows**: Use [BluetoothLEView](https://www.nirsoft.net/utils/bluetooth_low_energy_scanner.html)
+
+The MAC address will look like `A1:B2:C3:D4:E5:F6`.
+
+### 2. Installation
+
+1. Use the example configuration below as a starting point
+2. Update WiFi credentials, API encryption key, and Battery MAC address
+3. Flash to your ESP32 device
+
+## Configuration
+
+```yaml
+esphome:
+  name: bigbattery
+  friendly_name: Big Battery
+  comment: "AFERIY 3840Wh Portable Power Station"
+
+esp32:
+  board: esp32dev
+  framework:
+    type: esp-idf
+
+# Enable Home Assistant API
+api:
+  encryption:
+    # key: "your_api_encryption_key_here"  # Generate your own key using ESPHome dashboard
+
+wifi:
+  ssid: !secret wifi_ssid
+  password: !secret wifi_password
+
+# Enable logging
+logger:
+  level: WARN
+
+# Load external component from GitHub
+external_components:
+  - source: github://ylianst/esp-fbot
+    refresh: 10s
+
+# BLE Client configuration
+ble_client:
+  - mac_address: "AA:BB:CC:DD:EE:FF"  # Replace with your battery's MAC address
+
+# Configure the FBot component
+fbot:
+  id: my_fbot
+  polling_interval: 5s  # How often to poll for updates (default: 2s)
+
+# Binary sensors for connection and output states
+binary_sensor:
+  - platform: fbot
+    fbot_id: my_fbot
+    connected:
+      name: "Connected"
+    battery_connected_s1:
+      name: "Connected S1"
+    battery_connected_s2:
+      name: "Connected S2"
+    usb_active:
+      name: "USB Active"
+    dc_active:
+      name: "DC Active"
+    ac_active:
+      name: "AC Inverter Active"
+    light_active:
+      name: "Light Active"
+
+# Sensors for battery and power readings
+sensor:
+  - platform: fbot
+    fbot_id: my_fbot
+    battery_level:
+      name: "Battery"
+      id: battery_percent
+    battery_s1_level:
+      name: "Battery S1"
+      id: battery_percent_s1
+    battery_s2_level:
+      name: "Battery S2"
+      id: battery_percent_s2
+    input_power:
+      name: "Input Power"
+      id: input_watts
+    output_power:
+      name: "Output Power"
+      id: output_watts
+    system_power:
+      name: "System Power"
+      id: system_watts
+    total_power:
+      name: "Total Power"
+      id: total_watts
+    remaining_time:
+      name: "Remaining Minutes"
+      id: remaining_minutes
+  # Convert remaining time from minutes to hours
+  - platform: template
+    name: "Remaining Hours"
+    lambda: |-
+      if (id(remaining_minutes).has_state()) {
+        return id(remaining_minutes).state / 60.0;
+      }
+      return 0.0;
+    unit_of_measurement: "h"
+    accuracy_decimals: 1
+    device_class: duration
+    state_class: measurement
+    update_interval: 5s
+  # Net power (positive = charging, negative = discharging)
+  - platform: template
+    name: "Net Power"
+    lambda: |-
+      if (id(input_watts).has_state() && id(output_watts).has_state()) {
+        return id(input_watts).state - id(output_watts).state;
+      }
+      return 0.0;
+    unit_of_measurement: "W"
+    accuracy_decimals: 0
+    device_class: power
+    state_class: measurement
+    update_interval: 5s
+
+# Switches to control outputs
+switch:
+  - platform: fbot
+    fbot_id: my_fbot
+    usb:
+      name: "USB Output"
+      id: usb_switch
+    dc:
+      name: "DC Output"
+      id: dc_switch
+    ac:
+      name: "AC Inverter"
+      id: ac_switch
+    light:
+      name: "Light"
+      id: light_switch
+```
+
+## Battery Factory Reset
+
+To remove your battery's WiFi connection to the cloud, you can perform a factory reset.
+Press and hold the **DC button**, **light button**, and **USB button** simultaneously for
+about 5 seconds until you hear a beep.
+
+## Links
+
+- [GitHub Repository](https://github.com/Ylianst/ESP-FBot)
+- [M5 ATOM Extras](https://github.com/Ylianst/ESP-FBot/blob/main/docs/m5atom-extras.md) - Additional features