LinkPower Companion

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The LinkPower app is a native iOS companion for the PeakDo Link-Power family of portable power stations (LP1, LP2, LP3, Pod, Ultra, LP+). Built with SwiftUI and CoreBluetooth, the LinkPower app gives you live battery telemetry, DC port control, USB-C power-limit configuration, and on-device scheduling — all over Bluetooth, with zero third-party dependencies.

This is an unofficial, community-built application. It is not affiliated with, endorsed by, or supported by PeakDo Tech. Inc. Use at your own risk.

Install

Get the LinkPower app from the App Store: https://apps.apple.com/us/app/linkpower-companion/id6762404390

Learn more at https://linkpower.app.

Screenshots

Screen	Description
Live Charging / Discharging	Real-time power flow view showing input/output state, wattage, and battery status
Connection	BLE scanning with demo mode option
Battery Dashboard	Live battery level, capacity, voltage, current, and remaining time
DC Port Controls	Toggle DC output, monitor power/voltage/current, bypass mode
Power Limits	Configure global, input, output, and runtime USB-C power limits
Timer Editor	Create scheduled on/off timers (one-shot, daily, weekly, monthly)
System Settings	Device info, date sync, restart, and shutdown controls

Features

• BLE Device Connection - Scan, connect, auto-reconnect to Link-Power devices (LP1, LP2, LP3, Pod, Ultra, LP+)
• Real-Time Monitoring - Live battery level, capacity, voltage, current, and remaining time via BLE notifications
• DC Port Control - Enable/disable DC output, monitor power/voltage/current, DC bypass toggle
• USB-C Port Monitoring - Charging/discharging status, power readings, temperature display, output control
• DC On/Off Scheduler - Create up to 6 scheduled timers (one-shot, daily, weekly, monthly) for automated DC port control
• USB-C Power Limits - Configure global, input, output, and runtime power limits (30W - 100W)
• DateTime Sync - Sync your phone's clock to the device
• Expert & Dev Modes - Advanced controls including device restart, shutdown, factory mode, and BLE PIN configuration

Supported Devices

Device	Model String	Key Features
Link-Power 1 (LP1)	BP4SL3V1	Battery, DC, USB-C, shutdown, scheduled control
Link-Power 2 (LP2)	BP4SL3V2	Battery, DC, USB-C, DC bypass, DC input
Link-Power 3 (LP3)	BP4SL3V3	LP3 protocol; features from firmware flags, Wi-Fi & cloud
Link-Power Pod	BP4SL3V4	LP3 protocol (unverified on hardware)
Link-Power Ultra	BP4SL3V6	LP3 protocol (unverified on hardware)
Link-Power Max	BP4SL3V7	LP3 protocol (unreleased; unverified)
Link-Power+ (LP+)	BP4SL3	DC port control

Requirements

• iOS 17.0+
• Xcode 16.0+
• A PeakDo Link-Power device

Architecture

The app follows MVVM with @Observable (iOS 17+), uses CoreBluetooth directly, and has zero third-party dependencies.

Peakdoo/
├── Models/          # BLE protocol, device state, timer model, settings
├── Services/        # BLE manager, device connection, data parser
├── ViewModels/      # Connection & dashboard view models
├── Views/
│   ├── Connection/  # BLE scanning & device picker
│   ├── Dashboard/   # Main monitoring UI, cards, timer editor
│   └── Components/  # Reusable UI components
├── Design/          # Theme constants (colors, typography, spacing)
└── Extensions/      # Data parsing, color, view modifiers

BLE Protocol

The app communicates with Link-Power devices over a custom BLE service (0x5301) with characteristics for:

• Device commands (0x4302) - DC control, power limits, timers, restart
• Battery info (0x4303) - Real-time battery notifications
• DC port status (0x4304) - Real-time DC port notifications
• USB-C port status (0x4305) - Real-time Type-C notifications
• OTA mode (0x4301) - Device mode detection

Standard BLE services are also used: device_information (model, firmware version) and current_time (datetime sync).

Building

1. Clone the repository
2. Open Peakdoo.xcodeproj in Xcode
3. Select your development team in Signing & Capabilities
4. Build and run on a physical iOS device (BLE is not available in Simulator)

Design

Clean Minimal Light design inspired by Apple Health and Home apps:

• White cards with subtle shadows on a light grey background
• SF Pro Rounded typography for readings
• SF Symbols throughout
• Spring animations and haptic feedback
• Color-coded status indicators (green = charging, orange = discharging, pink = bypass)

Disclaimer

THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND. This is an unofficial application and is not affiliated with, endorsed by, or supported by PeakDo Tech. Inc. The authors and contributors take no responsibility for any damage, data loss, or device malfunction that may result from using this application. Use entirely at your own risk.

Interacting with device firmware (especially advanced features like scheduled timers, power limits, and device restart/shutdown) carries inherent risk. Always ensure your device has adequate power before performing any operations.

Links

• Website: https://linkpower.app
• App Store: https://apps.apple.com/us/app/linkpower-companion/id6762404390
• Privacy Policy: https://linkpower.app/privacy
• Terms of Service: https://linkpower.app/terms
• Source: https://github.com/anglinb/LinkPower-Companion

License

This project is licensed under the MIT License - see the LICENSE file for details.