VanAccess BMS Monitor

VanAccess is an open-source Android app for monitoring LiFePO4 battery systems and power devices over Bluetooth Low Energy (BLE).

Features:
* Live BMS dashboard with state of charge, voltage, current, power, and temperature
* Individual cell voltage bar chart with min/max/delta highlighting
* Cycle count, state of health, protection flags, and FET status
* Victron SmartSolar MPPT charger monitoring via encrypted advertisements
* Victron Orion DC-DC converter monitoring
* Ai-Tanker switch panel relay control
* BLE device scanner with signal strength display
* Auto-reconnect with foreground service for background operation
* Debug tools: GATT dump, raw packet logging, manual hex commands
* Temperature display in Celsius or Fahrenheit

Supported protocols:
* JBD/Xiaoxiang BMS protocol (PowerQueen, LiTime, and other Chinese LiFePO4 batteries)
* Victron AES-128-CTR encrypted advertisement protocol
* Ai-Tanker switch panel GATT protocol

This app is read-only and never modifies BMS settings. It is not affiliated with any hardware manufacturer.