SMART ID CARD
Description
The badge is a wearable RTLS (Real-Time Location System) employee ID tag built around the Dialog Semiconductor DA14531 Bluetooth Low Energy SoC. It runs the ATLAS Lite RTLS profile for indoor positioning and can dynamically switch between two Bluetooth roles — SPS (Serial Port Service, for two-way data/config) and Atlas Beacon (one-way broadcast for location tracking) — from the same radio stack. An E-Ink display gives an always-visible, zero-static-power ID/status screen, and the whole unit runs off a single-cell rechargeable Li-Po battery with extended sleep enabled for long runtime between charges.
Features
- Real-time indoor positioning via BLE ATLAS Lite RTLS profile
- Dual-role operation: switches between SPS (bidirectional serial link) and Atlas Beacon (broadcast-only) modes
- Extended sleep mode for multi-week+ battery life on a single charge
- E-Ink display — always visible, draws power only on refresh
- Rechargeable single-cell Li-Po battery
- Compact wearable badge form factor (clip/lanyard compatible)
Software Features
- BLE stack + ATLAS Lite RTLS profile integration on DA14531 SDK
- Runtime role-switching logic (SPS ↔ Beacon) — triggered by button, timeout, or host command
- Power management: deep/extended sleep scheduling, wake-on-event (button, BLE, timer)
- E-Ink display driver with partial/full refresh control to minimize power draw
- Battery voltage monitoring / state-of-charge estimation
- Over-the-air (OTA) or SPS-based configuration and firmware updates (if implemented)
- Advertising interval and beacon payload configuration for RTLS positioning accuracy
Block Diagram
