HARDWARE ARCHITECTURE
ENGINEERED FOR SURVIVAL. ZERO BLOATWARE. PURE UTILITY.
01 / POWER PATH MANAGEMENT
- ▹ Dual-Source: 1.5V AA primary with seamless 3.7V Li-ion fallback.
- ▹ Extreme IQ: TPS61099 boost converter, sleep current < 10μA.
- ▹ Endurance: Duty-cycled polling yields 30-90 days on one AA.
02 / DISPLAY & HAPTICS
- ▹ Zero-Power: MIP/E-ink panel, ~0μA draw during static display.
- ▹ All-Weather UI: 6 fully-sealed tact switches for T9 macro input.
- ▹ Alerts: High-penetration ERM motor & dual-color status LED.
03 / TELEMETRY & NETWORK
- ▹ Cellular IoT: LTE Cat.1 / NB-IoT module utilizing PSM/eDRX.
- ▹ Pure Payload: MQTT protocol, minimizing HTTP overhead.
- ▹ SOS GNSS: Cold-start positioning hardware, strictly off until override.
04 / CRYPTOGRAPHY & PRIVACY
- ▹ Hardware E2EE: AES-GCM / ChaCha20 encryption decrypted locally.
- ▹ Zero-Knowledge Relay: UUID-based ciphertext routing, no logging.
- ▹ Physical Whitelist: NFC/IR proximity key exchange to block spam.