PRECORES LAB • Comprehensive Embedded Server Operations & Web Portal Guide

OPERATIONS WORKFLOW & PORTAL FEATURES 6 PHASES

Pure direct DC barrel power & fallback hotspot boot.

Wi-Fi network linking, Master SSH & hardware sync.

Live CPU, RAM, eMMC health, SoC temperature & PWM fan.

STA + SoftAP dual mode, custom DNS & zero-forwarding.

Ubuntu/Debian/Alpine & 1-Click Docker, Portainer, Pi-hole.

Encrypted .pcl-bak export, browser root console & SSH.

PHASE 03: UNIVERSAL DASHBOARD & REALTIME HARDWARE VITALS

REALTIME TELEMETRY

Access the Universal Dashboard at http://:8080/dashboard.html. The system streams realtime hardware vitals via Server-Sent Events (SSE):

# 1. Live Hardware Telemetry (Streamed every 1s via SSE):

CPU_UTILIZATION: Per-core ARM64 Cortex utilization % and dynamic frequency scaling

RAM_FOOTPRINT: Physical RAM usage, kernel buffer/cache breakdown, and available memory

eMMC_FLASH_LIFE: eMMC flash controller health index, wear-level estimate, and free storage

SOC_TEMPERATURE: Multi-zone thermal sensor readings in degrees Celsius (°C)

PWM_FAN_CONTROL: Smart PWM fan curves actively adjusting speed to prevent thermal throttling

# 2. 1-Click Power Profile Selector:

SILENT_PROFILE: Energy saving mode with lower CPU clocks and silent cooling profile

BALANCED_PROFILE: Balanced performance and thermal curve for standard server duties

PERFORMANCE_PROFILE: Unlocks maximum ARM64 clock limits, optimized for Docker & AI Stacks

• TECHNICAL NOTE: The PreCores Supervisor telemetry stream uses single-marshal serialization to eliminate GC pause overhead, consuming less than 0.5% CPU during high-frequency telemetry.