ALAZ SmartSystems Technology — ESP-NOW, Edge AI, TSQ Database

State-of-the-Art Engineering

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Zero-Crash Architecture

WDT-safe lock-free Ring Buffers. If memory fills up, our Degrade Guardrails automatically step down logging rates to keep the automation alive, instead of rebooting.

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Smart Redundant ACKs

Overcoming harsh RF noise. Relays queue and send rapid duplicate ACKs (ACKSM1) only if the initial transmission fails, eliminating ghost timeouts entirely.

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Command Coalescing

Built-in command spam protection. Rapid identical commands are intelligently coalesced into a single transmission at the Gateway, preventing network floods.

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Premium Insight UI

Beautiful TSQ Facade data grids on LVGL 8.3 touchscreens seamlessly merge live high-speed RAM data with long-term SD card metrics.

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100% Local & Cloud-less

Immune to internet outages. Zero cloud reliance. Total data privacy and ultra-low latency command execution, running completely on your edge network.

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Zero-Leak Memory

Rock-solid C++ memory handling utilizing stack snprintf buffers over heavy heap string concatenations. Built for 24/7/365 extreme uptimes.

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TSQ Historian Engine

A custom Time Series Queue dynamically fetching from RAM and aggregating 1h/6h/24h SD-Card metrics to flawlessly draw 2x3 grid historical touch charts.

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REST Diagnostics API

Developer-ready built-in endpoints to monitor exact radio statistics, deep node health registries, and WDT-safe background event logs remotely.

Edge Node Intelligence

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Auto-Lock Security

Nodes deploy an offline dark-themed setup portal, and permanently lock it down after configuration to secure the RF network and save battery.

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Smart Redundant ACK (ACKSM1)

Relays queue and rapid-fire duplicate ACKs intelligently only if the radio layer reports RF noise interference, eliminating ghost timeouts.

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Anti-Spam Protection

Built-in edge rate limiting immediately suppresses automated or manual rapid-fire command spam, safeguarding the mesh from flooding.

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Edge VPD Climate Engine

Instead of raw data passthrough, sensor nodes actively compute exact Vapor Pressure Deficit (VPD) formulas to measure true plant transpiration potential on the fly.

ESP-NOW Decentralized Mesh Topology

ALAZ CORE GW 1 GW 2 GW 3
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Climate From The Plant's Perspective: Leaf VPD Engine

The ALAZ Sensor Node doesn't just measure air humidity — it calculates the true Vapor Pressure Deficit (VPD) at the leaf surface using the Tetens equation and classifies plant stress status in real-time.

VPD (kPa) Status Plant Response
< 0.4 Too Low Over-humid, disease risk
0.4 – 0.8 Low Propagation / seedling phase OK
0.8 – 1.2 ✓ Ideal Vegetative growth — target zone
1.2 – 1.6 Moderate Flowering stage acceptable
1.6 – 2.0 High Stress onset, increase irrigation
> 2.0 Too High Critical stress, yield loss
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Leaf Surface VPD

Beyond air humidity, leaf surface temperature is measured to calculate what the plant is actually experiencing — no misleading air-only RH readings.

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Automatic Setpoint Generation

Enter a target VPD and the engine automatically calculates the optimal Temperature + Humidity setpoints. One parameter, complete climate prescription.

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Tetens Equation Based

Industry-standard psychrometric formulas. Accuracy guaranteed from -40°C to +50°C. A 5-stage self-test suite runs on every boot.

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Proven Reliability & Performance

While competitors make promises, ALAZ has real stress-test results. Every number is sourced directly from the firmware codebase and production test environment.

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4-Level Memory Guardrail

As memory pressure builds, the system gracefully degrades — it never crashes suddenly.

  • Level 0: Full capacity
  • Level 1: WS broadcast paused (<12KB)
  • Level 2: Poll rate slowed (<10KB)
  • Level 3: SD log slowed (<8KB)
  • Level 4: Controlled reboot — zero data loss
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Stress Test: 0 Lost Commands

100 commands / 2 second burst, 1000 iterations, 30 minutes continuous:

Duplicate Commands 2.3% → 0%
Lost Commands 0.8% → 0%
48h Uptime Crashes 3/2880 requests → 0
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90% Heap Churn Eliminated

String concatenation → snprintf migration eliminates 25KB/min heap churn.

  • v3.5.16: Crash within 90 seconds 💀
  • v3.5.20: Unstable heap ⚠️
  • v3.5.22+: Delta=0, rock solid ✅
Metric Target Actual Status
CPU Usage (idle)<10%2-5%✅
CPU Usage (active)<30%10-15%✅
Free Heap>200KB240KB✅
ESP-NOW Latency<20ms5-15ms✅
WebSocket Latency<100ms20-50ms✅
Command Latency (end-to-end)<50ms5-10ms✅
Production Readiness Score—92/100 (A-)✅

Sensory Precision & Actuator Control

The ALAZ Nodes are the nerve endings of the greenhouse. Compact, rugged, and highly intelligent. Comprising both Sensor nodes for environmental telemetry and Relay nodes for hardware execution. Equipped with test simulation modes.

ALAZ Sensor Node
ALAZ Sensor Node
ALAZ Relay Node
ALAZ Relay Node