V2 : Poultax climate controller

Main Controller
Item    Specification
Model    ESP32 Dual-Core
Processor    Xtensa LX6 @ 240 MHz
RAM    520 KB SRAM
Flash    4 MB
Wireless    Wi-Fi 802.11 b/g/n 2.4 GHz / Bluetooth 4.2
Ammonia Sensor (MQ-137)
Item    Specification
Detection Range    5 – 500 ppm
Operating Voltage    5V DC
Response Time    ≤ 30 seconds
Preheat Time    ≥ 24h (first use) / ≥ 1 min (normal start)
Temp & Humidity (DHT22)
Item    Specification
Temperature    -40°C to +80°C (±0.5°C)
Humidity    0–100% RH (±2%)
Relay Module (JQC3F-05VDC-C)
Item    Specification
Coil Voltage    5V DC
Max Load    10A / 250VAC | 10A / 125VAC
Certifications    UL + CQC
Power Supply
Item    Specification
Input    220V AC / 50Hz
Output    5V DC (via AC-DC converter module)
3. Relay & Exhaust Fan Wiring

Warning: Wiring involves 220V AC. Must be performed by a qualified electrician.

Component    Device Pin    Relay / Fan Pin    Note
Power    220V AC IN    AC-DC Module    220V → 5V DC
ESP32 (VCC)    5V    Relay Coil +    Coil: 5V DC
ESP32 (GND)    GND    Relay Coil –    Common GND
ESP32 (Ctrl)    GPIO Pin    Relay IN (Signal)    Control pin
Exhaust Fan    220V AC    COM → NO    Max 10A/250VAC
4. Software Specifications — V2 Platform

In this version the device connects to the syntax IoT cloud platform via the internet after providing us with the Wi-Fi network name and password. Installation and setup are performed by the syntax IoT team.

Feature    Description
Live Dashboard    Real-time readings on platform and browser
Remote Monitoring    Monitor data from anywhere via the syntax IoT platform
Sensor Calibration    Calibrate sensors via platform or web interface
Day / Night Mode    Auto-switch alert thresholds between day and night
Engineer Log    All changes logged on platform with engineer name & timestamp
Excel Export    Export reading logs as Excel from platform or browser
Fan Control    Auto or manual fan control — remote control available
Alerts    Platform alerts when thresholds are exceeded
Connectivity    Wi-Fi — device connects to syntax IoT platform via internet
5. V1 vs V2 Comparison
Feature    V1 — Web Server    V2 — Platform
Connectivity    Local network only    Internet + syntax platform
Remote Monitoring    Not available    Available anywhere
Notifications    No    Yes — on platform
Local Dashboard    Yes — browser    Yes — browser + platform
Excel Export    Yes    Yes
Engineer Log    Yes    Yes
Day/Night Mode    Yes    Yes
Internet Required    No    Yes
Installation    Client connects directly    syntax sends team
6. Installation Requirements — V2
Item    Requirement
Wi-Fi Network    2.4 GHz — network name and password required
Internet    Stable internet connection at installation site
Installation    Done by syntax IoT team after receiving network details
Platform Account    Created by syntax IoT upon delivery
7. Operating Conditions
Item    Specification
Operating Temp    -10°C to +60°C
Humidity    5% – 90% RH (non-condensing)
Altitude    ≤ 2000m
Environment    Indoor
Protection    IP30