STATION: ESP32-RAIL-AIR-MASTER

Atmospheric Equilibrium Optimal.

Real-time monitoring across particulate dispersion, optical greenhouse gases, volatile organic compounds, and industrial chemical precursors.

ATOMIC TIME (IST) 2026-09-22 23:30:00
CLOCK SOURCE DS3231 TCXO
HARDWARE WI-FI RajibA7 (-58 dBm)
MICROSD LOGS #142 Records
US-EPA AQI 42 GOOD
Dominant: PM2.5
SUBSYSTEM 01

Plantower PMS7003 Laser Particulates

UART2 (GPIO 16/17)
FINE PARTICLES
14 µg/m³
PM2.5 Atmospheric
ULTRAFINE
8 µg/m³
PM1.0 Atmospheric
COARSE DUST
22 µg/m³
PM10 Atmospheric
0.1L AIR SAMPLE PARTICLE COUNT DISTRIBUTION ~1,842 total
1,240 >0.3µm
412 >0.5µm
142 >1.0µm
38 >2.5µm
8 >5.0µm
2 >10µm
SUBSYSTEM 02 & 04

Dual NDIR CO₂ & SGP30 MOX

UART1 + I²C
TRUE OPTICAL NDIR (MH-Z19C)
512 ppm
Optimal Indoor
SGP30 eCO₂ 538 ppm
CROSS DELTA (Δ) +26 ppm
TOTAL VOC (TVOC) 118 ppb
RAW H₂ / ETHANOL 13.2k / 14.1k
Active SGP30 Dynamic Humidity Compensation: 13.4 g/m³
SUBSYSTEM 09

Winsen ZE08-CH₂O Formaldehyde

DAC:32 + PWM:33
0.024 mg/m³
19.5 ppb
WHO EXCELLENT (<0.03 mg/m³)
Analog DAC (32x eFuse): 0.408 V
Hardware PWM (1004ms): 12.4 ms (1.2%)
SUBSYSTEM 08

Alphasense 4-Gas Electrochemical Front-End

ADC1 (GPIO 34, 35, 36, 39)
NO₂ Nitrogen Dioxide GPIO 34
16.4 ppb
WHO Std: 21 ppb
CO Carbon Monoxide GPIO 35
240 ppb
WHO Std: 3500 ppb
O₃ Ozone GPIO 36
9.2 ppb
WHO Std: 50 ppb
SO₂ Sulfur Dioxide GPIO 39
3.8 ppb
WHO Std: 15 ppb
SUBSYSTEM 03

Bosch BME680 Environmental Core

I²C (0x77 / 0x76)
TEMPERATURE
28.4 °C
RELATIVE HUMIDITY
64.8 %
BAROMETRIC PRESSURE
1013.2 hPa
MOX HEATER GAS RES
92.4 kΩ
Dew Point: 21.2 °C
VPD: 1.36 kPa
Abs Hum: 17.8 g/m³
SUBSYSTEMS 05, 06 & 07

System Diagnostics & Storage Vault

VSPI + I²C
MicroSD FAT32 MOUNTED
File: /rail_air_master_new.csv Cadence: 30.0s interval Total Writes: 142
Firebase RTDB STREAMING
Project: envairplus Path: /RailAir/Live Live Syncs: 426
ESP32 DevKit V1 HEALTHY
Free Heap: 276 KB System Uptime: 01h 14m OLED Carousel: 7 Screens (0-6)
2.4 GHz 802.11b/g/n LOCKED
SSID: RajibA7 RSSI: -58 dBm (Strong) ADC1 RF Isolation: Active (Zero Conflict)
HIGH-RESOLUTION TELEMETRY

Real-Time Sensor Dynamics

MISSION CONTROL FEED

Live Telemetry Hex & JSON Stream

[SYSTEM] EnvAir+ Telemetry Dashboard Initialized.
[FIREBASE] Connected to https://envairplus-default-rtdb.asia-southeast1.firebasedatabase.app/
[STREAM] Real-time hardware telemetry receiver initialized for /RailAir/Live.