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BME680 Humidity, Pressure, Temperature and Gas Sensor Probe MRS Type -7Semi

BME680 Humidity, Pressure, Temperature and Gas Sensor Probe MRS Type -7Semi

₹1,409.00Price
 
🔍 What this sensor is
The 7Semi BME680 Sensor Probe (MRS Type) is a 4-in-1 environmental sensor that measures:
  • 🌡️ Temperature
  • 💧 Humidity
  • 🌪️ Atmospheric Pressure
  • 🌫️ Gas (VOC / Air Quality)
👉 It’s based on Bosch BME680, one of the most popular all-in-one environmental sensors
🧠 Core Concept (VERY IMPORTANT)
👉 This sensor = “environmental + air quality combo”
Unlike SHT40 (only temp + humidity):
➡️ BME680 gives:
  • Weather data (temp + humidity + pressure)
  • Air quality (VOC-based gas sensing)
👉 One sensor = multiple parameters in one chip
⚙️ Key Specifications
  • Temperature Range: -40°C to +85°C
  • Humidity Range: 0–100% RH
  • Pressure Range: 300–1100 hPa
  • Gas Detection: VOC gases (air quality)
  • Interface: I²C / SPI
  • Operating Voltage: ~1.7V–3.6V
  • I2C Address: 0x76 / 0x77
⚡ What it can detect
🌡️ Environmental data
  • Temperature
  • Humidity
  • Air pressure
🌫️ Air quality
  • VOC gases (alcohol, smoke, pollution)
👉 It can also estimate:
  • IAQ (Indoor Air Quality Index)
  • eCO₂ (estimated)
⚙️ Working Principle
  • Uses MEMS sensor technology
  • Gas sensor uses heated MOX element
👉 Process:
  • Gas interacts with sensor
  • Resistance changes
  • Algorithm converts to:
    • IAQ
    • VOC level
➡️ Sensor creates a “gas fingerprint” for air quality
🔌 Probe Version (MRS Type – Important)
👉 This version is industrial-style probe, not just PCB
Features:
  • 🧱 Metal housing (dust protection)
  • 🌬️ Breathable filter membrane
  • 🔌 1-meter cable
  • 🔧 4-wire I2C output
➡️ Better for:
  • Harsh environments
  • Outdoor/industrial use
🔌 Typical Wiring (Probe)
  • Red → VCC
  • Black → GND
  • Yellow → SDA
  • Green → SCL
🧠 Key Features
  • ✔️ 4-in-1 sensor (very powerful)
  • ✔️ Compact + low power
  • ✔️ Air quality + environment combined
  • ✔️ Digital output (easy integration)
  • ✔️ Industrial probe option available
💡 Applications
  • 🌦️ Weather stations
  • 🏠 Smart home automation
  • 🌬️ Indoor air quality monitoring
  • 🌾 Smart agriculture
  • 🏭 Industrial sensing
  • 📊 IoT environmental logging
⚠️ Important Notes (VERY IMPORTANT)
❗ 1. Not true gas measurement
  • ❌ Does NOT give exact ppm of gases
  • ✅ Gives VOC-based air quality index
❗ 2. Needs calibration time
  • Burn-in time: ~20 minutes+
  • Improves over time
❗ 3. Sensitive to environment
  • Humidity & temperature affect gas readings
👉 Compensation improves accuracy
❗ 4. Self-heating issue
  • Gas heater can slightly increase temperature reading
👉 Keep away from heat-sensitive placement
🆚 BME680 vs Other Sensors
SensorParametersAccuracyUse
SHT40Temp + Humidity⭐ HighSimple
ENS160AQI + eCO₂⭐ HighAir quality
SGP40VOC IndexMediumVOC trend
BME680⭐ 4-in-1GoodAll-in-one
👍 When to use this
Use BME680 if you want:
  • All-in-one environmental sensor
  • Compact IoT system
  • Weather + air quality together
  • Fewer modules (space-saving)
👎 When NOT to use
Avoid if:
  • You need high accuracy gas measurement
  • You need true CO₂ sensor (use SCD40)
  • You want best-in-class accuracy per parameter
🧠 Final Understanding
👉 This sensor = “all-in-one environmental + air quality sensor”
👉 Best for compact IoT systems with multiple data needs
🚀 Pro Tip (Very Useful)
👉 Best combo (advanced system):
  • BME680 → All-in-one basic sensing
  • SHT41 → High-accuracy temp/humidity
  • ENS160 → Advanced AQI
➡️ Together = professional-grade air monitoring system 🔥
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