Description
The GY-BMP280 Barometric Pressure & Temperature Sensor Module is a high-precision environmental sensor built around the Bosch BMP280 chip — one of the most accurate and low-power atmospheric pressure sensors available. It measures barometric pressure, altitude, and temperature with exceptional precision over I2C or SPI, making it ideal for weather stations, altitude tracking, drone flight controllers, and indoor climate monitoring projects.
Compatible with Arduino, ESP32, ESP8266, and Raspberry Pi, the BMP280 is widely supported by the Adafruit and official Bosch libraries — making setup quick and beginner-friendly. At just 199 BDT, it is one of the most capable and affordable pressure sensors available in Bangladesh.
⭐ Key Features
High Precision Pressure Sensing
300 to 1100 hPa range — ±1 hPa absolute accuracy
Built-in Temperature Sensor
-40°C to 85°C temperature measurement onboard
Altitude Calculation
Calculate altitude from pressure — up to ±1 metre resolution
I2C and SPI Interface
Choose between I2C (2 wires) or SPI (4 wires) — flexible connectivity
Ultra Low Power
Only 2.7µA in sleep mode — ideal for battery IoT devices
Bosch Chip — Reliable Brand
Bosch BMP280 — industrial-grade MEMS sensor used worldwide
🚀 What Can You Build With the BMP280?
🌤️
Weather Stations
Pressure, temperature and altitude logging
🚁
Drone Altitude Hold
Barometric altitude for flight controllers
🏔️
Altitude Trackers
Hiking and climbing altitude measurement
🌐
IoT Climate Nodes
Send pressure and temperature data to cloud
📊
Indoor Navigation
Floor detection using pressure differential
👤 Who Should Buy This?
🎓 Beginners
Building a weather station or altitude project — Adafruit library makes BMP280 ready in minutes
📚 Students
Environmental sensing projects, altitude measurement and IoT weather dashboard assignments
⚙️ Engineers
Drone flight controllers, indoor navigation systems and pressure-sensitive industrial IoT builds
🛠️ Hobbyists
DIY weather stations, rocket altitude trackers and high-altitude balloon flight data loggers
⚔️ BMP280 vs BME280 vs BMP180 — Which Pressure Sensor Should You Use?
A quick comparison of the most popular Bosch barometric pressure sensor modules
| Feature | THIS ITEM BMP280 GY-BMP280 | UPGRADE BME280 + Humidity | OLDER BMP180 Previous Gen |
|---|---|---|---|
| Pressure Range | 300–1100 hPa | 300–1100 hPa | 300–1100 hPa |
| Temperature | ✅ Yes | ✅ Yes | ✅ Yes |
| Humidity | ❌ No | ✅ Yes | ❌ No |
| Interface | I2C + SPI | I2C + SPI | I2C only |
| Power Consumption | 2.7µA sleep | 3.6µA sleep | Higher |
| Best For | Pressure + altitude + temp | All-in-one weather sensing | Basic pressure reading |
🔧 Features & Specifications
🔧 Library Setup & Quick Start Example
Install Adafruit BMP280 Library
Arduino IDE → Sketch → Include Library → Manage Libraries → Search Adafruit BMP280 → Install. Also install Adafruit Unified Sensor when prompted.
Wire the Module
VCC → 3.3V, GND → GND, SDA → SDA (GPIO21 on ESP32 / A4 on Arduino), SCL → SCL (GPIO22 on ESP32 / A5 on Arduino).
BMP280 Read Pressure, Temperature & Altitude
#include <Wire.h> #include <Adafruit_BMP280.h> Adafruit_BMP280 bmp; // I2C mode void setup() { Serial.begin(115200); if (!bmp.begin(0x76)) { // Try 0x77 if not found Serial.println("BMP280 not found! Check wiring."); while(1); } Serial.println("✅ BMP280 Ready!"); } void loop() { Serial.print("Temperature: "); Serial.print(bmp.readTemperature()); Serial.println(" °C"); Serial.print("Pressure: "); Serial.print(bmp.readPressure() / 100.0F); Serial.println(" hPa"); Serial.print("Altitude: "); Serial.print(bmp.readAltitude(1013.25)); // Sea level hPa Serial.println(" m"); Serial.println("---"); delay(2000); }
If the sensor is not found, change 0x76 to 0x77 — the I2C address depends on the SDO pin state.
❓ Frequently Asked Questions
📦 Package Includes
1 × GY-BMP280 Barometric Pressure & Temperature Sensor Module
Pre-soldered headers — jumper wires not included
💬 GY-BMP280 Price in BD & Why Buy From Dream RC?
The GY-BMP280 Barometric Pressure Sensor Module price in BD is 199 BDT. Buy the BMP280 pressure sensor in Bangladesh from Dream RC — your trusted source for environmental sensors and IoT components at the best price with fast nationwide delivery and Cash on Delivery.
Pay after receiving
Quick processing
69 BDT — 24 hrs
129 BDT — 24–72 hrs
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