BME280 Pressure + Temp + Humidity
by Bosch / GY-BME280
SKU: PSA-CMP-BME280
No reviews yetTypical India street price
₹120–₹280
Weather trio on one chip — better than BMP280 + DHT combo.
Interface: I2C / SPI
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Concept
MEMS pressure + humidity capacitor + temperature, digital.
A little theory
I2C 0x76/0x77. Altitude from pressure vs sea-level reference. In the classroom, treat BME280 Pressure + Temp + Humidity as a beginner part using I2C / SPI. Typical India street price is about ₹120–₹280. Always verify voltage and pin labels on your exact module — silk screens vary across clones. Start with a datasheet or trusted learn guide, power the part correctly, share GND with the MCU, and test with a simple blink/read sketch before building the full project. Measure voltages with a multimeter when something fails, and keep actuator current off the MCU regulator.
How it works in a project
Adafruit_BME280 begin(0x76) then read T/P/H.
Classroom & project use
- Weather station
- Altimeter drone
- Classroom climate
Buying in India
Precautions
- Share a common GND with the microcontroller
- Verify polarity and voltage before powering the circuit
Specifications
| Chip | BME280 |
| Interface | I2C |
| Category | Sensors |
| Difficulty | Beginner |
| Voltage | 3.3–5V module |
Pinout
VCC | GND | SCL | SDA (confirm address with I2C scanner)
