GY-21P SI7021+BMP280 Temperature, Humidity, Barometric Pressure Sensor Module

The GY-21P SI7021+BMP280 Temperature, Humidity, Pressure Sensor Module is a compact breakout for measuring atmospheric conditions. It combines temperature, humidity, and barometric pressure sensing in a small PCB-mounted module. The module supports I2C and SPI communication for microcontroller connections. It is designed with low power consumption, high accuracy, and stable measurements. The compact 30x14 mm size makes it easy to mount in space-limited projects.

Features of GY-21P SI7021+BMP280 Temperature, Humidity, Pressure Sensor Module

• Temperature sensing
• Humidity sensing
• Barometric pressure sensing
• I2C and SPI interface support
• Low power consumption
• PCB-mounted construction

Specifications of GY-21P SI7021+BMP280 Temperature, Humidity, Pressure Sensor Module

• Power supply voltage: 1.7-3.6 volts DC
• Interface voltage range: 1.2-5.5 volts DC
• I2C interface: up to 3.4 MHz
• SPI interface: up to 10 MHz
• Humidity: 0-100%
• Pressure: 300-1100 hPa
• Temperature accuracy: ±1 degree Celsius
• Humidity accuracy: ±3%
• Pressure accuracy: ±1 Pascal
• Operating temperature: -40 to +85 degrees Celsius
• Size: 30x14 mm

How to Use GY-21P SI7021+BMP280 Temperature, Humidity, Pressure Sensor Module

1. Connect the module to a microcontroller through I2C or SPI.
2. Provide power within the specified voltage range.
3. Read temperature, humidity, and pressure data from the sensor outputs.

More Info

• The module is soldered to a PCB.
• The module is suitable for compact electronics and robotics projects.