BME280 Sensor

BME280 Sensor

The BME280 is a highly integrated environmental sensor developed by Bosch Sensortec. It combines temperature, pressure, and humidity sensing in a single compact package, making it ideal for weather monitoring and IoT applications. With support for both I2C and SPI interfaces, the sensor is flexible and easy to integrate into microcontroller-based systems such as STM32, Arduino, ESP8266, and ESP32. Its low power consumption makes it suitable for battery-powered devices, while the high precision ensures reliable performance even in demanding applications.

BME280 Sensor

Key Features:

  • Measures temperature, pressure, and humidity in one device
  • Supports I2C (up to 3.4 MHz) and SPI (up to 10 MHz) communication
  • Wide measurement ranges:
  • Temperature: -40 °C to +85 °C
  • Pressure: 300 hPa to 1100 hPa
  • Humidity: 0% to 100% RH
  • High resolution: up to 20-bit for pressure/temperature and 16-bit for humidity
  • Very low power consumption, ideal for portable/IoT projects
  • Compact package: 2.5 × 2.5 × 0.93 mm

Applications:

  • Weather stations and climate monitoring systems
  • IoT devices for smart homes and smart cities
  • Altitude tracking in drones and navigation devices
  • Indoor air quality monitoring
  • Wearable devices for health and fitness tracking
  • Environmental data logging for research and agriculture

R307 Fingerprint Sensor

R307 Fingerprint sensor

R307 Fingerprint Sensor Module

The R307 Fingerprint Sensor is a popular biometric module designed for secure and reliable fingerprint recognition. It combines an optical fingerprint sensor with a powerful processor to capture, store, and match fingerprints with high accuracy. Its compact design and easy serial interface make it suitable for a wide range of embedded applications.

R307

Key Features:

  • Optical fingerprint recognition with high image quality
  • Stores up to 1,000 fingerprints in its internal memory
  • UART (TTL) interface for easy microcontroller communication
  • Fast fingerprint matching and identification
  • Compact, durable, and widely supported module

Applications:

  • Biometric attendance systems
  • Door locks and access control
  • Safe and locker security
  • Identity verification in IoT projects
  • DIY electronics and Arduino/STM32 projects