Introduction
The DPS368 is a compact sensor device capable of measuring both temperature and pressure. It is designed to be resistant to dust, humidity, and water, making it suitable for use in small and portable devices such as smartphones and wearables.
The sensor supports both SPI and I2C communication interfaces to access data. Its small size and high reliability make it ideal for modern embedded and IoT applications.
Working / Block Diagram
The DPS368 consists of an internal temperature sensor and a pressure sensor that measure environmental conditions. These analog values are converted into digital form by an internal Analog-to-Digital Converter (ADC).
The chip also includes a Digital Signal Processing (DSP) unit, memory unit, and a digital interface unit. The DSP converts the measured pressure and temperature values into 24-bit digital values for accurate processing and communication.
Two separate pins are used to supply voltage independently to the analog block and digital block, improving stability and performance.
Pin Configuration of DPS368
- Pin 1 – GND: Ground pin, connected to the common ground for all interfaces.
- Pin 2 – CSB: Active low chip select pin. Used in SPI modes. Not used in I2C mode and left open.
- Pin 3 – SDI: Serial Data Input/Output pin used in SPI and I2C communication. For SPI-4 wire, it is used only as data input.
- Pin 4 – SCK: Serial Clock pin used in all interface modes.
- Pin 5 – SDO: Serial Data Output pin. Used in SPI-4 wire and as an interrupt/address select in I2C modes.
- Pin 6 – VDDIO: Digital supply voltage pin for digital blocks and I/O interfaces.
- Pin 7 – GND: Common ground pin for all interfaces.
- Pin 8 – VDD: Supply voltage pin for the analog block.
Applications of DPS368 Sensor
- Used in navigation and tracking systems.
- Implemented in mobile phones and wearable devices.
- Used in airflow control systems.
- Supports drone flight stability.
- Used in medical devices such as smart inhalers.
- Incorporated in smartwatches for fitness tracking, step counting, and fall detection.
- Useful for water level detection systems.
Conclusion
The DPS368 sensor is a powerful, compact, and efficient device used for accurate temperature and pressure measurements. With support for modern communication protocols and a wide range of applications, it is an essential component in smart electronic and IoT-based systems.