DPS368 : Pin Diagram & Its Applications

• DPS368 is a sensor device that can measure both temperature and pressure.
• The DPS368 sensor is durable in water, dust, and humidity.
• It is in very small size so, it is suitable for a smartphone application.
• It interfaces with SPI and I2C to access the data.

Working/Block diagram of DPS368

• It contains the temperature sensor and pressure sensor which measure both temperature and pressure.
• The ADC is an analog to digital converter it converts the analog value given by the sensor into a digital value.
• This chip is also used as a digital signal processing unit, a memory unit, and a digital interface unit.
• The DSP unit converts the pressure and temperature values into 24- bit values.
  There are two separate pins provided to supply voltage to analog and digital blocks separately.

Pin Configuration of DPS368

• Pin 1 – GND- is the ground pin. This pin is connected to the ground for both interfaces.
• Pin 2 – CSB – is the Active low Chip Select pin. It is used as a chip select pin when SPI-3 wire, SPI-4 wire, and SPI-3 wire with the interrupt are used. This pin is not used and is left open when the I2C interface is used.
• Pin 3 – SDI- is the serial data IN/OUT pin. This pin is used for serial data IN/OUT for SPI- 3 wire, SPI-3 wire with interrupt, I2C, and I2C with interrupt interfaces. For SPI-4 wire it is used as only serial data IN.
• Pin 4 – SCK – is the serial clock pin. This pin is used as a serial clock for all types of interfaces.
• Pin 5 – SDO- is the serial data output pin. This pin is not used for the SPI-3 wire interface. This pin is used for interrupt in SPI-3 wire Interrupt interface and as serial data out for SPI-4 wire interface. I2C interface uses this pin to set the least significant bit of the device address whereas I2C with interrupt interface uses it for both to set the least significant bit of device address and Interrupt.
• Pin 6 – VDDIO- is the digital supply voltage pin. This pin is used as a digital supply voltage pin for the digital blocks and Input-Output interfaces.
• Pin 7 – GND- is the ground pin. This pin is connected to the ground during all the interfaces.
• Pin 8 – VDD- is the supply voltage pin. This pin is used to supply voltage to the analog blocks.

Application of DPS368

• This is used as an active navigation and tracking system.
• It is used in mobile phones and wearable devices.
• This sensor is used as an Airflow control system.
• We can use drones for flight stability.
• DPS368 is used in medical devices such as smart inhalers.
• It is used in smartwatches to measure fitness, step counting, and also for fall detection.
• This sensor is also used for water level detection.