Pressure 2 Click

How does it work?

Pressure 2 Click is based on the MS580314BA01-00, a high accuracy, low-power, and low noise 24-bit absolute pressure/altitude sensor from TE Connectivity Measurement Specialties. The MS580314BA01-00 combines an ultra-low power 24-bit ΔΣ ADC with internal factory-calibrated coefficients and a high linearity pressure sensor to optimize current consumption and conversion speed while providing different operation modes and a precise digital 24-bit pressure and temperature value. The MS580314BA01-00 is accurate, covering a wide measurement pressure range from 0 to 14.000mbar over a wide operating temperature range from -40 to +85°C, and its accuracy from -200 to +100mbar (typical accuracy of 20mbar).

The MS580314BA01-00 is based on leading MEMS technology and the latest benefits from TE Connectivity. This sensing principle leads to very low hysteresis and high pressure and temperature signal stability. Also, the gel protection and antimagnetic stainless steel cap make the MS580314BA01-00 durable up to 30bars of pressure.

Pressure 2 Click allows using both I2C and SPI interfaces with a maximum frequency of 400kHz for I2C and 20MHz for SPI communication. The selection can be made by positioning SMD jumpers labeled as COMM SEL in an appropriate position. Note that all the jumpers’ positions must be on the same side, or the Click board™ may become unresponsive. While the I2C interface is selected, the MS580314BA01-00 allows choosing the least significant bit (LSB) of its I2C slave address using the SMD jumper labeled I2C ADD.

This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used as a reference for further development.

Specifications

Pinout diagram

This table shows how the pinout on Pressure 2 Click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes	Pin					Pin	Notes
	NC	1	AN	PWM	16	NC
	NC	2	RST	INT	15	NC
SPI Chip Select	CS	3	CS	RX	14	NC
SPI Clock	SCK	4	SCK	TX	13	NC
SPI Data OUT	SDO	5	MISO	SCL	12	SCL	I2C Clock
SPI Data IN	SDI	6	MOSI	SDA	11	SDA	I2C Data
Power Supply	3.3V	7	3.3V	5V	10	NC
Ground	GND	8	GND	GND	9	GND	Ground

Onboard settings and indicators

Pressure 2 Click electrical specifications

Software Support

We provide a library for the Pressure 2 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Pressure 2 Click driver.

Key functions

• This function read calibration coefficients and return coefficient.

• This function preforms ADC conversion and return 24bit result.

• Functions for readding sensor.

Example Description

This application measures pressure in range from 0 to 14 bars (with a resolution of up to 0.2 mbars), but because of the stainless steel cap enclosure, the sensor can withstand up to 30 bars of pressure.

 void application_task ( void ) 
 { 
     pressure2_read_sensor( &pressure2, &pressure_p, &pressure_t ); 

     log_printf( &logger,"Pressure: %.2frn", pressure_p ); 
     log_printf( &logger,"Temperature: %.2frn", pressure_t ); 

     Delay_ms( 1000 ); 
 }

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.Pressure2

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.

mikroSDK

This Click board™ is supported with mikroSDK – MikroElektronika Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.

For more information about mikroSDK, visit the official page.