mbed-js-lps22hb

LPS22HB library wrappers for Javascript on Mbed

About library

Helper class providing functions for LPS22HB sensor library (part of X_NUCLEO_IKS01A2) in JavaScript.

Requirements

This library is to be used with the following tools:

• Mbed
• JerryScript

See this project for more information: mbed-js-example

Dependencies

You need to install dependencies before installing this library.

• If using SPI: mbed-js-spi
• If using DevI2C: mbed-js-devi2c

Installation

• Before installing this library, make sure you have a working JavaScript on Mbed project and the project builds for your target device. Follow mbed-js-example to create the project and learn more about using JavaScript on Mbed.

• Install this library using npm (Node package manager) with the following command:

cd project_path
npm install syed-zeeshan/mbed-js-lps22hb

Usage

/*****************
 * Instantiation *
 *****************/
// Instantiate LPS22HB library 
var lps22hb = LPS22HB_JS();

/******************
 * Initialization *
 ******************/
// Initialize using DevI2C
lps22hb.init_i2c(dev_i2c);

// Initialize using DevI2C, address and int pin
lps22hb.init_i2c(dev_i2c, address, int_pin);

// Initialize using SPI and CS pin
lps22hb.init_spi(spi, cs_pin);

// Initialize using SPI, CS pin, int pin and SPI type
lps22hb.init_spi(spi, cs_pin, int_pin, spi_type);

/***********************
 * Reading sensor data *
 ***********************/
// To read temperature data (string output)
lps22hb.get_temperature();

// To read pressure data (string output)
lps22hb.get_pressure();

Example using DevI2C (Nucleo-F429ZI)

// Initialize DevI2C with SDA and SCL pins
var dev_i2c = DevI2C(D14, D15);

// Instantiate LPS22HB library 
var lps22hb = LPS22HB_JS();

// Initialize LPS22HB library
lps22hb.init_i2c(dev_i2c);

// Print sensor data
var temp = lps22hb.get_temperature();
var press = lps22hb.get_pressure();

print("[Temperature]: [" + temp + "]");
print("[Pressure]: [" + press + "]");

Example using SPI (Nucleo-F476RG)

// Initialize SPI with MOSI, MISO, SCLK pins
var spi = SPI(PB_15, NC, PB_13);

// Instantiate LPS22HB library 
var lps22hb = LPS22HB_JS();

// Initialize using SPI and CS pin
lps22hb.init_spi(spi, PA_3, NC, 3);

// Print sensor data
var temp = lps22hb.get_temperature();
var press = lps22hb.get_pressure();

print("[Temperature]: [" + temp + "]");
print("[Pressure]: [" + press + "]");