mqsensors

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MQ Sensors click

This click group supports all MQ sensors in click form.

• Product page - LPG click

• Product page - Alcohol click

• Product page - Hydrogen click

• Product page - Air Quality click

• Product page - Methane click

• Product page - CO click

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Click library

• Author : Katarina Perendic
• Date : nov 2019.
• Type : ADC type

Software Support

We provide a library for the MqSensors 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for MqSensors Click driver.

Standard key functions :

• Config Object Initialization function.

void mqsensors_cfg_setup ( mqsensors_cfg_t *cfg );

• Initialization function.

MQSENSORS_RETVAL mqsensors_init ( mqsensors_t *ctx, mqsensors_cfg_t *cfg );

Example key functions :

• Generic read function

mqsensors_data_t mqsensors_generic_read ( mqsensors_t *ctx );

Examples Description

The demo application shows the reading of the adc values given by the sensors.

The demo application is composed of two sections :

Application Init

Configuring clicks and log objects.

void application_init ( void )
{
    log_cfg_t log_cfg;
    mqsensors_cfg_t cfg;

    //  Logger initialization.

    log_cfg.level = LOG_LEVEL_DEBUG;
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, "---- Application Init ----" );

    //  Click initialization.

    mqsensors_cfg_setup( &cfg );
    MQSENSORS_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    mqsensors_init( &mqsensors, &cfg );
}

Application Task

Reads the adc value and prints in two forms (DEC and HEX)

void application_task ( void )
{
    mqsensors_data_t tmp;
    
    //  Task implementation.
    
    tmp = mqsensors_generic_read ( &mqsensors );
    log_printf
    ( 
        &logger, 
        "** ADC value : [DEC]- %d, [HEX]- 0x%x \r\n", 
        tmp, 
        tmp
    );
    Delay_ms( 1000 );
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.MqSensors

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. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.

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