TOP Contributors

  1. MIKROE (2784 codes)
  2. Alcides Ramos (405 codes)
  3. Shawon Shahryiar (307 codes)
  4. jm_palomino (133 codes)
  5. Bugz Bensce (97 codes)
  6. S P (73 codes)
  7. dany (71 codes)
  8. MikroBUS.NET Team (35 codes)
  9. NART SCHINACKOW (34 codes)
  10. Armstrong Subero (27 codes)

Most Downloaded

  1. Timer Calculator (141361 times)
  2. FAT32 Library (74205 times)
  3. Network Ethernet Library (58776 times)
  4. USB Device Library (48854 times)
  5. Network WiFi Library (44564 times)
  6. FT800 Library (44149 times)
  7. GSM click (30883 times)
  8. mikroSDK (29739 times)
  9. PID Library (27372 times)
  10. microSD click (27309 times)
Libstock prefers package manager

Package Manager

We strongly encourage users to use Package manager for sharing their code on Libstock website, because it boosts your efficiency and leaves the end user with no room for error. [more info]

< Back
mikroSDK Library

pH 2 Click

Rating:

0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.7

mikroSDK Library: 2.0.0.0

Category: Environmental

Downloaded: 226 times

Not followed.

License: MIT license  

pH 2 Click is a compact add-on board used to determine the alkalinity or acidity of a sample. This board features the MCP607, a low-bias current Op Amp from Microchip, performing level shifting and high-input impedance buffering in a single-supply pH-electrode circuit.

No Abuse Reported

Do you want to subscribe in order to receive notifications regarding "pH 2 Click" changes.

Do you want to unsubscribe in order to stop receiving notifications regarding "pH 2 Click" changes.

Do you want to report abuse regarding "pH 2 Click".

  • Information
  • Comments (0)

mikroSDK Library Blog


pH 2 Click

pH 2 Click is a compact add-on board used to determine the alkalinity or acidity of a sample. This board features the MCP607, a low-bias current Op Amp from Microchip, performing level shifting and high-input impedance buffering in a single-supply pH-electrode circuit.

ph2_click.png

Click Product page


Click library

  • Author : Stefan Ilic
  • Date : Jan 2023.
  • Type : ADC/I2C type

Software Support

We provide a library for the pH 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 pH 2 Click driver.

Standard key functions :

  • ph2_cfg_setup Config Object Initialization function.

    void ph2_cfg_setup ( ph2_cfg_t *cfg );
  • ph2_init Initialization function.

    err_t ph2_init ( ph2_t *ctx, ph2_cfg_t *cfg );

Example key functions :

  • ph2_calibrate Ph 2 calibrate function.

    err_t ph2_calibrate ( ph2_t *ctx, float pH_value );
  • ph2_calculate_ph Ph 2 calculate pH value function.

    err_t ph2_calculate_ph ( ph2_t *ctx, float *pH_value );
  • ph2_calibrate_offset Ph 2 calibrate offset function.

    void ph2_calibrate_offset ( ph2_t *ctx );

Example Description

This library contains API for pH 2 Click driver. The library initializes and defines the I2C bus drivers or ADC drivers to read data from pH probe.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs offset calibration, as well as calibration in pH-neutral substance.


void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    ph2_cfg_t ph2_cfg;  /**< Click config object. */

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.
    ph2_cfg_setup( &ph2_cfg );
    PH2_MAP_MIKROBUS( ph2_cfg, MIKROBUS_1 );
    err_t init_flag = ph2_init( &ph2, &ph2_cfg );
    if ( ( ADC_ERROR == init_flag ) || ( I2C_MASTER_ERROR == init_flag ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    log_printf( &logger, " ================================ \r\n" );
    log_printf( &logger, "     Performing calibration       \r\n" );
    log_printf( &logger, " ================================ \r\n" );
    log_printf( &logger, " Disconect BNC connector, \r\n" );
    log_printf( &logger, "    short-circuit it, \r\n" );
    log_printf( &logger, " adjust offset potentiometer \r\n" );
    log_printf( &logger, " ================================ \r\n" );
    log_printf( &logger, " STAT1 - turn clockwise \r\n" );
    log_printf( &logger, " STAT2 - turn counter-clockwise \r\n" );
    log_printf( &logger, " ================================ \r\n" );

    ph2_calibrate_offset( &ph2 );

    log_printf( &logger, " Calibration completed \r\n" );
    log_printf( &logger, " ================================ \r\n" );

    log_printf( &logger, " Connect probe back \r\n" );
    log_printf( &logger, " ================================ \r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    log_printf( &logger, "  Place probe into pH  \r\n" );
    log_printf( &logger, " neutral substance for \r\n" );
    log_printf( &logger, " mid point calibration \r\n" );
    log_printf( &logger, " ================================ \r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    log_printf( &logger, " Starting calibration  \r\n" );
    log_printf( &logger, " ================================ \r\n" );  

    ph2_calibrate( &ph2, 7 );

    log_printf( &logger, " Calibration done!  \r\n" );
    log_printf( &logger, " ================================ \r\n" ); 

    log_info( &logger, " Application Task " );
    log_printf( &logger, " ================================ \r\n" ); 
}

Application Task

This example demonstrates the use of the pH 2 Click board by reading pH value of the substance where probe is placed.


void application_task ( void ) 
{
    float pH_val = 0;
    ph2_calculate_ph( &ph2, &pH_val );
    log_printf( &logger, " pH value: %.3f \r\n", pH_val );
    log_printf( &logger, " ================================ \r\n" ); 
    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.pH2

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.


ALSO FROM THIS AUTHOR

UV click

5

With UV click you can measure Ultraviolet light intensity both indoors and outdoors. The photodiode on the ML8511 IC is sensitive to UV-A (365–315 nm) and UV-B (315-280) rays. You can use UV click to design devices that protect the user against excesive sun exposure, or for industrial purposes where UV light is used for sterilization.

[Learn More]

RN4870 Click

0

RN4870 Click carries the RN4870 Bluetooth® 4.2 low energy module from Microchip. The Click is designed to run on a 3.3V power supply. It uses ASCII Command Interface over UART for communication with target microcontroller, with additional functionality provided by the following pins on the mikroBUS™ line: PWM, INT, RST, CS.

[Learn More]

Heart Rate 11 Click

0

Heart Rate 11 Click is a compact add-on board suitable for heart rate monitoring applications. This board features the OB1203, a multi-channel light sensor (LS/CS), a proximity sensor (PS), and a photoplethysmography sensor (PPG) from Renesas. It can be configured as an ambient light sensor to measure ambient light similar to the human eye experience or as an RGB color sensor. The OB1203 establishes communication to and from the module entirely through a standard I2C compatible interface and has a fully integrated biosensor for reflective photoplethysmography.

[Learn More]