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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.8
mikroSDK Library: 2.0.0.0
Category: Environmental
Downloaded: 114 times
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License: MIT license
pH Click is a compact add-on board that provides an opportunity for the user to read pH with the same accuracy and capabilities as with some other expensive solutions. This board features the pH EZO™, a 6th generation embedded pH circuit that offers the highest level of stability and accuracy from AtlasScientific.
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DOWNLOAD LINK | RELATED COMPILER | CONTAINS |
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4822_ph_click.zip [641.94KB] | mikroC AI for ARM GCC for ARM Clang for ARM mikroC AI for PIC mikroC AI for PIC32 XC32 GCC for RISC-V Clang for RISC-V mikroC AI for dsPIC XC16 |
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pH Click is a compact add-on board that provides an opportunity for the user to read pH with the same accuracy and capabilities as with some other expensive solutions. This board features the pH EZO™, a 6th generation embedded pH circuit that offers the highest level of stability and accuracy from AtlasScientific.
We provide a library for the pH 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.
This library contains API for pH Click driver.
ph_cfg_setup
Config Object Initialization function.
void ph_cfg_setup ( ph_cfg_t *cfg );
ph_init
Initialization function.
err_t ph_init ( ph_t *ctx, ph_cfg_t *cfg );
ph_default_cfg
Click Default Configuration function.
err_t ph_default_cfg ( ph_t *ctx );
ph_send_cmd
Send command function.
void ph_send_cmd ( ph_t *ctx, char *p_cmd );
ph_get_cmd_resp
Send get response function.
void ph_get_cmd_resp ( ph_t *ctx, char *p_cmd, char *p_resp );
ph_switch_led
Toggle LED function.
void ph_switch_led ( ph_t *ctx, uint8_t state, char *p_resp );
This example reads and processes data from pH clicks.
The demo application is composed of two sections :
Initializes UART driver, performing a factory reset of the device, disabling continuous read, and performing calibration at the midpoint on the pH scale.
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
ph_cfg_t ph_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.
ph_cfg_setup( &ph_cfg );
PH_MAP_MIKROBUS( ph_cfg, MIKROBUS_1 );
if ( UART_ERROR == ph_init( &ph, &ph_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
ph_factory_rst( &ph, app_buf );
Delay_ms ( 1000 );
ph_cont_read( &ph, 0, app_buf );
log_printf( &logger, "-----------------------\r\n" );
log_printf( &logger, " -- Initialized -- \r\n" );
log_printf( &logger, "-----------------------\r\n" );
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" );
for ( uint8_t n_cnt = 0; n_cnt < 20; n_cnt++ )
{
Delay_ms ( 1000 );
}
log_printf( &logger, " Starting calibration \r\n" );
log_printf( &logger, "-----------------------\r\n" );
ph_perf_calib ( &ph, PH_CMD_CALIB_MID, 7.000, app_buf );
Delay_ms ( 1000 );
log_printf( &logger, " Calibration done! \r\n" );
log_printf( &logger, "-----------------------\r\n" );
log_printf( &logger, " - Application task -\r\n" );
log_printf( &logger, "-----------------------\r\n" );
ph_send_cmd( &ph, PH_CMD_DIS_RSP_CODES );
Delay_ms ( 1000 );
ph_clr_log_buf( app_buf );
}
This example shows the capabilities of the pH Click board by performing a reading of the pH value of the substance in which the probe is submerged and displaying readings via the USART terminal.
void application_task ( void )
{
ph_send_cmd ( &ph, PH_CMD_SET_SNGL_READ );
ph_response( &ph, app_buf );
log_printf( &logger, " pH value: %s ", app_buf );
log_printf( &logger, "-----------------------\r\n" );
ph_clr_log_buf( app_buf );
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:
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.