adc3  2.0.0.0
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ADC 3 click

ADC 3 Click represent 16-bit multichannel analog-to-digital converter. The click has four pairs of screw terminals onboard, letting you access the chip’s four differential input channels.

click Product page


Click library

  • Author : Mihajlo Djordjevic
  • Date : Dec 2019.
  • Type : I2C type

Software Support

We provide a library for the Adc3 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 Adc3 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void adc3_cfg_setup ( adc3_cfg_t *cfg );

  • Initialization function.

    ADC3_RETVAL adc3_init ( adc3_t *ctx, adc3_cfg_t *cfg );

  • Click Default Configuration function.

    void adc3_default_cfg ( adc3_t *ctx );

Example key functions :

  • This function is used to initiate general call reset.

    void adc3_default_cfg ( adc3_t *ctx );

  • This function is used to read ADC value and calculate voltage.

    float adc3_read_voltage ( adc3_t *ctx, uint8_t channel, uint8_t resolution, uint8_t gain );

Examples Description

ADC 3 example code shows usage of analog-to-digital converter.

The demo application is composed of two sections :

Application Init

Application Init performs Logger and Click initialization.

void application_init ( void )
{
log_cfg_t log_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_printf( &logger, "--------------------------\r\n" );
log_printf( &logger, " Application Init\r\n" );
Delay_ms ( 100 );
// Click initialization.
adc3_cfg_setup( &cfg );
ADC3_MAP_MIKROBUS( cfg, MIKROBUS_1 );
adc3_init( &adc3, &cfg );
log_printf( &logger, "--------------------------\r\n" );
log_printf( &logger, " ------ ADC 3 Click ----- \r\n" );
log_printf( &logger, "--------------------------\r\n" );
Delay_ms ( 1000 );
adc3_default_cfg( &adc3 );
Delay_ms ( 100 );
log_printf( &logger, " -- Initialization done --\r\n" );
log_printf( &logger, "--------------------------\r\n" );
Delay_ms ( 1000 );
}

Application Task

This is an example that shows the capabilities of the ADC 3 Click by taking voltage measurements from all four channel. Results are being sent to the UART Terminal where you can track their changes. All data logs write on USB UART and changes for every 1 sec.

void application_task ( void )
{
Delay_ms ( 100 );
log_printf( &logger, "Channel 1 : %0.2f V \r\n", read_volt );
Delay_ms ( 100 );
log_printf( &logger, "Channel 2 : %0.2f V \r\n", read_volt );
Delay_ms ( 100 );
log_printf( &logger, "Channel 3 : %0.2f V \r\n", read_volt );
Delay_ms ( 100 );
log_printf( &logger, "Channel 4 : %0.2f V \r\n", read_volt );
log_printf( &logger, "--------------------------\r\n" );
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.Adc3

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.


ADC3_SELECT_CHANNEL_4
#define ADC3_SELECT_CHANNEL_4
Definition: adc3.h:125
adc3_init
ADC3_RETVAL adc3_init(adc3_t *ctx, adc3_cfg_t *cfg)
Initialization function.
adc3_cfg_setup
void adc3_cfg_setup(adc3_cfg_t *cfg)
Config Object Initialization function.
ADC3_SELECT_CHANNEL_3
#define ADC3_SELECT_CHANNEL_3
Definition: adc3.h:124
ADC3_MAP_MIKROBUS
#define ADC3_MAP_MIKROBUS(cfg, mikrobus)
Definition: adc3.h:66
ADC3_SELECT_CHANNEL_1
#define ADC3_SELECT_CHANNEL_1
Definition: adc3.h:122
application_task
void application_task(void)
Definition: main.c:75
adc3_default_cfg
void adc3_default_cfg(adc3_t *ctx)
Click Default Configuration function.
ADC3_SAMPLE_RATE_12
#define ADC3_SAMPLE_RATE_12
Definition: adc3.h:107
ADC3_SELECT_CHANNEL_2
#define ADC3_SELECT_CHANNEL_2
Definition: adc3.h:123
adc3_cfg_t
Click configuration structure definition.
Definition: adc3.h:183
application_init
void application_init(void)
Definition: main.c:37
adc3_read_voltage
float adc3_read_voltage(adc3_t *ctx, uint8_t channel, uint8_t resolution, uint8_t gain)
Read voltage function.
ADC3_PGA_GAIN_X1
#define ADC3_PGA_GAIN_X1
Definition: adc3.h:98