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 (141482 times)
  2. FAT32 Library (74339 times)
  3. Network Ethernet Library (58869 times)
  4. USB Device Library (48921 times)
  5. Network WiFi Library (44698 times)
  6. FT800 Library (44229 times)
  7. GSM click (30938 times)
  8. mikroSDK (29817 times)
  9. PID Library (27423 times)
  10. microSD click (27375 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

DIGI POT Click

Rating:

0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.19

mikroSDK Library: 2.0.0.0

Category: Digital potentiometer

Downloaded: 569 times

Not followed.

License: MIT license  

DIGIPOT Click is an accessory board in mikroBUS form factor. It features a single-channel digital potentiometer MCP4161 with 8-bit resolution (256 wiper steps) and industry-standard SPI serial interface.

No Abuse Reported

Do you want to subscribe in order to receive notifications regarding "DIGI POT Click" changes.

Do you want to unsubscribe in order to stop receiving notifications regarding "DIGI POT Click" changes.

Do you want to report abuse regarding "DIGI POT Click".

  • mikroSDK Library 1.0.0.0
  • Comments (0)

mikroSDK Library Blog


DIGI POT Click

DIGIPOT Click is an accessory board in mikroBUS form factor. It features a single-channel digital potentiometer MCP4161 with 8-bit resolution (256 wiper steps) and industry-standard SPI serial interface.

digipot_click.png

Click Product page


Click library

  • Author : Stefan Ilic
  • Date : Jun 2021.
  • Type : SPI type

Software Support

We provide a library for the DigiPot 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 DigiPot Click driver.

Standard key functions :

  • digipot_cfg_setup Config Object Initialization function.

    void digipot_cfg_setup ( digipot_cfg_t *cfg );
  • digipot_init Initialization function.

    err_t digipot_init ( digipot_t *ctx, digipot_cfg_t *cfg );

Example key functions :

  • digipot_set_wiper_positions The function sets 8-bit wiper positions data.

    void digipot_set_wiper_positions ( digipot_t *ctx, uint8_t wiper_pos );
  • digipot_convert_output The function convert 10-bit ADC value to volatage reference.

    float digipot_convert_output ( uint16_t adc_val, float v_ref );

Example Description

The demo application changes the resistance using DIGIPOT Click.

The demo application is composed of two sections :

Application Init

Initializes SPI and LOG modules.


void application_init ( void ) {
    log_cfg_t log_cfg;  /**< Logger config object. */
    digipot_cfg_t digipot_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.

    digipot_cfg_setup( &digipot_cfg );
    DIGIPOT_MAP_MIKROBUS( digipot_cfg, MIKROBUS_1 );
    err_t init_flag  = digipot_init( &digipot, &digipot_cfg );
    if ( SPI_MASTER_ERROR == init_flag ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    log_printf( &logger, "----------------\r\n" );
    log_printf( &logger, " DIGI POT Click\r\n" );
    log_printf( &logger, "----------------\r\n" );
}

Application Task

This is an example which demonstrates the use of DIGI POT Click board. Increments the wiper position by 10 positions every 5 seconds.


void application_task ( void ) {
    for ( uint16_t n_cnt = 127; n_cnt < 255; n_cnt += 10 ) {
        wiper_pos = ( uint8_t ) n_cnt;
        digipot_set_wiper_positions( &digipot, wiper_pos );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        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.DigiPot

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.


ALSO FROM THIS AUTHOR

Compass 2 click

2

Compass 2 click – board with AK8963 3-axis electronic compass | MikroElektronika Compass 2 click is a mikroBUS add-on board with an AK8963 3-axis electronic compass. The high sensitivity sensor is based on the Hall effect. The built-in ADC converter can be set up at either 14 or 16 bit resolution, for each of the 3 axes.

[Learn More]

Flash click

0

The Flash memory module used on this Click board is the EN25Q80B, an 8 Mbit serial Flash memory with 4 KB Uniform Sector, from EON Silicon Solutions. The Flash memory density is usually expressed in bits, so exactly 8,388,608 bits are organized in units (or words, also known as bytes) of 8 bits, which gives 1,048,576 bytes of data memory.

[Learn More]

Servo Click

0

Servo Click is a 16-channel PWM servo driver with the voltage sensing circuitry. It can be used to simultaneously control 16 servo motors, each with its own programmable PWM signal.

[Learn More]