pot5  2.1.0.0
Main Page

POT 5 Click

POT 5 Click is a compact add-on board with accurate selectable reference voltage output. This board features the PDB081-P10-103B1, a high-quality 8mm micro rotary 10k potentiometer from Bourns. The PDB081-P10-103B1 potentiometers operate over a wide temperature range, withstanding 50V maximum voltage. This rotary potentiometer offers 5Ω maximum resistance, 0.03W power rating, and 100mV maximum sliding noise.

Click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Oct 2022.
  • Type : ADC/I2C type

Software Support

We provide a library for the POT 5 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 POT 5 Click driver.

Standard key functions :

Example key functions :

  • pot5_read_voltage This function reads raw ADC value and converts it to proportional voltage level.
    err_t pot5_read_voltage ( pot5_t *ctx, float *voltage );
  • pot5_convert_voltage_to_percents This function converts analog voltage to potentiometer position in percents.
    uint8_t pot5_convert_voltage_to_percents ( pot5_t *ctx, float voltage );
  • pot5_set_vref This function sets the voltage reference for POT 5 Click driver.
    err_t pot5_set_vref ( pot5_t *ctx, float vref );

Example Description

This example demonstrates the use of POT 5 Click board by reading and displaying the potentiometer position.

The demo application is composed of two sections :

Application Init

Initializes the driver and logger.

void application_init ( void )
{
log_cfg_t log_cfg;
pot5_cfg_t pot5_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
pot5_cfg_setup( &pot5_cfg );
POT5_MAP_MIKROBUS( pot5_cfg, MIKROBUS_1 );
err_t init_flag = pot5_init( &pot5, &pot5_cfg );
if ( ( ADC_ERROR == init_flag ) || ( I2C_MASTER_ERROR == init_flag ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Reads and displays on the USB UART the potentiometer position in forms of voltage and percents once per second.

void application_task ( void )
{
float voltage = 0;
if ( POT5_OK == pot5_read_voltage ( &pot5, &voltage ) )
{
log_printf( &logger, " AN Voltage : %.3f V\r\n", voltage );
log_printf( &logger, " Potentiometer : %u %%\r\n\n",
( uint16_t ) pot5_convert_voltage_to_percents ( &pot5, voltage ) );
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.POT5

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.


pot5_cfg_setup
void pot5_cfg_setup(pot5_cfg_t *cfg)
POT 5 configuration object setup function.
POT5_MAP_MIKROBUS
#define POT5_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: pot5.h:108
pot5_init
err_t pot5_init(pot5_t *ctx, pot5_cfg_t *cfg)
POT 5 initialization function.
POT5_OK
@ POT5_OK
Definition: pot5.h:169
application_task
void application_task(void)
Definition: main.c:60
pot5_convert_voltage_to_percents
uint8_t pot5_convert_voltage_to_percents(pot5_t *ctx, float voltage)
POT 5 convert voltage to percents function.
pot5_cfg_t
POT 5 Click configuration object.
Definition: pot5.h:148
pot5_t
POT 5 Click context object.
Definition: pot5.h:132
application_init
void application_init(void)
Definition: main.c:29
pot5_read_voltage
err_t pot5_read_voltage(pot5_t *ctx, float *voltage)
POT 5 read voltage level function.
pot5_set_vref
err_t pot5_set_vref(pot5_t *ctx, float vref)
POT 5 set vref function.