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mikroSDK Library

OPTO 2 click

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Author: MikroElektronika Team

Last Updated: 2018-04-04

Category: Other Codes

Downloaded: 439 times

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Opto 2 click is an optical isolator used to provide an optical galvanic isolation of sensitive lines.

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mikroSDK Library Blog

Opto 2 click

Opto 2 click

Native view of the Opto 2 click board.

View full image
Opto 2 click

Opto 2 click

Front and back view of the Opto 2 click board.

View full image

Library Description

The library performs the check procedure for the desired outputs (OUT1 - OUT4). For more details check the documentation.

Key functions:

  • uint8_t opto2_checkOut1( void ) - The function checks the state of the OUT1 pin.

Examples Description

The demo application is composed of three sections:

  • System Initialization - Initializes peripherals and pins.
  • Application Initialization -  Initializes GPIO driver and selects the outputs (OUT1 - OUT4) which state be checked.
  • Application Task - (code snippet) - Performs the check procedure for selected outputs and logs the states from the outputs on USB UART. Repeats the check procedure every 2 seconds.
     
void applicationTask()
{
 tmp = 1;

 for (cnt = 0; cnt < 4; cnt++)
 {
 switch (selOutput & tmp)
 {
 case 0x01 :
 {
 checkOutput = opto2_checkOut1();

 if (checkOutput == 0)
 {
 mikrobus_logWrite( "OUT1 is low", _LOG_LINE );
 }
 else
 {
 mikrobus_logWrite( "OUT1 is high", _LOG_LINE );
 }
 break;
 }
 case 0x02 :
 {
 checkOutput = opto2_checkOut2();

 if (checkOutput == 0)
 {
 mikrobus_logWrite( "OUT2 is low", _LOG_LINE );
 }
 else
 {
 mikrobus_logWrite( "OUT2 is high", _LOG_LINE );
 }
 break;
 }
 case 0x04 :
 {
 checkOutput = opto2_checkOut3();

 if (checkOutput == 0)
 {
 mikrobus_logWrite( "OUT3 is low", _LOG_LINE );
 }
 else
 {
 mikrobus_logWrite( "OUT3 is high", _LOG_LINE );
 }
 break;
 }
 case 0x08 :
 {
 checkOutput = opto2_checkOut4();

 if (checkOutput == 0)
 {
 mikrobus_logWrite( "OUT4 is low", _LOG_LINE );
 }
 else
 {
 mikrobus_logWrite( "OUT4 is high", _LOG_LINE );
 }
 break;
 }
 default :
 {
 break;
 }
 }

 tmp <<= 1;
 }
 mikrobus_logWrite( "", _LOG_LINE );

 Delay_ms( 2000 );
}
  • void opto2_setLogger( uint8_t selOut1, uint8_t selOut2, uint8_t selOut3, uint8_t selOut4 ) - Determines the outputs that be checked and logged on USB UART terminal. If selOutx is 1, the corresponding output will be included in check procedure.vAnd if selOutx is 0, that output will not be included in check procedure and will not be logged on UART.

mikroE Libraries used in the example:

  • UART

Additional notes and information

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.

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