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mikroSDK Library

Opto Encoder click

Rating:

5

Author: MIKROE

Last Updated: 2018-03-13

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: Optical

Downloaded: 5812 times

Not followed.

License: MIT license  

Opto Encoder click is a linear incremental optical sensor/encoder click, which can be used for the movement or rotation encoding. Encoders of this type are widely used for many applications, which involve precise detection of the position, speed, or rotational angle of an object.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

Opto Encoder click

Opto Encoder click

Native view of the Opto Encoder click board.

View full image
Opto Encoder click

Opto Encoder click

Front and back view of the Opto Encoder click borad.

View full image

Library Description

This library contains basic functions that will allow you to read the sensor.

Key functions:

void optoencoder_init() - Initialization for the click board.

uint8_t optoencoder_getO1() - Read the state of encoder channel 1.

uint8_t optoencoder_getO2() - Read the state of the encoder channel 2.

int16_t optoencoder_getPosition() - Return's the current position.

Examples Description

  • The application is composed of three sections:
  • System Initialization - Initializes PWM pin and INT pin as INPUT.
  • Application Initialization - Initializes Driver init and opto encoder init.
  • Application Task - (code snippet) - Detects the change of step and logs to USB UART number of stepped steps.
void applicationTask()
{
 newStep = optoencoder_getPosition();

 if(oldStep != newStep)
 {
 IntToStr(newStep, text);
 mikrobus_logWrite(" Step: ", _LOG_TEXT);
 mikrobus_logWrite(text, _LOG_LINE);
 oldStep = newStep;
 }
}

Other mikroE Libraries used in the example:

  • UART Library
  • Conversions Library
  • C_String Library

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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