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mikroSDK Library

Keylock 2 click

Rating:

5

Author: MIKROE

Last Updated: 2019-07-26

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: Pushbutton/Switches

Downloaded: 4234 times

Not followed.

License: MIT license  

Keylock 2 Click carries antistatic process sealed keylock mechanism that has three positions. This board is intended to be used for implementation into applications which require mechanical lock mechanism, as well as for testing the same concepts in early development stage.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

Keylock 2 Click

Keylock 2 Click

Native view of the Keylock 2 click board.

View full image
Keylock 2 click

Keylock 2 click

Front and back view of the Keylock 2 click board.

View full image

Library Description

The library contains a function for reading the state of a pin and a function that, based on the state of 3 pins - detects the position of the key.

Key functions:

  • uint8_t keylock2_getPinState(uint8_t pin) - Get Pin State.
  • uint8_t keylock2_getPosition() - Get Key Position.

Examples description

The application is composed of three sections :

  • System Initialization - Sets RST pin, PWM pin and INT pin as INPUT.
  • Application Initialization - Initialization driver init.
  • Application Task - Checks the current key position and logs the current position on the USB UART.
void applicationTask()
{
    keyPosition = keylock2_getPosition();
    
    if(oldPosition != keyPosition)
    {
        if(keyPosition == _KEYLOCK2_POSITION_1)
        {
            mikrobus_logWrite(" -- FIRST position -- ", _LOG_LINE);
        }
        else if(keyPosition == _KEYLOCK2_POSITION_2)
        {
            mikrobus_logWrite(" -- SECOND position -- ", _LOG_LINE);
        }
        else
        {
            mikrobus_logWrite(" -- THIRD position -- ", _LOG_LINE);
        }
    }
    oldPosition = keyPosition;
    Delay_ms( 500 );
}

Other mikroE Libraries used in the example:

  • GPIO
  • UART

Additional notes and informations

Depending on the development board you are using, you may need USB UART clickUSB 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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