wiringRTk

C library using WiringPi interface for RTk.GPIO.

Programs using basic wiringPi functionality can be linked to wiringRTk without code modification.

Alternate interface allows use of both wiringPi for rapsberry pi GPIO pins and RTk.GPIO together.

Installation

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make
sudo make install

Example Code

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WiringPi interface

Header files

#include <wiringRTk.h>

or you can use header from wiringPi library

#include <wiringPi.h>

Setup

wiringPi pin numbering

wiringPiSetup();

raspberry pi physical pins

wiringPiSetupPhys();

Broadcom pins

wiringPiSetupGpio();
//or
wiringPiSetupSys();

Pin Mode

//pin 8
pinMode(8, OUTPUT);
pinMode(8, INPUT);

Ouput

digitalWrite(8, HIGH);
digitalWrite(8, LOW);

Input

pullup or down

pullUpDnControl(8, PUD_DOWN);
pullUpDnControl(8, PUD_UP);

write

//HIGH or LOW
int val = digitalRead(8);

Delay

milliseconds

delay(1000);

microseconds

delayMicroseconds(1000);

Sample Program

#include <wiringRTk.h>

#define PIN 8

int main() {

    wiringPiSetup();
    pinMode(PIN, OUTPUT);

    while(1) {
        digitalWrite(PIN, HIGH);
        delay(1000);
        digitalWrite(PIN, LOW);
        delay(1000);
    }

    return 0;
}

RTk interface

You can use the alternate wiringRTk interface. Useful if you want to use raspberry pi GPIO pins and RTk.GPIO together.

Setup

RTk_wiringRTkSetup();
RTk_wiringRTkSetupGpi();
RTk_wiringRTkSetupPhys();

All other functions are same as wiringPi but with RTk_ prefix

Sample Program

#include <RTkGPIO.h>

#define PIN 8

int main() {

    RTk_wiringRTkSetup();
    RTk_pinMode(PIN, OUTPUT);

    while(1) {
        RTk_digitalWrite(PIN, HIGH);
        RTk_delay(1000);
        RTk_digitalWrite(PIN, LOW);
        RTk_delay(1000);
    }

    return 0;
}

Compilation

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Link with -lwiringRTk

gcc wiringRTk_sample.c -lwiringRTk -o wiringRTk_sample

or for wiringRTk interface use -lRTkGPIO