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#define SCL     TRISB4   // I2C bus
#define SDA     TRISB1   //
#define SCL_IN  RB4    //
#define SDA_IN  RB1    //

// initialize
SDA = SCL = 1 ;
SCL_IN = SDA_IN = 0 ;

// make master wait

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// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin 13 as an output.
  pinMode(13, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(13, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);              // wait for a second

NearLinHere

/*
  Rework original sample with AVR-GCC.
 */

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin 13 as an output.
  DDRB |= (1 << 5);    // pinMode(13, OUTPUT);  
}

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PORTC |= (1 << 0);   // Set bit 0 only

PORTC &= ~(1 << 1);  // Clear bit 1 only

PORTC ^= (1 << 4);   // Toggle bit 4 only.

PORTC |= (1 << 7);   // Set bit 7 only.

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#define _BV(x) (1 << x)

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#include <avr/io.h>

PORC |= _BV(0);   //PORTC |= (1 << 0);   // Set bit 0 only
 
PORCT &= ~_BV(1); //PORTC &= ~(1 << 1);  // Clear bit 1 only
 
PORTC ^= _BV(4);  //PORTC ^= (1 << 4);   // Toggle bit 4 only.
 
PORTC |= _BV(7);  //PORTC |= (1 << 7);   // Set bit 7 only.

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#include <avr/io.h>

PORTC |= (_BV(0) | _BV(1) | _BV(2));    // Set bits 0, 1, 2

PORTC &= ~(_BV(3) | _BV(4) | _BV(5));   // Clear bits 3, 4, 5

PORTC ^= (_BV(6) | _BV(7));             // Toggle bits 6, 7


//without using MACRO _BV() would looks like this

NearLinHere

/*
  Rework original sample with AVR-libc.
 */

#include <avr/io.h>
#include <util/delay.h>
// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin 13 as an output.
  DDRB |= _BV(5);    // pinMode(13, OUTPUT);  

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void setup() {
  // put your setup code here, to run once:
}

void loop() {
  // put your main code here, to run repeatedly: 
}

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/**
 * 
 */
package com.custom.view;

import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;