boxalljohn

if ( temperature > 100 )
{
	digitalWrite(13, LOW); // turn off kettle
}
else
{
	digitalWrite(13, HIGH); // leave kettle on
}

boxalljohn

if ( temperature > 100 )
{
	digitalWrite(13, LOW); // turn off kettle
}
else if (humidity > 80 )
{
	digitalWrite(7, HIGH); // turn on pin 7
}

boxalljohn

// Exercise 0.1 

// The setup() method runs once, when the sketch starts

int del=100; // sets a default delay time, 100 milliseconds (one tenth of a second)

void setup()
{
	// initialize the digital pins as outputs:
	// later on there will be easier ways to do this

boxalljohn

// Example 8.1

int character = 0; // for incoming serial data

void setup()
{
 Serial.begin(9600);
}
void loop()
{

boxalljohn

switch (zz) {
case 10:
//do something when variable zz equals 10
break;
case 20:
//do something when variable zz equals 20
break;
case 30:
// do something when variable equals 30
break;

boxalljohn

// DS1307/3232 SQW generator
#include "Wire.h"
#define DS1307_I2C_ADDRESS 0x68 // each I2C object has a unique bus address, the DS1307 is 0x68
void setup()
{
 Wire.begin();
}
void sqw1() // set to 1Hz
{
 Wire.beginTransmission(DS1307_I2C_ADDRESS);

boxalljohn

void displaynumber(int rawnumber, int cycles)
// takes an integer and displays it on our 4-digit LED display module and HOLDS it on the display for 'cycles' number of cycles
{
	for (int q=1; q<=cycles; q++)
	{
		if (rawnumber>=0 && rawnumber<10)
		{
			onedigitnumber(rawnumber);
		}
		else if (rawnumber>=10 && rawnumber<100)

boxalljohn

digitalWrite(latchpin, LOW);
shiftOut(datapin, clockpin, MSBFIRST, loopy);
digitalWrite(latchpin, HIGH);

boxalljohn

// example 5.3

int forward = 12;
int left = 9;
int right = 7;
int del = 5000;

void setup()
{
	pinMode(forward, OUTPUT);

boxalljohn

// Example 5.4

int forward = 12;
int left = 9;
int right = 7;
int del = 5000;

void setup()
{
	pinMode(forward, OUTPUT);