Tag: projects

//
// Message Center using Arduino and the ioBridge IO-204
//
// An open-souce Shadowlord Project
// www.IamShadowlord.com

#include SoftwareSerial.h>

// SoftwareSerial Pins
#define rxPin 2
#define txPin 3

// Setup Software Serial
SoftwareSerial softSerial = SoftwareSerial(rxPin, txPin);

// Global Setup
int middleLED = 11;
int rightLED = 10;
int leftLED = 12;

int leftButton = 5;
int leftButtonCurrent = LOW;
int leftButtonReading;
int leftButtonPrevious = HIGH;
long leftButtonTime = 0;
long leftButtonDebounce = 200;

int middleButton = 4;
int middleButtonCurrent = LOW;
int middleButtonReading;
int middleButtonPrevious = HIGH;
long middleButtonTime = 0;
long middleButtonDebounce = 200;

int rightButton = 6;
int rightButtonCurrent = LOW;
int rightButtonReading;
int rightButtonPrevious = HIGH;
long rightButtonTime = 0;
long rightButtonDebounce = 200;

int tempPin = 5;
int tempAnalog = 0;
int tempF = 0;

char* currentRequest = "";

// Start up program
void setup() {

pinMode(rxPin, INPUT);
pinMode(txPin, OUTPUT);

pinMode(leftLED, OUTPUT);
pinMode(middleLED, OUTPUT);
pinMode(rightLED, OUTPUT);

pinMode(leftButton, INPUT);
pinMode(middleButton, INPUT);
pinMode(rightButton, INPUT);

softSerial.begin(9600);
delay(100);

Serial.begin(9600);
delay(100);

Serial.flush();
delay(100);

// Setup LCD
clearLCD();
setBacklightBrightness(9);
delay(1000);

// Test LEDs
digitalWrite(leftLED, HIGH);
digitalWrite(middleLED, HIGH);
digitalWrite(rightLED, HIGH);

delay(1500);

digitalWrite(leftLED, LOW);
digitalWrite(middleLED, LOW);
digitalWrite(rightLED, LOW);

}

// Start main program loop
void loop(){

// Get Analog Input and scale as temperature for ioBridge temperature sensor on arduino
tempAnalog = analogRead(tempPin);
tempF = tempAnalog / 6.875;

// Monitor left button status and debounce
leftButtonReading = digitalRead(leftButton);

if (leftButtonReading == HIGH && leftButtonPrevious == LOW && 
          millis() - leftButtonTime > leftButtonDebounce) {
if (leftButtonCurrent == HIGH) leftButtonCurrent = LOW;
else {digitalWrite(leftLED, HIGH);
clearLCD();
delay(100);
softSerial.print("Outside: ");
delay(100);
softSerial.print(tempF);
delay(100);
moveCursor("02", "01");
delay(100);
softSerial.print("Atlanta: ");
leftButtonCurrent = LOW;
//Request temperature in Atlanta via ioBridge
Serial.print("[[[weather|Atlanta]]]");
digitalWrite(leftLED, LOW);
}
leftButtonTime = millis();
}

leftButtonPrevious = leftButtonReading;

// Monitor middle button status and debounce
middleButtonReading = digitalRead(middleButton);

if (middleButtonReading == HIGH && middleButtonPrevious == LOW &&
millis() - middleButtonTime > middleButtonDebounce) {
if (middleButtonCurrent == HIGH) middleButtonCurrent = LOW;
else {currentRequest = "Google";
digitalWrite(middleLED, HIGH);
clearLCD();delay(100);
softSerial.print("GOOG: $");
delay(100);
middleButtonCurrent = LOW;
//Request Google Stock Price via ioBridge  
Serial.print("[[[stock|GOOG]]]"); 
digitalWrite(middleLED, LOW);
}
middleButtonTime = millis();
}

middleButtonPrevious = middleButtonReading;

// Monitor right button status and debounce
rightButtonReading = digitalRead(rightButton);

if (rightButtonReading == HIGH && rightButtonPrevious == LOW &&
millis() - rightButtonTime > rightButtonDebounce) {
if (rightButtonCurrent == HIGH) rightButtonCurrent = LOW;
else {
digitalWrite(rightLED, HIGH);
clearLCD();
delay(100);
softSerial.print("Alert: ");
delay(100);
rightButtonCurrent = LOW;
//Send email via ioBridge  
Serial.print("[[[email|hans@nothans.com|Alert|Mom, is pressing your buttons]]]");
digitalWrite(rightLED, LOW);
}
rightButtonTime = millis();
}

rightButtonPrevious = rightButtonReading;

// Display serial messages
if(Serial.available() > 0){

delay(100);

char charIn = 0;
byte i = 0;
char stringIn[32] = "";

while(Serial.available()) {
charIn = Serial.read();
stringIn[i] = charIn;
i += 1;
}

if (currentRequest == "Google") {

softSerial.print(stringIn);
int stockPrice = atoi(stringIn);
delay(100);
moveCursor("02", "01");
delay(100);
stockPrice = stockPrice - 405;
softSerial.print("Change: $"); 
delay(100);
softSerial.print(stockPrice);
currentRequest = "";

}
elsesoftSerial.print(stringIn);
}

// End program loop     
}

//
// ioBridge Serial LCD Functions and Parameters (for SoftwareSerial)
//

void displayMessage(char* message){
softSerial.print(message);
}

void clearLCD(){
softSerial.print(0xFE, BYTE);
softSerial.print("Z");
}

void setBacklightBrightness(int level){
// level
// 0=Off -> 9=Brightest

softSerial.print(0xFE, BYTE);
softSerial.print("B");
softSerial.print(level);
}

void setBacklightTime(int level, byte seconds){
// level
// 0=Off -> 9=Brightest

// seconds
// 01 = 1 seconds => 06 = 60 seconds

softSerial.print(0xFE, BYTE);
softSerial.print("T");
softSerial.print(level);
softSerial.print(seconds, BYTE);
}

void moveCursorHome(){
softSerial.print(0xFE, BYTE);
softSerial.print("H");
}

void turnCursorOn(){
softSerial.print(0xFE, BYTE);
softSerial.print("J");
}

void turnCursorOff(){
softSerial.print(0xFE, BYTE);
softSerial.print("K");
}

void turnBlinkingCursorOn(){
softSerial.print(0xFE, BYTE);
softSerial.print("P");
}

void turnBlinkingCursorOff(){
softSerial.print(0xFE, BYTE);
softSerial.print("Q");
}

void scrollMessage(int row, int speed, char* message){
// row
// 1=First Line -> 2=Second Line

// speed
// 0=Slowest -> 9=Fastest

softSerial.print(0xFE, BYTE);
softSerial.print("S");
softSerial.print(row);
softSerial.print(speed);
softSerial.print(message);
softSerial.print(0xFE, BYTE);
}

void moveCursor(char* row, char* column){
// row
// 01=First Line -> 02=Second Line

// column
// 01=First Position -> 16=Last Position

softSerial.print(0xFE, BYTE);
softSerial.print("L");
softSerial.print(row);
softSerial.print(column);
}

void drawHorizontalGauge(int row, char* leftLabel, char* rightLabel, char* length){
// row
// 1=First Line -> 2=Second Line

// leftLabel and rightLabel
// 2 character labels

// length
// a=Empty -> k=Full (filled in from left to right)

softSerial.print(0xFE, BYTE);
softSerial.print("G");
softSerial.print(row);
softSerial.print(leftLabel);
softSerial.print(rightLabel);
softSerial.print(length);
}

void drawVerticalGauge(int height){
// height
// 0=Bottom -> 8=Top (filled in from bottom to top)

softSerial.print(0xFE, BYTE);
softSerial.print("V");
softSerial.print(height);

}

It’s simple, but I hacked together a power supply for the Arduino, which gets power from USB or a coaxial input from a transformer. I wanted to only run one brick, wall wart, so I hacked a USB cable. There are 4 wires in the USB cable (from pinouts.ru):