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Pls help me with my code
I want to make home automation project using arduino. I want to control multiple led, password protected door and temperature showing. I have 3 code for these 3 feature. But I want to combine them together to control it from 1 android device. i just want to make work like that- if i press "Q" command then it will show temperature. if i press "R" command then it will work like multiple led controller. if i press "S" command then it will work like password protected locker.
This is the code for bluetooth led control:-
int relay1 = A0;<br> int relay2 = A1;
int relay3 = A2;
int relay4 = A3;
String readString;
void setup() {
Serial.begin(9600);
pinMode(relay1, OUTPUT);
pinMode(relay2, OUTPUT);
pinMode(relay3, OUTPUT);
pinMode(relay4, OUTPUT);
}
void loop() {
while (Serial.available()) {
delay(3);
char c = Serial.read();
readString += c;
}
if (readString.length() >0) {
if (readString == "A")
{
digitalWrite(relay1, HIGH);
Serial.print("Relay 1 is On");
}
if (readString == "W")
{
digitalWrite(relay1, LOW);
Serial.print("Relay 1 is Off");
}
//relay2
if (readString == "B")
{
digitalWrite(relay2, HIGH);
Serial.print("Relay 2 is On");
}
if (readString == "X")
{
digitalWrite(relay2, LOW);
Serial.print("Relay 2 is Off");
}
//relay3
if (readString == "C")
{
digitalWrite(relay3, HIGH);
Serial.print("Relay 3 is On");
}
if (readString == "Y")
{
digitalWrite(relay3, LOW);
Serial.print("Relay 3 is Off");
}
//relay4
if (readString == "D")
{
digitalWrite(relay4, HIGH);
Serial.print("Relay 4 is On");
}
if (readString == "Z")
{
digitalWrite(relay4, LOW);
Serial.print("Relay 4 is Off");
}
//All on / off
if (readString == "E")
{
digitalWrite(relay1, HIGH);
digitalWrite(relay2, HIGH);
digitalWrite(relay3, HIGH);
digitalWrite(relay4, HIGH);
Serial.print("All Relay Is On");
}
if (readString == "F")
{
digitalWrite(relay1, LOW);
digitalWrite(relay2, LOW);
digitalWrite(relay3, LOW);
digitalWrite(relay4, LOW);
Serial.print("All Relay Is Off");
}
//next
readString="";
}
}This is the code for password control door:
String inputString = "";<br> String command = "";
String value = "";
String password = "test123"; //setpassword here
boolean stringComplete = false;
int relay = 2;
int greenLed = 5;
int redLed = 6;
void setup(){
Serial.begin(9600); // make sure it is the same baudrate as your bluetooth module
inputString.reserve(50);
command.reserve(50);
value.reserve(50);
boolean stringOK = false;
pinMode(relay, OUTPUT);
digitalWrite(relay, HIGH);
pinMode(greenLed, OUTPUT);
pinMode(redLed, OUTPUT);
digitalWrite(redLed, HIGH);
}
void loop(){
if (stringComplete) {
delay(100);
int pos = inputString.indexOf('=');
if (pos > -1) {
command = inputString.substring(0, pos);
value = inputString.substring(pos+1, inputString.length()-1); // extract command up to \n exluded
if(!password.compareTo(value) && (command == "OPEN")){
openDoor();
Serial.println(" OPEN");
delay(100);
}
else if(!password.compareTo(value) && (command == "CLOSE")){
closeDoor();
Serial.println(" CLOSE");
delay(100);
}
else if(password.compareTo(value)){
Serial.println(" WRONG");
delay(100);
}
}
inputString = "";
stringComplete = false;
}
}
void serialEvent() {
while (Serial.available()) {
char inChar = (char)Serial.read();
//Serial.write(inChar);
inputString += inChar;
if (inChar == '\n' || inChar == '\r') {
stringComplete = true;
}
}
}
void openDoor(){
digitalWrite(relay, LOW);
digitalWrite(redLed, LOW);
digitalWrite(greenLed, HIGH);
}
void closeDoor(){
digitalWrite(relay, HIGH);
digitalWrite(redLed, HIGH);
digitalWrite(greenLed, LOW);
}This is the code for temperature showing:
int data_pin = 9;<br> int vcc_pin=8;
int gnd_pin=10;
boolean result[41]; //holds the result
int interval=2000; //Sample every 2 seconds
unsigned int temp; //in celcius
unsigned int humidity; //in %RH
void setup() {
//Supply power to DHT11 (Uses upto 2.5mA)
pinMode(gnd_pin, OUTPUT);
pinMode(vcc_pin, OUTPUT);
digitalWrite(gnd_pin,LOW);
digitalWrite(vcc_pin,HIGH);
//Initiate Serial for Bluetooth Communication
Serial.begin(9600);
}
void loop() {
//Pause before taking next measurement
delay(interval);
//Trigger reading by holding data pin low for 18ms
pinMode(data_pin, OUTPUT);
digitalWrite(data_pin,LOW);
delay(18);
digitalWrite(data_pin,HIGH);
pinMode(data_pin, INPUT_PULLUP);
//read 41 bits of signal
for(int i=0;i<=40;i++){
result[i]=(pulseIn(data_pin, HIGH)>40);
}
//Extract Humidity (from byte 1)
humidity=0;
for (int i=1;i<=8;i++){
humidity=humidity<<1;
if (result[i]) humidity|=1;
}
//Extract Temperature (from Byte 3)
temp=0;
for (int i=17;i<=24;i++){
temp=temp<<1;
if (result[i]) temp|=1;
}
//Send data over Bluetooth
Serial.print("*T"+String(temp)+"*");
Serial.print("*H"+String(humidity)+"*");
}This is the code i tried to combine all together.i just want to make work like that- if i press "Q" command then it will show temperature. if i press "R" command then it will work like multiple led controller. if i press "S" command then it will work like password protected locker.I tried `if(readString == "Q")` , `if(readString == "R")` , `if(readString == "S")` for control the code seperately but its not working:
int data_pin = 9;<br> int vcc_pin=8;
int gnd_pin=10;
int relay1 = A0;
int relay2 = A1;
int relay3 = A2;
int relay4 = A3;
int relay = 2;
int greenLed = 5;
int redLed = 6;
boolean result[41]; //holds the result
int interval=2000; //Sample every 2 seconds
unsigned int temp; //in celcius
unsigned int humidity; //in %RH
String inputString = "";
String command = "";
String value = "";
String password = "test123"; //setpassword here
boolean stringComplete = false;
String readString;
void setup() {
//Supply power to DHT11 (Uses upto 2.5mA)
pinMode(gnd_pin, OUTPUT);
pinMode(vcc_pin, OUTPUT);
digitalWrite(gnd_pin,LOW);
digitalWrite(vcc_pin,HIGH);
pinMode(relay1, OUTPUT);
pinMode(relay2, OUTPUT);
pinMode(relay3, OUTPUT);
pinMode(relay4, OUTPUT);
pinMode(relay, OUTPUT);
digitalWrite(relay, HIGH);
pinMode(greenLed, OUTPUT);
pinMode(redLed, OUTPUT);
digitalWrite(redLed, HIGH);
inputString.reserve(50);
command.reserve(50);
value.reserve(50);
boolean stringOK = false;
//Initiate Serial for Bluetooth Communication
Serial.begin(9600);
}
void loop(){
if (readString == "Q"){
//Pause before taking next measurement
delay(interval);
//Trigger reading by holding data pin low for 18ms
pinMode(data_pin, OUTPUT);
digitalWrite(data_pin,LOW);
delay(18);
digitalWrite(data_pin,HIGH);
pinMode(data_pin, INPUT_PULLUP);
//read 41 bits of signal
for(int i=0;i<=40;i++){
result[i]=(pulseIn(data_pin, HIGH)>40);
}
//Extract Humidity (from byte 1)
humidity=0;
for (int i=1;i<=8;i++){
humidity=humidity<<1;
if (result[i]) humidity|=1;
}
//Extract Temperature (from Byte 3)
temp=0;
for (int i=17;i<=24;i++){
temp=temp<<1;
if (result[i]) temp|=1;
}
//Send data over Bluetooth
Serial.print("*T"+String(temp)+"*");
Serial.print("*H"+String(humidity)+"*");
}
if (readString == "R"){
while (Serial.available()) {
delay(3);
char c = Serial.read();
readString += c;
}
if (readString.length() >0) {
if (readString == "A")
{
digitalWrite(relay1, HIGH);
Serial.print("Relay 1 is On");
}
if (readString == "W")
{
digitalWrite(relay1, LOW);
Serial.print("Relay 1 is Off");
}
//relay2
if (readString == "B")
{
digitalWrite(relay2, HIGH);
Serial.print("Relay 2 is On");
}
if (readString == "X")
{
digitalWrite(relay2, LOW);
Serial.print("Relay 2 is Off");
}
//relay3
if (readString == "C")
{
digitalWrite(relay3, HIGH);
Serial.print("Relay 3 is On");
}
if (readString == "Y")
{
digitalWrite(relay3, LOW);
Serial.print("Relay 3 is Off");
}
//relay4
if (readString == "D")
{
digitalWrite(relay4, HIGH);
Serial.print("Relay 4 is On");
}
if (readString == "Z")
{
digitalWrite(relay4, LOW);
Serial.print("Relay 4 is Off");
}
//All on / off
if (readString == "E")
{
digitalWrite(relay1, HIGH);
digitalWrite(relay2, HIGH);
digitalWrite(relay3, HIGH);
digitalWrite(relay4, HIGH);
Serial.print("All Relay Is On");
}
if (readString == "F")
{
digitalWrite(relay1, LOW);
digitalWrite(relay2, LOW);
digitalWrite(relay3, LOW);
digitalWrite(relay4, LOW);
Serial.print("All Relay Is Off");
}
//next
readString="";
}
}
if (readString == "S"){
if (stringComplete) {
delay(100);
int pos = inputString.indexOf('=');
if (pos > -1) {
command = inputString.substring(0, pos);
value = inputString.substring(pos+1, inputString.length()-1); // extract command up to \n exluded
if(!password.compareTo(value) && (command == "OPEN")){
openDoor();
Serial.println(" OPEN");
delay(100);
}
else if(!password.compareTo(value) && (command == "CLOSE")){
closeDoor();
Serial.println(" CLOSE");
delay(100);
}
else if(password.compareTo(value)){
Serial.println(" WRONG");
delay(100);
}
}
inputString = "";
stringComplete = false;
}
}
}
void serialEvent() {
while (Serial.available()) {
char inChar = (char)Serial.read();
//Serial.write(inChar);
inputString += inChar;
if (inChar == '\n' || inChar == '\r') {
stringComplete = true;
}
}
}
void openDoor(){
digitalWrite(relay, LOW);
digitalWrite(redLed, LOW);
digitalWrite(greenLed, HIGH);
}
void closeDoor(){
digitalWrite(relay, HIGH);
digitalWrite(redLed, HIGH);
digitalWrite(greenLed, LOW);
}
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