I am creating 3 LEDs that will light up by a remote. I am able to light up the LEDs individually but I need the power button to shut off all of the LEDs. How can I create a 4th case to turn off all LEDs?
#include <IRremote.h>
int RECV_PIN = 3; // the pin where you connect the output pin of TSOP4838
int led1 = 2;
int led2 = 4;
int led3 = 7;
int itsONled[] = {0,0,0,0};
/* the initial state of LEDs is OFF (zero)
the first zero must remain zero but you can
change the others to 1's if you want a certain
led to light when the board is powered */
#define code1 12495 // code received from button A
#define code2 6375 // code received from button B
#define code3 31365 // code received from button C
IRrecv irrecv(RECV_PIN);
decode_results results;
void setup()
{
Serial.begin(9600); // you can comment this line
irrecv.enableIRIn(); // Start the receiver
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
pinMode(led3, OUTPUT);
}
void loop() {
if (irrecv.decode(&results)) {
unsigned int value = results.value;
switch(value) {
case code1:
if(itsONled[1] == 1) { // if first led is on then
digitalWrite(led1, LOW); // turn it off when button is pressed
itsONled[1] = 0; // and set its state as off
} else { // else if first led is off
digitalWrite(led1, HIGH); // turn it on when the button is pressed
itsONled[1] = 1; // and set its state as on
}
break;
case code2:
if(itsONled[2] == 1) {
digitalWrite(led2, LOW);
itsONled[2] = 0;
} else {
digitalWrite(led2, HIGH);
itsONled[2] = 1;
}
break;
case code3:
if(itsONled[3] == 1) {
digitalWrite(led3, LOW);
itsONled[3] = 0;
} else {
digitalWrite(led3, HIGH);
itsONled[3] = 1;
}
break;
}
Serial.println(value); // you can comment this line
irrecv.resume(); // Receive the next value
}
}
Related
I have these two sets of code and they both run fine on their own, but when I am trying to merge them together I am getting a ton of error messages. I'm new to coding and don't really know a whole lot so I was wondering if someone could just quickly look it over and see what's wrong. The compiler is saying that there is an expected unqualified id before the '{' token at the bottom where I have the code for the pushbutton. However I have tried and removed this and then I get the same message but instead of '{' it says 'if'
Thank you very much
EDIT: I don't know what properly formatting an error message looks like but here is my attempt:
Complete_Code:69:1: error: expected unqualified-id before '{' token
{
^
exit status 1
expected unqualified-id before '{' token
Here is the code in question
int pinButton = 5;
#include <Servo.h>
int servo1Pin = 8;
Servo servo1;
#include <Servo.h>
#define mainArm 0
#define jib 1
#define bucket 2
#define slew 3
Servo servo[2]; //code used for attaching upto 4 servos
byte angle[2] = {90, 90}; // middle point for servo angle
byte potPin[2] = {A1, A2}; // input pins to attach your potentiometers
byte servoPin[2] = {7, 6};
void setup() {
Serial.begin(9600);
Serial.println("Starting DiggerCode.ino");
for (byte n = 0; n < 4; n++) {
servo[n].attach(servoPin[n]);
}
pinMode(pinButton, INPUT);
pinMode(12, OUTPUT); //red LED
pinMode(11, OUTPUT); // yellow LED
pinMode(10, OUTPUT); // green LED
servo1.attach(servo1Pin);
}
void loop() {
readPotentiometers();
moveServos();
delay(10);
}
void readPotentiometers() {
int potVal;
for (byte n = 0; n < 4; n++) {
potVal = analogRead(potPin[n]);
if (potVal < 200) { // dead zone for the joystick I used is 200 to 550.
angle[n] += 1;
if (angle[n] > 170) {
angle[n] = 170;
}
}
if (potVal > 550) { // deadzone upper value
angle[n] -= 1;
if (angle[n] < 10) {
angle[n] = 10;
}
}
}
}
void moveServos() {
for (byte n = 0; n < 4; n++) {
servo[n].write(angle[n]);
}
}
{
int stateButton = digitalRead(pinButton); //read the state of the button
if (stateButton == HIGH) { //if is pressed
Serial.println("Switch = High");
digitalWrite(12, HIGH);
delay(1000);
digitalWrite(12, LOW);
digitalWrite(11, HIGH);
delay(1000);
digitalWrite(11, LOW);
digitalWrite(10, HIGH);
delay(1000);
digitalWrite(10, LOW);
delay(500);
servo1.write(180);
delay(1000);
// Make servo go to 180 degrees
servo1.write(90);
delay(1000);
servo1.write(180);
}
}
It seems you dropped the first things of function definition for some reason.
Add function return type, name and arguments for example
void anImportedFunction()
Before the part starting from
{
int stateButton = digitalRead(pinButton); //read the state of the button
You may also need to call the added function from somewhere.
I looked through your code and edited, some unnecessary and missing parts.
I checked it, no more syntax errors. I think it must work.
#include <Servo.h>
#define mainArm 0
#define jib 1
#define bucket 2
#define slew 3
Servo servo1;
Servo servo[4]; //code used for attaching upto 4 servos
int pinButton = 5;
int servo1Pin = 8;
byte angle[2] = {90, 90}; // middle point for servo angle
byte potPin[2] = {A1, A2}; // input pins to attach your potentiometers
byte servoPin[2] = {7, 6};
void setup() {
Serial.begin(9600);
Serial.println("Starting DiggerCode.ino");
for (byte n = 0; n <= 4; n++) {
servo[n].attach(servoPin[n]);
}
pinMode(pinButton, INPUT);
pinMode(12, OUTPUT); //red LED
pinMode(11, OUTPUT); // yellow LED
pinMode(10, OUTPUT); // green LED
servo1.attach(servo1Pin);
}
void loop() {
readPotentiometers();
moveServos();
delay(10);
}
void readPotentiometers() {
int potVal;
for (byte n = 0; n <= 4; n++) {
potVal = analogRead(potPin[n]);
if (potVal < 200) { // dead zone for the joystick I used is 200 to 550.
angle[n] += 1;
if (angle[n] > 170) {
angle[n] = 170;
}
}
if (potVal > 550) { // deadzone upper value
angle[n] -= 1;
if (angle[n] < 10) {
angle[n] = 10;
}
}
}
}
void moveServos() {
for (byte n = 0; n <= 4; n++) {
servo[n].write(angle[n]);
}
}
void Switch() //here instead of "Switch" you can use any function name you want
{
int stateButton = digitalRead(pinButton); //read the state of the button
if (stateButton == HIGH) { //if is pressed
Serial.println("Switch = High");
digitalWrite(12, HIGH);
delay(1000);
digitalWrite(12, LOW);
digitalWrite(11, HIGH);
delay(1000);
digitalWrite(11, LOW);
digitalWrite(10, HIGH);
delay(1000);
digitalWrite(10, LOW);
delay(500);
servo1.write(180);
delay(1000);
// Make servo go to 180 degrees
servo1.write(90);
delay(1000);
servo1.write(180);
}
}
I want to implement the function interrupt () but I don't know exactly how..In this case there is 2 for loops which can be seen in the code:I want whenever one of the 2 buttons is pressed the process inside the loop to be interrupted immediately:
void loop() {
int brightButton = digitalRead(K1);
int ldrStatus = analogRead(ldrPin);
if (brightButton == LOW && ldrStatus >= 200)
{
for (int i = 0; i < 10; i++)
{
digitalWrite(greenLed, HIGH);
tone(buzzer,400);
delay(500);
noTone(buzzer);
delay(500);
}
}
else {
digitalWrite(greenLed, LOW);
}
int tempButton = digitalRead(K2);
int valNTC = analogRead(NTC);
if (tempButton == LOW && valNTC > 512)
{
for (int i = 0; i <10; i++)
{
digitalWrite(redLed, HIGH);
tone(buzzer,450);
delay(300);
noTone(buzzer);
delay(1000);
}
}
else {
digitalWrite(redLed, LOW);
}
}
Example code from the Arduino manual:
https://www.arduino.cc/reference/en/language/functions/external-interrupts/attachinterrupt/
const byte ledPin = 13;
const byte interruptPin = 2;
volatile byte state = LOW;
void setup() {
pinMode(ledPin, OUTPUT);
pinMode(interruptPin, INPUT_PULLUP);
attachInterrupt(digitalPinToInterrupt(interruptPin), blink, CHANGE);
}
void loop() {
digitalWrite(ledPin, state);
}
void blink() {
state = !state;
}
Note that this will interrupt the for loop and return to it once the interrupt service routine is finished.
If you want to abort the for loop check the pin state in every loop cycle and break if you want to leave the for loop or return if you want to leave loop().
Of course this is not "immediately".
I have a program in Arduino that checks an LDR sensor. If it goes over the set values it will trigger an alarm. How do I set it so once triggered it stays on until say a button push is detected to disarm it?
Code:
const int ledPin = 8;
const int buzzerPin = 4;
const int ldrPin = A0;
void setup () {
Serial.begin(9600);
pinMode(ledPin, OUTPUT);
pinMode(buzzerPin, OUTPUT);
pinMode(ldrPin, INPUT);
}
void loop() {
int ldrStatus = analogRead(ldrPin);
if (ldrStatus >= 30) {
noTone(buzzerPin);
digitalWrite(ledPin, LOW);
} else {
tone(buzzerPin, 100);
digitalWrite(ledPin, HIGH);
delay(100);
noTone(buzzerPin);
digitalWrite(ledPin, LOW);
delay(100);
Serial.println("----------- ALARM ACTIVATED -----------");
}
}
You should use a FLAG to fire the alarm instead of using threshold directly.
if (ldrStatus >= 30) {
AlarmFlag = true; //Set alarm
}
...
if (digitalRead(pushButton) == LOW){
AlarmFlag = false; //Turn off alarm
}
...
if (AlarmFlag == true){
Serial.println("ALARM ON");
...
}
I keep getting an error when I run this code any solutions?
{
pinMode(button2pin, INPUT, 3);
button1State= digitalRead(button1Pin 2);
}
if (button1State == LOW)
{
}
This code presumes that you have connected one side of your switch to digital pin 3 and the other side to ground and that your button is normally open.
const int button2pin = 3;
int button2State = 0;
void setup(){
pinMode(button2pin, INPUT_PULLUP);
Serial.begin(9600); // for debug only
}
void loop(){
button2State = digitalRead(button2pin);
if(button2State == LOW){
Serial.print("Button 2 pressed"); // for debug only
}
}
This project turns on the light when the button is pressed. Maybe can help you with your problem.
int buttonPin = 2;
int ledPin = 5;
//This var read the state of Buttonpin
int buttonState = 0;
void setup() {
// set the pin as output
pinMode(ledPin , OUTPUT);
// set the pin as input
pinMode(buttonPin , INPUT);
}
void loop(){
// read the button state
buttonState = digitalRead(buttonPin );
if (buttonState == HIGH) {
digitalWrite(ledPin, HIGH);
}
else {
digitalWrite(ledPin, LOW);
}
}
So the code is not working properply, there are two leds that wont turn off "highliten" the problem. when i run the Else part of the program. i want to turn them off in the else part. :)
include
byte ledPin[] = {8, 9, 10, 11, 12, 13}; //--------------------------------.
int ledDelay; // Del 1
int direction = 1;
int currentLED = 0;
unsigned long changeTime;
int potPin = 0;
Servo myservo; // create servo object to control a servo
int potpin = 0; // analog pin used to connect the potentiometer
int val; // variable to read the value from the analog pin
int va;
void setup()
{
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, INPUT);
myservo.attach(3); // attaches the servo on pin 9 to the servo object
Serial.begin(9600);
for (int x=0; x<6; x++) {
pinMode(ledPin[x], OUTPUT); }
changeTime = millis();
}
void loop() {
int on = digitalRead(6);
if (on == HIGH)
{
myservo.attach(3);
// Here is the problem!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
if va < 523)
{
digitalWrite(5, HIGH);
}
else if (va > 555)
{
digitalWrite(4, HIGH);
}
else
{
digitalWrite(4, LOW);
digitalWrite(5, LOW);
}
// Here is the problem!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
digitalWrite(8, LOW);
digitalWrite(9, LOW);
digitalWrite(10, LOW);
digitalWrite(11, LOW);
digitalWrite(12, LOW);
digitalWrite(13, LOW);
va = analogRead(potPin); // reads the value of the potentiometer (value between 0 and 1023)
val = map(va, 0, 1023, 0, 179); // scale it to use it with the servo (value between 0 and 180)
myservo.write(val); // sets the servo position according to the scaled value
delay(1); // waits for the servo to get there
}
else
{
myservo.detach();
digitalWrite(5, LOW);
digitalWrite(4, LOW);
ledDelay = analogRead(potPin) / 4;
if ((millis() - changeTime) > ledDelay)
{
changeLED();
changeTime = millis();
}
}
}
void changeLED() {
for (int x=0; x<6; x++)
{
digitalWrite(ledPin[x], LOW);
}
digitalWrite(ledPin[currentLED], HIGH);
currentLED += direction;
if (currentLED == 6) {direction = -1;}
if (currentLED == 0) {direction = 1;}
}
in advance Thank you!
Right at the end of the sketch you have the following line:
if (currentLED == 6) { direction = -1; }
I think, without actually running the program, that the problem is here. In the previous line you have added one to the value of currentLED and you are checking to see if you have gone off the end of the ledPin array. You change the direction but you don't reset the currentLED position to be back inside the ledPin range.
The next time changeLED is called it tries to call digitalWrite(ledPin[currentLED], HIGH); but the value of currentLED is 6, which is outside the ledPin array. The Arduino probably gets upset at this point.
I think you simply need to change the statement to check whether currentLED == 5 rather than 6. This will mean that next time that changeLED is called the last LED will be turned on and the value of currentLED will be decremented (direction == -1), keeping it inside the ledPin range.