Hello everybody!I have a problem and i would like your help!I am not very good with codes but i learned some things,as a result i made an app with arduino and bluetooth in order to control 2 devices or lights!Now i want a way to control this devices with both app and wall push buttons!For instance,when i turn on the led2 via app, i want to turn it off via app or wall push button.Also when i turn off the the led2 via app or wall push button i want to turn it on via app or push button!I spent a lot of hours and days but i cannot find the way.Above is the code of arduino.There is also a zip archive!
char incomingByte;
int LED2 = 2;
int LED3 = 3;
const int buttonPin1 = 7; // the number of the pushbutton pin
const int buttonPin2 = 8;
int ledState = HIGH; // the current state of the output pin
int buttonState; // the current reading from the input pin
int lastButtonState = LOW; // the previous reading from the input pin
unsigned long lastDebounceTime = 0; // the last time the output pin was toggled
unsigned long debounceDelay = 50; // the debounce time; increase if the output flickers
void setup() {
Serial.begin(9600);
pinMode(buttonPin1, INPUT);
pinMode(buttonPin2, INPUT);
pinMode(LED2, OUTPUT);
pinMode(LED3, OUTPUT);
digitalWrite(LED2, ledState);
digitalWrite(LED3, ledState);
}
void loop() {
if (Serial.available() > 0) {
incomingByte = Serial.read();
if(incomingByte == '2') {digitalWrite(LED2, HIGH); }
if(incomingByte == '6') {digitalWrite(LED2, LOW); }
if(incomingByte == '4') {digitalWrite(LED3, HIGH); }
if(incomingByte == '8') {digitalWrite(LED3, LOW); }
}
int reading = digitalRead(buttonPin1);
if (reading != lastButtonState) {
// reset the debouncing timer
lastDebounceTime = millis();
}
if ((millis() - lastDebounceTime) > debounceDelay) {
// whatever the reading is at, it's been there for longer
// than the debounce delay, so take it as the actual current state:
// if the button state has changed:
if (reading != buttonState) {
buttonState = reading;
// only toggle the LED if the new button state is HIGH
if (buttonState == HIGH) {
ledState = !ledState;
}
}
// set the LED:
digitalWrite(LED2, ledState);
// save the reading. Next time through the loop,
// it'll be the lastButtonState:
lastButtonState = reading;
}
int now= digitalRead(buttonPin2);
if (now != lastButtonState) {
// reset the debouncing timer
lastDebounceTime = millis();
}
if ((millis() - lastDebounceTime) > debounceDelay) {
// whatever the reading is at, it's been there for longer
// than the debounce delay, so take it as the actual current state:
// if the button state has changed:
if (now != buttonState) {
buttonState = now;
// only toggle the LED if the new button state is HIGH
if (buttonState == HIGH) {
ledState = !ledState;
}
}
// set the LED:
digitalWrite(LED3, ledState);
// save the reading. Next time through the loop,
// it'll be the lastButtonState:
lastButtonState = now;
}
}
Also i post the arduino code without buttons!As i said, i want to put button in order to control lights with both app and wall push buttons!How can i do this?Has anyone done it?
Hello ieee488, i connected the push button with arduino but i am doing something wrong with the code and it does not work correctly!Arduino drives relay!I want to turn on-off the Led2 for example with one wall push button or app
I would like the help of someone who is good with code or did it!
above is a photo of connection:
Perhaps you should consider learning how to make the wall push button part to work and then put the two parts together. Sounds like your code doesn't work for that.
I found this and i tested!It works good!When i put other push buttons and led,it does not work! I make something wrong! how can i put 5 push buttons and 5 led inside in this sketch?
=========== Comm Legend ===========
10 - LED Off
20 - LED On
255 - Request from app for local variable status
===================================
Created by Matt Kachur
Dec 27 2015
This example code is in the public domain.
*/
#include <SoftwareSerial.h>
SoftwareSerial mySerial(2, 3); // Sets Arduino (RX, TX) pins
#define defLEDpin 13
#define defButtonpin 8
byte lastRead;
byte currentRead;
byte ledStatus = 10; // initialize LED in OFF state
int buttonState = LOW;
int lastButtonState = LOW;
long lastDebounceTime = 0; // the last time the output pin was toggled
long debounceDelay = 20; // the debounce time; increase if the output flickers
void setup() {
pinMode(defLEDpin, OUTPUT); // LED pin
pinMode(defButtonpin, INPUT); // Button pin
digitalWrite(defLEDpin, LOW); //initialize with LED Off
mySerial.begin(9600);
}
void loop() {
// if there's any serial bytes available, read them:
while (mySerial.available() > 0) {
currentRead = mySerial.read();
// Read all bytes until a zero is received, store the bytes received
// before the zero.
if (currentRead != NULL) {
lastRead = currentRead;
}
// once a zero is received, evaluate all the bytes read before the zero
if (currentRead == NULL) {
if (lastRead == 255) { // 255 is request for current status
// send back LED status
mySerial.write(ledStatus);
}
if (lastRead == 10) {
ledStatus = 10;
digitalWrite(defLEDpin, LOW);
mySerial.write(ledStatus);
}
if (lastRead == 20) {
ledStatus = 20;
digitalWrite(defLEDpin, HIGH);
mySerial.write(ledStatus);
}
}
}
// LOCAL BUTTON LED CONTROL
// read the state of the button into a local variable
int buttonReading = digitalRead(defButtonpin);
// If the button state has changed, due to noise OR pressing
if (buttonReading != lastButtonState) {
// reset the debouncing timer
lastDebounceTime = millis();
}
// check to see if the current state has been the same for longer than
// the debounce delay, if true make, it the current state
if ((millis() - lastDebounceTime) > debounceDelay) {
// if the "new" button state is different from the current,
// take actions for a button press
if (buttonReading != buttonState) {
buttonState = buttonReading;
if (buttonState == HIGH) {
if (ledStatus == 10) {
ledStatus = 20;
digitalWrite(defLEDpin, HIGH);
}
else {
ledStatus = 10;
digitalWrite(defLEDpin, LOW);
}
}
}
}
// Save the current button state so it is updated for the next loop iteration
lastButtonState = buttonReading;
}
It seems that no one cares! [I do! Please use code tags, the </> button. And delete the extra blank lines. Thanks, Moderator]
I added an extra button and led to the previous sketch.I don't know if it is correct but it seems to work well with each push button!The modification that i did to app inventor does not work and the app stucks!
i appreciate if someone can help.I include a zip of arduino code and aia app inventor.
#include <SoftwareSerial.h>
SoftwareSerial mySerial(2, 3); // Sets Arduino (RX, TX) pins
#define defLEDpin 13
#define defButtonpin 8
byte lastRead;
byte currentRead;
byte ledStatus = 10; // initialize LED in OFF state
int buttonState = LOW;
int lastButtonState = LOW;
long lastDebounceTime = 0; // the last time the output pin was toggled
long debounceDelay = 20; // the debounce time; increase if the output flickers
//above are the data that i add for the second button and led.
#define defLEDpin2 4
#define defButtonpin2 7
byte currentRead2;
byte ledStatus2 = 30;//// initialize LED in OFF state
int buttonState2 = LOW;
int lastButtonState2 = LOW;
void setup() {
pinMode(defLEDpin, OUTPUT); // LED pin
pinMode(defButtonpin, INPUT); // Button pin
digitalWrite(defLEDpin, LOW); //initialize with LED Off
//data for second button and led
pinMode(defLEDpin2, OUTPUT); // LED pin
pinMode(defButtonpin2, INPUT); // Button pin
digitalWrite(defLEDpin2, LOW); //initialize with LED Off
mySerial.begin(9600);
}
void loop() {
// if there's any serial bytes available, read them:
while (mySerial.available() > 0) {
currentRead = mySerial.read();
// Read all bytes until a zero is received, store the bytes received
// before the zero.
if (currentRead != NULL) {
lastRead = currentRead;
}
// once a zero is received, evaluate the bytes read before the zero
if (currentRead == NULL) {
if (lastRead == 255) { // 255 is request for current status
// send back LED status
mySerial.write(ledStatus);
}
if (lastRead == 10) {
ledStatus = 10;
digitalWrite(defLEDpin, LOW);
mySerial.write(ledStatus);
}
if (lastRead == 20) {
ledStatus = 20;
digitalWrite(defLEDpin, HIGH);
mySerial.write(ledStatus);
}
}
}
// for the second button and led
// if there's any serial bytes available, read them:
while (mySerial.available() > 0) {
currentRead2 = mySerial.read();
// Read all bytes until a zero is received, store the bytes received
// before the zero.
if (currentRead2 != NULL) {
lastRead = currentRead2;
}
// once a zero is received, evaluate the bytes read before the zero
if (currentRead2 == NULL) {
if (lastRead == 255) { // 255 is request for current status
// send back LED status
mySerial.write(ledStatus2);
}
if (lastRead == 30) {
ledStatus2 = 30;
digitalWrite(defLEDpin2, LOW);
mySerial.write(ledStatus2);
}
if (lastRead == 35) {
ledStatus2 = 35;
digitalWrite(defLEDpin2, HIGH);
mySerial.write(ledStatus2);
}
}
}
// LOCAL BUTTON LED CONTROL
// read the state of the button into a local variable
int buttonReading = digitalRead(defButtonpin);
// If the button state has changed, due to noise OR pressing
if (buttonReading != lastButtonState) {
// reset the debouncing timer
lastDebounceTime = millis();
}
// check to see if the current state has been the same for longer than
// the debounce delay, if true make, it the current state
if ((millis() - lastDebounceTime) > debounceDelay) {
// if the "new" button state is different from the current,
// take actions for a button press
if (buttonReading != buttonState) {
buttonState = buttonReading;
if (buttonState == HIGH) {
if (ledStatus == 10) {
ledStatus = 20;
digitalWrite(defLEDpin, HIGH);
}
else {
ledStatus = 10;
digitalWrite(defLEDpin, LOW);
}
}
}
}
// LOCAL BUTTON LED CONTROL for the second led and button
// read the state of the button into a local variable
int buttonReading2 = digitalRead(defButtonpin2);
// If the button state has changed, due to noise OR pressing
if (buttonReading2 != lastButtonState2) {
// reset the debouncing timer
lastDebounceTime = millis();
}
// check to see if the current state has been the same for longer than
// the debounce delay, if true make, it the current state
if ((millis() - lastDebounceTime) > debounceDelay) {
// if the "new" button state is different from the current,
// take actions for a button press
if (buttonReading2 != buttonState2) {
buttonState2 = buttonReading2;
if (buttonState2 == HIGH) {
if (ledStatus2 == 30) {
ledStatus2 = 35;
digitalWrite(defLEDpin2, HIGH);
}
else {
ledStatus2 = 30;
digitalWrite(defLEDpin2, LOW);
}
}
}
}
// Save the current button state so it is updated for the next loop iteration
lastButtonState = buttonReading;
// Save the current button state so it is updated for the next loop iteration
lastButtonState2 = buttonReading2;
}
It's a matter of remembering the state of the light.
Then continuously checking for a command from the app or a press of the wall button.
If one of them happens, turn off or turn on the light depending on its previous state.
Remember the new state.
I really don't want to spend anytime debugging your code.
i am having the same problem. if Bluetooth begins then wall button not working and if wall button works Bluetooth commands fails. how to control 1 relay switch with to different inputs
OK as both of your states are controlled by the Arduino (i assume the Bluetooth app is talking to the arduino through some shield ?) then you need to think of the concept of a Virtual Button (State)
Firstly - what sort of button is it ? Is it a momentary push or is it a latching button ?
You need to poll that that input and see if it changes state from on (latching button) or momentary high (momentary button
When it does - use this to set a variable (say) Button_Press = Yes - have a 2nd variable LED_State = High
Do a test (pseudo code)
If Button_Press = Yes
If LED_State = High, LED_State=Low
Else If LED_State = Low, LED_State = High
End If
End If
Do the same for the Bluetooth action when it is received by the Sketch
