Control A/C with blynk only simple ON/OFF code problem

Need Help With My Project
1

Hello, i need turn my A/C ON/OFF with blynk and simple two buttons.
if i remove this part of code ON function is working

BLYNK_WRITE(V1)
{
int statBUTTONB = param.asInt();
if(statBUTTONB == 1)
  {
      irsend.sendRaw(offa, sizeof(offa) / sizeof(offa[0]),khz); 
  }  
}

But if i leave it there blynk is simply offline. What i do wrong? It may be due

_Sketch uses 19946 bytes (61%) of program storage space. Maximum is 32256 bytes._
_Global variables use 2007 bytes (97%) of dynamic memory, leaving 41 bytes for local variables. Maximum is 2048 bytes._
**Low memory available, stability problems may occur.**

or not?

This is whole not working code but imo it should work.

#define BLYNK_PRINT Serial
#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>
#include <IRremote.h>

IRsend irsend;


int khz=38; 
unsigned int offa[] = {4468, 4340, 572, 1616, 572, 528, 568, 1624, 568, 1620, 572, 528, 568, 528, 576, 1616, 564, 536, 572, 528, 568, 1624, 568, 532, 572, 524, 572, 1620, 572, 1616, 564, 532, 576, 1620, 572, 528, 576, 1616, 564, 1624, 568, 1620, 572, 1616, 576, 524, 572, 1620, 572, 1616, 572, 1624, 568, 532, 564, 532, 604, 496, 572, 524, 572, 1620, 568, 528, 568, 532, 576, 1620, 620, 1568, 572, 1616, 568, 532, 572, 524, 572, 528, 568, 528, 568, 532, 572, 528, 568, 532, 576, 520, 608, 1588, 572, 1616, 572, 1616, 568, 1620, 572, 1620, 568, 5240, 4436, 4380, 572, 1620, 572, 524, 572, 1620, 568, 1620, 572, 528, 568, 528, 568, 1624, 568, 532, 572, 528, 568, 1624, 568, 528, 568, 532, 576, 1612, 568, 1624, 568, 528, 568, 1628, 572, 528, 568, 1620, 572, 1616, 576, 1612, 568, 1620, 572, 528, 568, 1624, 576, 1616, 576, 1620, 572, 524, 572, 528, 564, 532, 576, 524, 572, 1616, 576, 524, 572, 528, 568, 1628, 572, 1616, 564, 1624, 568, 532, 564, 532, 572, 524, 572, 528, 568, 532, 576, 524, 572, 528, 568, 528, 576, 1620, 572, 1616, 564, 1624, 568, 1620, 572, 1620, 572};

unsigned int cold[] = {4468, 4344, 576, 1616, 564, 532, 576, 1620, 572, 1616, 576, 524, 572, 528, 568, 1620, 568, 532, 564, 536, 572, 1624, 568, 528, 576, 524, 572, 1616, 568, 1624, 568, 528, 576, 1620, 572, 528, 568, 532, 576, 1616, 576, 1616, 572, 1616, 568, 1620, 572, 1620, 572, 1620, 568, 1628, 564, 1624, 568, 532, 596, 500, 604, 496, 600, 500, 596, 504, 592, 508, 600, 500, 596, 1592, 600, 500, 596, 504, 600, 496, 600, 500, 596, 504, 604, 496, 600, 1596, 596, 504, 600, 1592, 600, 1588, 604, 1588, 592, 1596, 596, 1592, 600, 1592, 568, 5244, 4476, 4344, 596, 1596, 596, 500, 596, 1600, 604, 1584, 596, 504, 592, 504, 600, 1588, 596, 504, 600, 504, 592, 1600, 592, 504, 604, 496, 600, 1588, 604, 1584, 596, 504, 604, 1592, 596, 504, 592, 508, 600, 1592, 600, 1588, 604, 1584, 596, 1592, 600, 1592, 600, 1592, 600, 1592, 600, 1592, 600, 496, 600, 500, 592, 508, 600, 496, 600, 500, 596, 504, 600, 500, 596, 1592, 600, 500, 596, 504, 592, 504, 604, 496, 600, 500, 596, 504, 600, 1596, 596, 500, 596, 1596, 596, 1596, 596, 1592, 600, 1588, 604, 1584, 596, 1596, 564, 41416, 224};

char auth[] = "323********************";   //blynk token
 
void setup()
{
Serial.begin(9600);
Blynk.begin(auth);

//Blynk.virtualWrite(V0, 0);
//Blynk.virtualWrite(V1, 0);
//Blynk.syncAll();
}

BLYNK_WRITE(V0)
{
int statBUTTON = param.asInt(); 
if(statBUTTON == 1)
  {
      irsend.sendRaw(cold, sizeof(cold) / sizeof(cold[0]),khz); 
  }
}

BLYNK_WRITE(V1)
{
int statBUTTONB = param.asInt();
if(statBUTTONB == 1)
  {
      irsend.sendRaw(offa, sizeof(offa) / sizeof(offa[0]),khz); 
  }  
}

void loop() 
{
Blynk.run();
}

please help me im out of ideas blynk is OFFLINE with this code. Using Arduino UNO with ethernet shield.IR led is on PIN D3 nothing more is connected.

2

I’m not familiar with this IRremote library but looking at your code, when you irsend.sendRaw(offa, sizeof(offa) / sizeof(offa[0]),khz); you send the entire offa and I bet it takes a long time resulting in a blocking function and doesn’t blynk to communicate.

The library https://github.com/z3t0/Arduino-IRremote has a lot of examples, aren’t you able to find your A/C there and use the specific example instead of this sendRaw?

3

thank you, im trying to figure out how irsend works… i have irsendSAMSUNG i have hex code but still dont understand how it code if use my raw code or not or whats diff. Trying to use ESP8266 for it…should it work? with sendRaw.

4

solved :slight_smile:
i switched to ESP8266 12-E and edited code to it.

working code for anyone in future

//#define BLYNK_PRINT Serial
//#include <SPI.h>
#ifndef UNIT_TEST
#include <Arduino.h>
#endif
#include <IRremoteESP8266.h>
#include <IRsend.h>
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#define IR_LED 4
IRsend irsend(IR_LED);

char auth[] = "*************";
char ssid[] = "*************";
char pass[] = "************";
int khz=38; 


uint16_t rawDataoff[201] = {4468, 4340, 572, 1616, 572, 528, 568, 1624, 568, 1620, 572, 528, 568, 528, 576, 1616, 564, 536, 572, 528, 568, 1624, 568, 532, 572, 524, 572, 1620, 572, 1616, 564, 532, 576, 1620, 572, 528, 576, 1616, 564, 1624, 568, 1620, 572, 1616, 576, 524, 572, 1620, 572, 1616, 572, 1624, 568, 532, 564, 532, 604, 496, 572, 524, 572, 1620, 568, 528, 568, 532, 576, 1620, 620, 1568, 572, 1616, 568, 532, 572, 524, 572, 528, 568, 528, 568, 532, 572, 528, 568, 532, 576, 520, 608, 1588, 572, 1616, 572, 1616, 568, 1620, 572, 1620, 568, 5240, 4436, 4380, 572, 1620, 572, 524, 572, 1620, 568, 1620, 572, 528, 568, 528, 568, 1624, 568, 532, 572, 528, 568, 1624, 568, 528, 568, 532, 576, 1612, 568, 1624, 568, 528, 568, 1628, 572, 528, 568, 1620, 572, 1616, 576, 1612, 568, 1620, 572, 528, 568, 1624, 576, 1616, 576, 1620, 572, 524, 572, 528, 564, 532, 576, 524, 572, 1616, 576, 524, 572, 528, 568, 1628, 572, 1616, 564, 1624, 568, 532, 564, 532, 572, 524, 572, 528, 568, 532, 576, 524, 572, 528, 568, 528, 576, 1620, 572, 1616, 564, 1624, 568, 1620, 572, 1620, 572};
uint16_t rawData[201] = {4468, 4344, 576, 1616, 564, 532, 576, 1620, 572, 1616, 576, 524, 572, 528, 568, 1620, 568, 532, 564, 536, 572, 1624, 568, 528, 576, 524, 572, 1616, 568, 1624, 568, 528, 576, 1620, 572, 528, 568, 532, 576, 1616, 576, 1616, 572, 1616, 568, 1620, 572, 1620, 572, 1620, 568, 1628, 564, 1624, 568, 532, 596, 500, 604, 496, 600, 500, 596, 504, 592, 508, 600, 500, 596, 1592, 600, 500, 596, 504, 600, 496, 600, 500, 596, 504, 604, 496, 600, 1596, 596, 504, 600, 1592, 600, 1588, 604, 1588, 592, 1596, 596, 1592, 600, 1592, 568, 5244, 4476, 4344, 596, 1596, 596, 500, 596, 1600, 604, 1584, 596, 504, 592, 504, 600, 1588, 596, 504, 600, 504, 592, 1600, 592, 504, 604, 496, 600, 1588, 604, 1584, 596, 504, 604, 1592, 596, 504, 592, 508, 600, 1592, 600, 1588, 604, 1584, 596, 1592, 600, 1592, 600, 1592, 600, 1592, 600, 1592, 600, 496, 600, 500, 592, 508, 600, 496, 600, 500, 596, 504, 600, 500, 596, 1592, 600, 500, 596, 504, 592, 504, 604, 496, 600, 500, 596, 504, 600, 1596, 596, 500, 596, 1596, 596, 1596, 596, 1592, 600, 1588, 604, 1584, 596, 1596, 564, 41416, 224};

void setup()
{
irsend.begin();
Serial.begin(115200, SERIAL_8N1, SERIAL_TX_ONLY);
Blynk.begin(auth, ssid, pass);
}

void loop() 
{
Blynk.run();

}

BLYNK_WRITE(V0)
{
int statBUTTON = param.asInt(); 
if(statBUTTON == 1)
  {
      irsend.sendRaw(rawData, 201, 38);
  }
}

BLYNK_WRITE(V1)
{
int statBUTTONB = param.asInt();
if(statBUTTONB == 1)
  {
      irsend.sendRaw(rawDataoff, 201, 38);
  }  
  
}