Bugs in Blynk relay switch

Issues and Errors
1

Sir,
I have tried Blynk in Arduino uno with ethernet shield using blynk ethernet librery, I created 4 relay control, it is working but some time multiple relay is on or off while pressing a single button.

2

Hi, welcome to blynk, post your code, are you using a relay shield or custom relay board?

3

Sir,
I used ethernet librery sample code with auth and ip changed,and relay module not shield but relay board is functioning well with other code.

#define BLYNK_PRINT Serial // Comment this out to disable prints and save space
#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = “YourAuthToken”;

void setup()
{
Serial.begin(9600);
Blynk.begin(auth);
// You can also specify server.
// For more options, see BoardsAndShields/Arduino_Ethernet_Manual example
//Blynk.begin(auth, “server.org”, 8442);
//Blynk.begin(auth, IPAddress(192,168,1,100), 8888);
}

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

4

hey, maybe there’s something wrong with the wiring?
does it work without Blynk?

5

Yes, I was using the same relay module with different arduino android software.