Arduino UNO Wifi rev2 with Blynk --> Compiler Error

Projects Programming
1

Hello

I am trying to compile the recomended example sketch from the Blynk Library to my Arduino UNO Wifi rev2.

Following Error appears:

Arduino: 1.8.19 (Windows Store 1.8.57.0) (Windows 10), Board: "Arduino Uno WiFi Rev2, None (ATMEGA4809)"

In file included from C:\Users\Documents\Arduino\libraries\blynk-library-master\src/Blynk/BlynkApi.h:36:0,

             from C:\Users\Documents\Arduino\libraries\blynk-library-master\src/BlynkApiArduino.h:14,

             from C:\Users\Documents\Arduino\libraries\blynk-library-master\src/Adapters/BlynkWiFiCommon.h:24,

             from C:\Users\Documents\Arduino\libraries\blynk-library-master\src/BlynkSimpleWiFiNINA.h:22,

             from C:\Users\SVENBU~1\AppData\Local\Temp\arduino_modified_sketch_998524\Arduino_MKR1010.ino:36:

C:\Users\Documents\Arduino\libraries\blynk-library-master\src/Blynk/BlynkParam.h: In member function 'long long int BlynkParam::iterator::asLongLong() const':

C:\Users\Documents\Arduino\libraries\blynk-library-master\src/Blynk/BlynkParam.h:48:50: error: 'atoll' was not declared in this scope

     long long   asLongLong() const  { return atoll(ptr); }

                                              ^~~~~

C:\Users\Documents\Arduino\libraries\blynk-library-master\src/Blynk/BlynkParam.h:48:50: note: suggested alternative: 'atol'

     long long   asLongLong() const  { return atoll(ptr); }

                                              ^~~~~

                                              atol

C:\Users\Documents\Arduino\libraries\blynk-library-master\src/Blynk/BlynkParam.h: In member function 'long long int BlynkParam::asLongLong() const':

C:\Users\Documents\Arduino\libraries\blynk-library-master\src/Blynk/BlynkParam.h:89:46: error: 'atoll' was not declared in this scope

 long long   asLongLong() const  { return atoll(buff); }

                                          ^~~~~

C:\Users\Documents\Arduino\libraries\blynk-library-master\src/Blynk/BlynkParam.h:89:46: note: suggested alternative: 'atol'

 long long   asLongLong() const  { return atoll(buff); }

                                          ^~~~~

                                          atol

exit status 1

Error compiling for board Arduino Uno WiFi Rev2.

I want to compile the following Example Sketch:

#define BLYNK_PRINT Serial

/* Fill-in your Template ID (only if using Blynk.Cloud) */
#define BLYNK_TEMPLATE_ID   "TMPLVFNNCOih"
#include <SPI.h>
#include <WiFiNINA.h>
#include <BlynkSimpleWiFiNINA.h>

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

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "ssid";
char pass[] = "password";

void setup()
{
  // Debug console
  Serial.begin(9600);

  Blynk.begin(auth, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, ssid, pass, "blynk-cloud.com", 80);
  //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8080);
}

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

Does anyone understand this error??

Thanks for helping
Sven

2

@svenbu, your topic has been moved to a more suitable location on the forum.

1 Like
3

Where is your function atoll()

4

I dint use this function. I dont even know what it is doing. It must be a function in one of the libraries , problably the blynk.

5

https://www.cplusplus.com/reference/cstdlib/atoll/

6

Does anyone know how to fix that? Is the Arduino not working with atoll()?

7

Some do, some don't depending on the processor used
For instance this compiles with an ESP32 as the target

void setup()
{
  Serial.begin(115200);
  char aLongLong[] = {"2147483647"};
  long long aVariable;
  aVariable = atoll(aLongLong);
  Serial.println(aVariable);
}

void loop()
{
}

but it won't compile for a Uno with a 328 processor

8

okey, thanks for the answer. Do you know if I can change that somehow? Is there for example something to doo, that the library still works, but the code doesnt write things to longlong?

The Arduino uno wifi rev 2 has the ATMEGA4809.

9

No guarantees, but add this line immediately before the setup() function and report back what happens when you compile the sketch

#define BLYNK_NO_LONGLONG
10

Thanks for your Answer
Sadly, It happens the same as before.. same Error

11

Then I am out of ideas

12

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