Problem with api & virtual pin

Need Help With My Project
1

using “Write pin value via GET” API on the virtual pins, there is a change in status regardless of the value sent … you can also not enter the value, it changes status anyway …

2

Paste here the exact API calls you are making but don’t show your actual token.

3

My request:

http://myip.net:8080/xxxtoken/update/V6?value=1

same if sending:

http://myip.net:8080/xxxtoken/update/V6
or
http://myip.net:8080/xxxtoken/update/V6=0

the pin changes status with every request!!!

on the digital pins, the operation is correct

4

I have a button in SWITCH mode on V10, just checked the following and they worked as expected.

http://blynk-cloud.com/xxxtokenxxx/update/V10?value=1
http://blynk-cloud.com/xxxtokenxxx/update/V10?value=0
Was the project built on Android or iOS?

Do you have latest app and latest libraries?

Cloud or local server?

Is IP LAN or WAN?

5

IP is Wan, server is local, my virtual pin is switch
the server is updated to the latest version and also the library on the arduino CPU…
I use both Android and iPhone with the same project

try to send the request without the value … my server does the same thing …

6

Perhaps do a quick cloud server test and then we know the issue is with the local server.
Either local server is not correctly configured or a bug.

How is the Arduino connected to the server (Ethernet, USB, ESP etc)?
Which Arduino are you using?

7

I’m using arduino mega connected via Ethernet shield w5100 … the defect does it with all the virtual pins while the digital ones work fine … my software reads the status of the virtual pin to turn on or off a lamp, (ON if 1 it is OFF if 0) but at each call it performs state inversion

8

Why would you need that if you are using SWITCH mode and API calls?
I’m now suspecting you wrote bad code :slight_smile:

9

the code is simple …

BLYNK_WRITE(V6) {
 if (param.asInt() == 1 {
digitalWrite(6, HIGH); //Spegni alimentatore
} else {
digitalWrite(6, LOW); //Accendi alimentatore
}

with the API call I would like to set to 1 or 0 the virtual pin do not switch to every call

using blynk from the smartphone works all regularly, the defect shows up only with the API call

10

Slip a Serial.println() command in there to show param.asInt() and test on both local and cloud server.

11

tried … change the status of param to each call …
the strange thing is also that if I do not insert the value (http://myip.net:8080/xxxtoken/update/V6?value=) for him it is the same … should give a missed parameter error

12

You tried on local AND cloud server?

Actually if I skip the 0 or 1 it doesn’t show a missed parameter, presumably because it is taking the parameter as != 1 (but not actually zero).
This is confirmed in the Terminal widget I have in the project and DOES NOT turn the button off.

Anyway that is another issue and you should be entering the full url.

13

I try on the cloud and I’ll tell you later, thanks intently …

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