[SOLVED] WidgetLED in Raspberry Pi2 iPhone Blynk App

Need Help With My Project
1

Hello, This is my first time here on Blynk, I’m creating a project using Raspberry Pi2, Blynk iPhone App. I’m running blynk script using node. Everything is working fine except when I try to turn on LED using virtual pin on App using the following script. As soon I run the script with below line I’m getting error. How to turn on/off led widget using script in raspberry pi? Thank you for your help!

var vD1OpenLED = new blynk.WidgetLED(64);
^
TypeError: undefined is not a function
at Object. (/home/pi/GarageDoors.js:25:18)
at Module._compile (module.js:460:26)
at Object.Module._extensions…js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Function.Module.runMain (module.js:501:10)
at startup (node.js:129:16)
at node.js:814:3

2

Hi. The led widget is not yet added to js library. I’ll add it soon and notify you :slight_smile:

3

Thank you!!

What other widgets that are still not supported in js library ?

Do you have examples for each widget in js that are currently supported ?

Thank you once again!

4

I’d like to bump this. Is there any documentation on how to use each widget in js? I’m completely new to nodejs but apart from the 1 example here https://github.com/vshymanskyy/blynk-library-js, I haven’t been able to find anything else.

5

You can use blynk.WidgetLED, just like blynk.VirtualPin.
it’s APi is described here: https://github.com/vshymanskyy/blynk-library-js/blob/master/blynk.js#L354

6

Thanks for that, that’s really useful. I tried to put it to use

var blynkLib = require('/usr/local/lib/node_modules/blynk-library'),

var AUTH = 'xxxxxxxxx';

var blynk = new blynkLib.Blynk(AUTH);

var v2 = new blynk.WidgetLED(2);   //power led

v2.turnOn();

I’m not sure what I’m doing wrong. The led does not light up on the app when I run the code.

8

We have the same problem, not work the WidgetLed when active it form Raspberry Pi.
We have tried this code, in the Virtual Pin 8

var v8 = new blynk.WidgetLED(8);
v8.setValue(255);

Here other alternatives tested, but none works…

var v8 = new blynk.WidgetLED(8);
v8.TurnOn

How we can to light up the led in the APP ??? Thanks

9

Is that cloud or local server?

10

Sorry, It´s in local server, running in a Raspberry Pi.

11

What app version and server version?

12

The APP is the last, 2.3 (16 May).

For server we use NodeJs, version v0.10.29

thanks :wink:

13

I mean Blynk server version.

14

We use the NodeJs in the Raspberry for connect to Blynk Server, in the cloud. I have not a Local Blynk server.
Sorry for the confusion.

15

Are ok. It could be a bug introduced in latest Blynk server - https://github.com/blynkkk/blynk-server/issues/207. Investigating.

16

Ok, thanks for all. I waiting the solution for check my project !!

Regards

17

HI friend. I have seen that you have closed the case https://github.com/blynkkk/blynk-server/issues/2075.

But WidgetLEd don´t work for me. Do you know where is the problem? Can you check it?

Regards

18

It is not so simple. Usual process is

make fix -> test fix -> deploy fix with many other changes.

It will take at least few days.

19

Ok, no problem.

Thank you so much.

20

HI Dmiitriy,
There are any news about this post? I checked it now, but still not work

Thanks

21

@FaramiR issue was fixed and deployed. Please show me your code you are using.