I used examples/Export_Demo/template_esp8266 and configured and uploaded the sketch to my nodemcu. I can see in serial monitor the image is successfully uploaded and i can see the ssid being broadcasted from nodemcu. I created a new app preview on Blynk app on my Android phone.
I preview the app, login, it says there is no device I click add new device button, which doesnt do anything.
When I try by switching wifi to connect to nodeMCU, the app starts showing busy animation for ever. Please help.
• NodeMCU v3
• Oxygen OS (Android) in One plus 3t
• & Nexus 5 CyanogenMod
• Blynk server
• Blynk Library version 0.5.4
I just tried to duplicate your issue. Here is what I found. If I follow the step to create an app preview for an existing project that has had a device connected to it, it seems to work. That is after i press add new device it prompts me to enter the wifi credentials that I plan on using for the device. After adding the credentials it then looks for the device and connects/programs it.
If i try this with a new project that has yet to have a device connected to it, I get the same issue as you. I cannot advance past the add new device screen.
So I connected a device to the newly created project using the basic blynk sketch. Manually entering my wfi credentials and auth token in that program. Once I connected, I reprogrammed the board with the BLYNK provisioning sketch, deleted the app preview, recreated it, and was able to complete the process. So it seems like you must have had a device connected to the project at least once, before creating the app preview.
I am not sure if this was by design.
Try connecting a device to the project, and recreating the app preview. Be sure to report back here and close the topic if that solves the issue.
@BlynkAndroidDev could you please check?
@Toro_Blanco seems like a bug. Right now we do some work to move devices out from the project.
Please describe your project and the type of the created app, this behavior could be possible in some edge cases.
I had only one button on project that switches D1 on and off.
As @Toro_Blanco said, it seem to work if I create app and start setup (Wifi ssid and password) before flashing the nodeMCU with provisioning sketch.