Edgent Provisioning Data

Blynk 2.0
1

Hello Everyone,

I’m working on a project involving ESP32-CAMS uploading pictures to an FTP server, and the Image Gallery Widget showing those images in the app.

Once I have this properly working, I’m hoping to sell these devices to people and have them use them in their own use cases (its a chicken coop automation system).

When I provision a device using Blynk Edgent, it will give it a name that is something like BlynkDeviceName-XXXX where the x’s are a random set of numbers/letters.

Where is Blynk getting those characters, are they stored somewhere and can I use them?

I’m trying to figure out a way where I don’t need to alter the sketch for different image locations for each device but rather have the device create its own set of image locations in the FTP server based on a set of identifiable characteristics specific to that particular device (like its device name for example)

I’m open to other suggestions as well.

Thanks!

2

I think it’s a variable called chipId which is generated in ConfigMode.h using the ESP.getEfuseMac() command. This means that it’s specific to the board.

Pete.

1 Like
3

Thanks Pete, I’ll play around with that and see if I can work it in to my sketch.

Much appreciated!

I’ll update with results within a couple days.

4

Please note this is not globally unique. If you need unique ids, there are other (mostly hardware-based) ways to obtain it.

5

I’m going to do some playing with it this weekend, but when the user provisions the device, is chipID updated to the device name chosed by the user? If so, I should be fine with non-globally unique names.