No Cores Found - Can't connect to spark core

Troubleshooting
1

I recently bought a Spark Core, but I have not been able to connect to it in any way. It is a chip antenna core. The power source for the core is definitely strong enough, and my router is pretty powerful. I am using a 2.4GHz b/g/n network on channel 8 with WPA2-PSK [AES] encryption. I have tried using the android app multiple times. The core continues to blink blue and, after a while, the app says “no cores found.”

I have tried connecting with my computer, but that raises another problem. At the step where I type “npm install -g particle-cli” in the command line, I get multiple errors. I have tried using both the regular command line and the node.js command line installed earlier in the tutorial. Both failed at “node-pre-gyp install --fallback-to-build” and mentioned problems with the serial package.

I don’t necessarily need to use one specific method, so if I could get at least one of them working that would be great. Thanks!

2

Place the core in Listening mode, use a serial terminal program and hit w then send in wifi credentials accordingly.

3

Great, that seemed to work. Now how do I connect my mobile app to it?

4

The mobile app might not work 100% depending on the network environment you have. You can attempt to place the Spark core in Listening mode and see if it works.

5

That didn’t work. Is there any other way for me to connect to it over the internet? Or even with a usb cord?

6

Did the method i mentioned above not work?

7

I can’t connect to it using the mobile app. If you mean the terminal, I was able to send the credentials but I don’t know how to do anything else.

8

So what should I do? I got a spark so I could put it in a hard-to-reach place and not have to worry about updating it with cables… I don’t care if I have to use the web IDE or the mobile app.

9

@hex4d617474,

  • Did you managed to get the Core connected and listed in your account?
10

The led is indicating a good network connection, but I can’t connect to it

11

What do you mean when you say the led is indicating a good network connection? What is the exact colour?

12

@kennethlimcp Where is the documentation for communicating with the core in listening mode? I stumbled upon this post the other day when my core was locked up and it was really helpful. Thanks :+1: I’m curious what other commands are available in this mode.

13

I don’t remember it being documented anywhere but for now you can refer here: https://github.com/spark/firmware/blob/dfa56424014eaf28a43ebeadbd11a80f646de7ae/system/src/system_setup.cpp#L78

Opened an issue here to get it introduced in docs: https://github.com/spark/docs/issues/179

Thanks!

14

Sorry about the quality, I had to resize it so it would upload

It is “breathing” this color

15

Is there anything else I can try? Or am I stuck like this?

16

If it is breathing cyan means it’s connected to the :cloud:.

Are you able to flash new user firmware?