[SOLVED] Photon light stucked on fixed cyan

Troubleshooting
1

Hi
I’m trying to solve an issue that I have for the last few weeks. But without any success!
Sometimes, my Photon is completely blocked and the light color is cyan fixed.
I found some blogs online that recommends to restart the board to avoid this kind of issue. So, I’m resetting the board every 6h:

// Reset the system after 6 hours
  if (millis() > 6 * 60 * 60 * 1000) {
    System.reset();
    Serial.println("!!!Resetting!!!");
  }

I don’t believe that it comes from my code, because the same code was working on Arduino Uno without any issue. Now, on Photon, it runs a maximum of 48hours, and then stops.

It maybe related to my Wifi network that stops working sometimes.

Any idea how I could solve my issue?

Thanks

2

What are you running on your photon?

3

To explain it simply, I have 4 sensors connected to my board: temperature (dht22), gas sensor (mq2), microphone and a photoresistor. I read the values every minute and I send a POST request to one of my servers.

4

I would say something in your user code might cause the issue. @bko would say maybe your DHCP lease on your router expires after 24 hours, causing the issue.

I have a DHT22 + oled photon sitting on my desk to tell me the ambient temperature and publishes every 1 minutes. It has been running for almost a month now without any hiccup

5

I think this is the biggest factor. Are you running in manual mode with full control over the WiFi and Cloud connections?

6

Maybe post your code.

another thing that comes to mind is reliance on String Class…

1 Like
7

@bko, yes, I’m running in manual mode. Do you have an idea how to solve this DHCP lease issue?

I can simplify my code, and just use my “ping” action to validate the behavior.

8

I use this: https://github.com/kennethlimcp/particle-examples/blob/master/wifi-auto-reconnect/wifi-auto-reconnect.ino

without having to reset the system…

9

Hi @bchevallereau

You will have to investigate your router’s settings to change the lease time or assign a “static dynamic” address to your device for that problem. I know in my case, my devices all disconnect from the cloud for approximately 1 minute every 24 hours, but they reconnect just fine.

I am glad that @kennethlimcp pointed you to his code, since that is the best example we have!

10

Thanks a lot for all these information! I’ll try to follow the same code as Wifi Auto Reconnect! And I’ll let you know in few days if it worked!

11

Hi
After 6 days, it’s still working. So, I guess that the issue is fixed.
Thanks a lot for your help!
Ben