MicroPython Forum (Archive)

I don't believe there is any requirement for network.WLAN to inform the router it's going away. You should see similar behaviour if you just unplugged the device.

Curt

I did something similar to this. You could do use the following pseudo code:
Curt

The traffic light application is interesting. I developed an example application for a module I am developing. It can be found here: https://github.com/ctimmer/poll-looper You only need: poll_looper.py and example/trafficlights.py (app) It was written for micropython but it runs on my raspberry pi (...

I asked this awhile back
viewtopic.php?f=15&t=11911&p=64789#p64789

Curt

I would verify that the server is actually running (listening). If it was only down briefly, the restart could have failed trying to open the port because the port was in a TIME_WAIT state.

Curt

Have you considered a network solution, even if to get your project going. I use UDP a lot. It's fast with fairly low overhead. One of the devices could be an access point eliminating the need for external hardware.

Curt

A better approach would probably be to let your browser do the plotting with an application like 'flot'. Flot used to require JQuery but it can be run stand alone. The micropython server would only have to return the data array (json).

Curt

Using your example: There are other ways to organize this data.
curt

I believe json serialization is looking for a dictionary or array. I've always used a dictionary.
Curt

Thanks @jimmo for your suggestions and explanations they were very helpful. I decided to go with "sys.implementation.name" as the most direct way to determine which python is running the application. Testing modules works but module implementation can change over time. Adding methods to modules appe...