Berry - convert string to a list

[xostia]

Hi,

Anybody knows how to convert a string to a list in berry?. I am using this code (bottom), but it should be a easier way (list to string is simply "tostring()"). I also tried to convert with list (), same style than number() ... but it does not work (even using the same string generated by tostring()).

def stringToList(list_str)
import string
var result = []
var temp = string.split(string.split(string.split(list_str, -1)[0], '[')[1], ',')
for i:temp
result.push(number(i))
end
return result
end

[Edit]

The conversions that I get with list() simply take the list as one single string element

print (stringToList(readingsMap[IR_RAW_LABEL]["value"]))

I get: [65535, 65535, 65535, 65535, 65535, 65535]

print (list(readingsMap[IR_RAW_LABEL]["value"]))

I get ['[65535, 65535, 65535, 65535, 65535, 65535]']

Thank you

[sfromis]

Well, the conversion depends on exactly how the string can be, but your code looks like it can be JSON-like. Hence:

var list_str='[1,2,3,4]'
import json
var result = json.load(list_str)

To create a suitable string from more than a simple list of numbers, I can recommend using json.dump instead of tostring().

You added more stuff while I was typing, but how readingsMap was created could also be a factor in how to process it.

[sfromis]

The "old data" would not have to be from the previous message, more like from one second ago.

By "fake" I was not talking about the content of your calculation, but about the action of doing the separate publish to a topic managed by Tasmota.

[xostia]

It is true... in a regular sensor, not this case.

The light sensor needs to work in max gain configuration and long time exposition (600ms), then I configured the code of TSL2591 to only perform the readings in the last 10 seconds of the teleperiod (and teleperiod 60 seconds).

If I inject the results of the calculation, they will appear "one minute later" because they are based on the sensor data "one minute before" (in Berry I check the updates of MQTT with callback... just after the MQTT message is sent).

This is not part of the discussion, but I am considering to use this code for the TSL2591 (and not the Arduino library):

https://github.com/gmarti/AsyncTSL2591

The integration time will not have impact in Tasmota because is totally async.

What I am doing is a photometer for night light measurement (light contamination). We made a complete design of the device with cheap components. If you have interest, I can tell you more.

Thank you

[sfromis]

Well, when you are deliberately breaking the driver to not be able to work as usual, it is up to you to make it work.

You could do something like starting the sampling 11 seconds before TelePeriod, and then have Berry code to pick up the value 1 second before TelePeriod, do your additional calculations, and then have your json_append callback supply the extra object for the sensors payload.

[xostia]

Yes... that is what I am thinking... I was checking and the measurements start second 50/51, then it should be easy to calculate the moment to launch json_append.

Thank you a lot.