ArduinoJson 7 assumptions about memory in modern processors about arduinojson HOT 3 CLOSED

Hi @judge2005,

I read the ArduinoJson 7 introduction which was telling me how much memory 32 bit processors have

I'm assuming you're talking about this article, where I say "32-bit microcontrollers have much more memory".
In this sentence, as in the whole "code size" section, I was talking about the Flash memory, not the RAM.
Indeed, the new UNO has eight times more Flash than the previous generation.

I was talking about the Flash memory, but even if I were talking about RAM, it would still be true: the new UNO has sixteen times more RAM than the previous generation.
But I get your point: the board has more RAM, but a huge part is already consumed or reserved.

Fortunately, ArduinoJson 7 doesn't consume more RAM than ArduinoJson 6, as you can see with the ArduinoJson Assistant.
Moreover, ArduinoJson 7 doesn't need a contiguous memory block, so it can run when the heap is fragmented.

Please give it a try, and let me know if you have any problems.

Best regards,
Benoit

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Thanks. I tried AduinoJson 7 and it is a definite improvement. I didn't notice any increase in firmware size and it definitely handles low memory (well, actually fragmented memory) better. I forced my application to do all the memory-hungry things and it never went wrong. At the time that it creates the 6k JSON document (or what previously required 6k) it worked fine with this Free heap: 12368, Max block size=3060, so a definite improvement.

Many thanks.

from arduinojson.

I'm very glad to read that. Thanks!
I think I can safely close this issue then.
Don't hesitate to cast a star to support the project 😉

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