# Big LoRa32u4 boards topic

**URL:** <https://www.thethingsnetwork.org/forum/t/big-lora32u4-boards-topic/15273>\
**Category:** LMIC\
**Created:** [June 24, 2018, 6:44pm UTC](https://www.thethingsnetwork.org/forum/t/big-lora32u4-boards-topic/15273 "2018-06-24T18:44:57Z")\
**Posts on this page:** 1\
**Showing post:** 193

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**Author:** ![bluejedi](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/bluejedi/32/44639_2.png) [@bluejedi](https://www.thethingsnetwork.org/forum/u/bluejedi)\
**Post date:** [December 15, 2019, 11:13am UTC](https://www.thethingsnetwork.org/forum/t/big-lora32u4-boards-topic/15273/193 "2019-12-15T11:13:17Z")

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Hi Marco,

Thanks for your lmic\_slim feedback.

> [@marcovanschagen](#):
>
> Would it be worth to you to get the lmic\_slim to a better level

In short: My feeling is not really because:

> [@bluejedi](#):
>
> - Lacks any documentation .
> - Lacks any references.
> - It is unclear what is and what is not supported by that library.
> - It may very well not be LoRaWAN compliant.

further:

- I’m almost certain that lmic\_slim is not LoRaWAN compliant because there is no indication of that whatsoever. It is not even clear what is and what is not supported by the library.
- The library is provided as a ZIP file and you ask for feedback via email.  
That is not how open source development works.
- What should people give feedback about when nothing is even documented?

> [@marcovanschagen](#):
>
> or did better alternatives become available?

That depends on your definition of ‘better’.

While 8-bit AVR MCU’s are still used there is a tendency to shift to 32-bit ARM MCU’s (and things like ESP32) that have (much) more available memory resources, are more powerful and are better able to handle a full LoRaWAN stack implementation.  
Multiple LMIC [libraries](https://www.thethingsnetwork.org/forum/t/overview-of-lorawan-libraries-lmic-loramac-node-and-their-variations-howto/24692) are available for the Arduino framework already. They will not be as small as lmic\_slim but are LoRaWAN compliant, are open source and (some) are well-maintained.  
In answer to “would it be worth to you to get the lmic\_slim to a better level”, I guess not, unless you want to develop for a niche, have much spare time and are willing to maintain it for longer time.

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