# New TTN Mapper based on new RadioLib dissection

**URL:** <https://www.thethingsnetwork.org/forum/t/new-ttn-mapper-based-on-new-radiolib-dissection/65721>\
**Category:** Hardware\
**Created:** [November 25, 2023, 8:09pm UTC](https://www.thethingsnetwork.org/forum/t/new-ttn-mapper-based-on-new-radiolib-dissection/65721 "2023-11-25T20:09:36Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Piet\_Pillay](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/piet_pillay/32/35697_2.png) [@Piet\_Pillay](https://www.thethingsnetwork.org/forum/u/Piet_Pillay)\
**Post date:** [November 25, 2023, 8:09pm UTC](https://www.thethingsnetwork.org/forum/t/new-ttn-mapper-based-on-new-radiolib-dissection/65721/1 "2023-11-25T20:09:36Z")

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nice

are you varying your sf between tx

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**Author:** ![descartes](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/descartes/32/47220_2.png) [@descartes](https://www.thethingsnetwork.org/forum/u/descartes)\
**Post date:** [November 25, 2023, 9:35pm UTC](https://www.thethingsnetwork.org/forum/t/new-ttn-mapper-based-on-new-radiolib-dissection/65721/2 "2023-11-25T21:35:24Z")

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TTN Mapper recommends SF7 is all the mapping data is consistent - and maximises the number of packets that can be transmitted.

@stevencellist, can you put the battery beside the electronics so it can be wider & thinner for side pockets on backpacks etc?

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**Author:** ![stevencellist](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/stevencellist/32/46434_2.png) [@stevencellist](https://www.thethingsnetwork.org/forum/u/stevencellist)\
**Post date:** [November 25, 2023, 9:36pm UTC](https://www.thethingsnetwork.org/forum/t/new-ttn-mapper-based-on-new-radiolib-dissection/65721/3 "2023-11-25T21:36:51Z")

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The link above was mapped using fixed SF9, I’m planning to add a configuration that allows cycling through a set of datarates. I find a fixed SF easier for comparing results… no need for additional tools 🙂

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**Author:** ![stevencellist](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/stevencellist/32/46434_2.png) [@stevencellist](https://www.thethingsnetwork.org/forum/u/stevencellist)\
**Post date:** [November 25, 2023, 9:40pm UTC](https://www.thethingsnetwork.org/forum/t/new-ttn-mapper-based-on-new-radiolib-dissection/65721/4 "2023-11-25T21:40:47Z")

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> [@descartes](#):
>
> can you put the battery beside the electronics so it can be wider & thinner for side pockets on backpacks etc?

Great suggestion! Quite sure I can, but a 21700 battery is at least 21mm thick + 1.5mm on top and bottom… although for smaller pockets an 18650 could be OK as well for a bit less capacity. Without the clip-on attachment, the current design is 33mm high; with a square-ish layout for an 18650 I should be able to get away with 21mm I expect.

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**Author:** ![Piet\_Pillay](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/piet_pillay/32/35697_2.png) [@Piet\_Pillay](https://www.thethingsnetwork.org/forum/u/Piet_Pillay)\
**Post date:** [November 26, 2023, 3:04pm UTC](https://www.thethingsnetwork.org/forum/t/new-ttn-mapper-based-on-new-radiolib-dissection/65721/5 "2023-11-26T15:04:27Z")

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> [@The WORKBENCH part 5](https://www.thethingsnetwork.org/forum/t/the-workbench-part-5/31726/110):
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> Inspired by the Adeunis FTD

so if us not the same as a adeunis, it is a tracker node transmitting at SF10 every 30sec the adeunis cycles through all the sf  
 ![image](https://www.thethingsnetwork.org/forum/uploads/default/original/3X/8/6/869f943765998de76cba94154e7a4e626580cd8a.png)  
 ![image](https://www.thethingsnetwork.org/forum/uploads/default/original/3X/1/f/1f5bd21139f9c302edc3ef72ac90bb72e62e6c6b.png)  
 ![image](https://www.thethingsnetwork.org/forum/uploads/default/original/3X/e/6/e66f4f076d85c8a72038db7a4df9744f7b314cb7.png)  
 ![image](https://www.thethingsnetwork.org/forum/uploads/default/original/3X/7/0/70cc1063593a6d65b197bcffe3a978b178f1ee85.png)  
 ![image](https://www.thethingsnetwork.org/forum/uploads/default/original/3X/c/e/ce62b642a7e7bfa7a9c741dcd681c2b9a7749937.png)

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<div class="post-metadata">

**Author:** ![descartes](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/descartes/32/47220_2.png) [@descartes](https://www.thethingsnetwork.org/forum/u/descartes)\
**Post date:** [November 26, 2023, 3:34pm UTC](https://www.thethingsnetwork.org/forum/t/new-ttn-mapper-based-on-new-radiolib-dissection/65721/6 "2023-11-26T15:34:06Z")

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The key phrase here is “inspired by”, so not sure what you are trying to say @Piet_Pillay. And even then, it’s on the workbench so likely to have elements of work in progress about it.

Keep up the good work @stevencellist, as we say in the UK “_Illegitimi non carborundum_”

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**Author:** ![stevencellist](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/stevencellist/32/46434_2.png) [@stevencellist](https://www.thethingsnetwork.org/forum/u/stevencellist)\
**Post date:** [November 26, 2023, 5:43pm UTC](https://www.thethingsnetwork.org/forum/t/new-ttn-mapper-based-on-new-radiolib-dissection/65721/7 "2023-11-26T17:43:05Z")

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I must’ve miscalculated the DR to SF conversion, thought I’d set it to SF9 🙂  
But in essence, a coverage tester isn’t much different to a tracker… and as mentioned and said in the docs, a single SF is preferred actually!  
Although I plan to add a configuration option to loop through a set of SFs

Will add the mapping points to an experiment while building the next few days to prevent some more mistakes
