# TTN-Mapper and Lilygo-T-Beam

**URL:** <https://www.thethingsnetwork.org/forum/t/ttn-mapper-and-lilygo-t-beam/47037>\
**Category:** TTN Network and Services\
**Tags:** gateways\
**Created:** [April 24, 2021, 8:38am UTC](https://www.thethingsnetwork.org/forum/t/ttn-mapper-and-lilygo-t-beam/47037 "2021-04-24T08:38:11Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![Jeff-UK](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/jeff-uk/32/35697_2.png) [@Jeff-UK](https://www.thethingsnetwork.org/forum/u/Jeff-UK)\
**Post date:** [April 24, 2021, 9:12am UTC](https://www.thethingsnetwork.org/forum/t/ttn-mapper-and-lilygo-t-beam/47037/2 "2021-04-24T09:12:51Z")

</div>

> [@Julian-Thiele](#):
>
> I recently switched my gateway to V3

See

> [@TTN V2 to V3 migration](https://www.thethingsnetwork.org/forum/t/ttn-v2-to-v3-migration-migrate-your-gateways-last/43445):
>
> Packet Broker currently routes traffic from gateways connected to The Things Network V2 to V3. That is, gateway coverage of V2 is available in V3. But not the other way around : gateways already connected directly to V3 will not be available for applications in V2. As a friendly request, both as a user of TTN and as the maintainer of TTN Mapper, please keep your gateways on TTNv2, until as late as possible. People in your city that have not yet migrated their application from v2 to v3 will…

---

_[View the full topic](https://www.thethingsnetwork.org/forum/t/ttn-mapper-and-lilygo-t-beam/47037)._