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Add support for LilyGo T-Echo Card (and tiny-ui!)#2517

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oltaco wants to merge 6 commits intomeshcore-dev:devfrom
oltaco:techo-card
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Add support for LilyGo T-Echo Card (and tiny-ui!)#2517
oltaco wants to merge 6 commits intomeshcore-dev:devfrom
oltaco:techo-card

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@oltaco
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@oltaco oltaco commented May 10, 2026

This PR adds support for the LilyGo T-Echo Card. It depends on #2516 otherwise the clock doesn't work due to the accelerometer/magnetometer being auto-detected as an RTC.

Added a new tiny-ui for the 72*40 screen, big thanks to @pelgraine for the U8g2 display wrapper 👍

I decided to try something different with the tiny ui and added a scrolling header with node name, battery voltage, buzzer, GPS and BLE status.
The main screen shows unread msg count, battery voltage and BLE pin when not connected, and there is no recent messages screen as there's not enough space anyway. It might be worth removing the recent adverts screen as well but I've left it in for now.

Triple click to toggle buzzer, double click on C button to toggle "torch".

Accelerometer/compass is currently disabled but could be enabled by a future update. The speaker could also potentially be enabled for use with alternate notification sounds, who knows :)

@oltaco
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oltaco commented May 10, 2026

Here's a little poorly shot video of the new tiny ui in action
https://streamable.com/0ia0m4

@pelgraine
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Loaded up my T-Echo Card with the firmware from this PR and can confirm the new tiny UI looks fantastic. @oltaco has done a brilliant job.

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