Added support for Lilygo T-Echo

[5of9]

Added support for Lilygo T-Echo

[hathach]

please use correct vid/pid for techo board. I will mark this as draft until it is updated

[hathach]

this vid/pid is for adafruit feather nrf52840

[5of9]

Thats what mine had, I cannot find a vendor ID for lilygo, if somebody knows it let us know

[dhalbert]

Lilygo does not seem to have their own USB VID. For their Espressif boards, they get USB PIDs from Espressif. For an RP2xxx, board, someone got a PID from pid.codes: pidcodes/pidcodes.github.com#827. You could request one there.

[serialrf433]

Thanks for this PR!

Your new fresh PR would solve the need of this old PR:
#254
And also solve the issue i reported back some months ago: #369

Waiting for the new release of this project containing your PR. Adding it to 0.10.1 or something like that would be great!

EDIT:
This Github search link shows up a example PR to add a id for a nrf52 board BloomBoot bootloader that got accepted december 2025: https://github.com/pidcodes/pidcodes.github.com/pulls?q=is%3Apr+is%3Aclosed+nrf52
I hope pointing to this accepted PR helps @5of9 to get and add support for the T-Echo.

[hathach]

PR still need updated vid/pid for lilygo before accepted.

[lyusupov]

LilyGO uses this copy of Adafruit nRF52 bootloader 0.6.1 with the T-Echo product for years
https://github.com/lyusupov/SoftRF/tree/master/software/firmware/binaries/nRF52840/Adafruit_nRF52_Bootloader

Source code of the LilyGO T-Echo bootloader is there:
https://github.com/lyusupov/Adafruit_nRF52_Bootloader/tree/master/src/boards/lilygo_techo