@ckuehnel said in TTGO T-Higrow:
Hallo! Thanks for the detailed information in your review.
Did you notice any whine when running off battery?
I have a similar devkit (diy more) but there is a high-pitched whine from the esp32 module, even in deep sleep mode.
And the battery drains rather quickly (3 days or so, wake every 30m).
Is the Lilygo one silent?