AB-02 - Display x Vext

Hi all : I received some samples of AB-02 board plus…Because I need more than one ADC.

So, if I use some routines for the display, like display_init, and some routines to update the display, after I turn off Vext, they remain in a voltage between 0 and 3.3 volts, like 2.2 volts with some noise.

If I comment the display_init, and not run the display update, this don´t happened.

By the schematics, I saw that to switch off the display, is by the Vext, but, I don´t know what is happen now.

Could be possible to post a routine to manage the display and to run before the low power mode, to save energy ?

Thank you for the support