Waveshare ESP32-S3-Touch-LCD-4 Not Booting with 7~36V DC Input

madinex
Posts: 1
Joined: Sat Mar 15, 2025 6:39 pm

Waveshare ESP32-S3-Touch-LCD-4 Not Booting with 7~36V DC Input

Postby madinex » Sat Mar 15, 2025 7:02 pm

Hi everyone,

I’m using the ESP32-S3-Touch-LCD-4 board and I’ve encountered an issue when trying to power it via 7~36V DC input.
• When I power it via USB Type-C, it turns on, and pressing the BAT_PWR button starts the demo.
• But when using 7~36V DC, the power LED and display turn on, but the ESP32 doesn’t boot.

Has anyone faced this issue before? Is there a way to configure it to boot automatically with DC input, or do I need to modify something (e.g., clearing the demo program, DC changes more than 9 or 12)?

Any help would be appreciated!

Thanks!
Attachments
IMG_5069.jpeg
IMG_5069.jpeg (5.75 MiB) Viewed 9225 times
IMG_5068.jpeg
IMG_5068.jpeg (5.82 MiB) Viewed 9225 times
IMG_5067.jpeg
IMG_5067.jpeg (6.62 MiB) Viewed 9225 times

username
Posts: 594
Joined: Thu May 03, 2018 1:18 pm

Re: Waveshare ESP32-S3-Touch-LCD-4 Not Booting with 7~36V DC Input

Postby username » Mon Mar 17, 2025 10:49 pm

I believe that symptom is explained on their wiki for it.
I bought both Rev 1 and Rev2 (the rev number is under the LCD cable. Both have issues. Wound up chucking them both.

Who is online

Users browsing this forum: No registered users and 3 guests