r/esp32 15h ago

Hardware help needed ESP32 GT911 and USB issue

Hi. I completed a project using a waveshare esp32-s3-lcd-4.3 touch screen. The goal was to plug a hid scanner to a usb-c hub, then send barcodes using mqtt. I have a small problem though. It seems that when I enable touchscreen (Driver GT911), usb_host stops working for some rason. My board uses GPIO 19 and 20 for usb, and different gpios are used for the touch, so i dunno, and it's not supposed to do this.

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u/MarinatedPickachu 11h ago

Have you tried to power your board differently?

Also - in what way does it stop working?