Errors or black screen after uploading sample programs in the HMI basic series

Jennie

If you encounter Errors or a black screen after uploading sample programs in the HMI basic series, possibly some steps below are not correct, pls follow these:

1. ESP32 should install version 2.0.14/2.0.15.

2. The configurations in the Arduino IDE-->Tools can only be set according to the following links .

CrowPanel DIS07050H 5":

https://www.elecrow.com/wiki/ESP32_Display_5.0-inch_HMI_Arduino_Tutorial.html#upload-the-code

CrowPanel DIS08070H 7'':

https://www.elecrow.com/wiki/ESP32_Display_7.0-inch_HMI_Arduino_Tutorial.html#upload-the-code

3. Use the library files we provide:

Download the libraries we modified.

Then click "File" -> "Preferences" -> "Setting" to check the sketchbook location. Place the downloaded libraries in the sketchbook location.
Example images: (may be different from the actual ones)

CrowPanel DIS07050H 5":

download libraries from:
https://www.elecrow.com/wiki/ESP32_Display_5.0-inch_HMI_Arduino_Tutorial.html#install-libraries

CrowPanel DIS08070H 7'':
download libraries from:
https://www.elecrow.com/wiki/ESP32_Display_7.0-inch_HMI_Arduino_Tutorial.html#install-libraries

4. Use the proper example codes.
   For some sample codes, we have different versions adapted to different hardware versions.
   So pls use the sample codes corresponding to the hardware version of your device.
   Example for hardware version on the device :
   

Example for the hardware version marks for which the code is applicable:

5. If there are still issues, please post screenshots of any error messages you encounter and send them to us for a look.