售后常见问题

For Raspberry Pi 5, please use the connectors labeled for Pi 4B.

AI answer

Here is the link to our corresponding video tutorial:

 https://www.youtube.com/watch?v=rwEIxkGQeU8&list=PLwh4PlcPx2Gc9jDXEHgck9kkvPPmai_0t

1 When connecting your phone to the Type-C port on the right side of the CrowView Note, please use a full-featured cable, such as a USB 3.1 Gen 2 Type-C cable. you can use the cable included in the CrowView Note packaging.

2 Please connect your phone to the Type-C port on the right side of the CrowView Note and check if the phone starts charging. If it does, press F1 to select the Type-C signal source, then check if the CrowView Note displays the screen. If there is no display, it means this phone is not supported.

3 Additionally, the Google link you provided describes connecting your phone’s Type-C port to a monitor’s HDMI port, which is different from how CrowView Note connects with phones. CrowView Note requires a phone with a full-featured Type-C interface. If you want to use the method from the Google link, you will need a Type-C to HDMI adapter. One end of the adapter should connect to your phone’s Type-C port, and the other end should be connected to the CrowView Note’s mini HDMI port.

In general, this setup should work as expected. However, we kindly suggest reaching out to the manufacturer of your hdmi extender device to confirm whether it is functioning properly on their end.

1 Please provide the model of the module you are using.

2 You've mentioned that you're using RX-18 and TX-17 for UART1. Ensure that these pins are correctly configured in the code and match the physical connections.

  ESP32-S3 also uses different pinmux settings compared to other boards. Make sure the UART1 pins are correctly mapped for TX and RX in your code.

  Example code for setting UART1 in ESP32-S3:（Ensure that GPIO18 is connected to RX of the RS485 converter, and GPIO17 is connected to TX.）

HardwareSerial mySerial(1);

void setup() {

    Serial.begin(115200);  // Debugging Serial

    mySerial.begin(9600, SERIAL_8N1, 18, 17);  // RX = GPIO18, TX = GPIO17

    Serial.println("UART1 Initialized");

}

void loop() {

    if (mySerial.available()) {

        char incomingByte = mySerial.read();

        Serial.print("Received: ");

        Serial.println(incomingByte);

    }

}

Based on the information provided, it appears that the CrowPanel ESP32 3.7” E-paper HMI Display did not successfully enter bootloader mode.

Please try the following steps to manually force it into bootloader mode:

· 

Hold down the BOOT button

· 

While holding BOOT, briefly press the RESET button

· 

Release the RESET button first, then release the BOOT button

This should allow the device to enter bootloader mode properly.

1. 

May I ask if you have followed the instructions on replacing the necessary files as shown in the image below? If not, please try doing so and test again.

You can find the tutorial at the following link (also shown in the screenshot):

https://www.elecrow.com/pub/wiki/HMI_Display_course.html

2. 

Additionally, please make sure you are always using the libraries provided by us and avoid updating them, as doing so may cause compatibility issues.

3. 

For further reference during development, we also recommend checking the product’s documentation pages:

 https://www.elecrow.com/pub/wiki/CrowPanel_Advance_5.0-HMI_ESP32_AI_Display.html

 https://www.elecrow.com/pub/wiki/HMI_Display_course.html

You can connect a speaker or headphones to the Raspberry Pi through the headphone jack or USB port to play audio.

It doesnot support wireless projection