📕Sept 2024

The latest version of the 3.5-inch screen is version 2.2. The touch drive IC is different.

Version 2.0

TFT_MISO is pin 12;

Touch_CS is pin 33.

Version 2.2:

TFT_MISO is pin 33;

Touch_CS is pin 12.

Therefore, the corresponding pin numbers need to be modified in the code, and the TFT_eSPI library also needs to be modified accordingly.

📕June 2024

The latest version of the 5-inch and 7-inch screens is version 3.0, which adds the chip PCA9557 to increase timing control. Therefore, you need to add the PCA9557 library to make the touch work properly.

Video: https://www.youtube.com/watch?v=E3NAmstft_8&list=PLwh4PlcPx2GcKJ17Z_xcAxQoh-Tmms_X1&index=3

Code: https://github.com/Elecrow-RD/CrowPanel-ESP32-Display-Course-File/tree/main/CrowPanel_ESP32_Tutorial/Code

①Add the PCA9557 library:

#include <PCA9557.h>

②Define the PCA9557 object:

PCA9557 Out;

③Control with RESET and EN to meet the timing requirements:

Wire.begin(19, 20);
Out.reset();
Out.setMode(IO_OUTPUT); //Set to output mode
Out.setState(IO0, IO_LOW);
Out.setState(IO1, IO_LOW);
delay(20);
Out.setState(IO0, IO_HIGH);
delay(100);
Out.setMode(IO1, IO_INPUT);

📕March 2024

Because "SmartView" has been registered by others, we now officially name the HMI series CrowPanel

📙February 2024

1.Product Name change to SmartView Display

2.Hardware changes:

• Silkscreen: 1. From "Wizee ESP32" to "ESP32 Display-xinch"; 2.From "WZxxx" to "DISxxx"
• All sizes of screens have added battery charging circuits. Connect the battery to the BAT interface and you can charge the battery through the USB-C interface.
• There is no need to manually press the boot button to enter the burning mode for all screen sizes. After you click download in the compiler, the board will automatically enter the burn-in mode.
• After the program download is completed, the program can be automatically run.
• For 3.5-inch display, the chip is changed from ESP32-WROOM-32-N4 to ESP32-WROVER-B, PSRAM is changes to 8MB
• For 5.0, 7.0-inch display, there's I2C port added

/Arduino/CrowPanel_ESP32_LVGL_Demo/CrowPanel_ESP32_LVGL_Demo.ino: In function 'void setup()':
/CrowPanel_ESP32_LVGL_Demo.ino:95:7: error: 'class PCA9557' has no member named 'reset'
Out.reset();
^~~~~
CrowPanel_ESP32_LVGL_Demo.ino:96:7: error: 'class PCA9557' has no member named 'setMode'; did you mean 'pinMode'?
Out.setMode(IO_OUTPUT);

• additional compile errors pointing to PCA9557 -

The Arduino IDE is setup with the following.
Using board 'esp32s3' esp32/2.0.15
Using core 'esp32' esp32/2.0.15
LVGL 8.3.11
TFT_eSPI 2.5.0
Lovyangfx 1.1.8
PCA9557-arduino 1.0.0
SPI 2.0.0
Wire 2.0.0

Using CrowPanel 7" display DIS08070H V3.0

Any help you could provide would be greatly appreciated.

I’m evaluating two CrowPanel Advance models for a handheld, battery-powered tool we are looking to develop for use in the UK:
CrowPanel Advance 4.3″ HMI (ESP32-S3, 800×480)
CrowPanel Advance 3.5″ HMI (ESP32-S3, 480×320)

Could you please confirm whether both of these units are covered by your EU CE / RED compliance and share the relevant documents? Specifically:

1) Declarations & reports
A copy of the EU Declaration of Conformity naming the exact model/SKU (3.5″ and 4.3″)
List of applied standards (ideally these or equivalents):
EN 300 328 (2.4 GHz radio)
EN 301 489-1 & EN 301 489-17 (EMC for radio equipment)
EN 62368-1 (safety)
EN 62311/EN 50663 (RF exposure/assessment)
Any test reports (EMC/radio/safety) you can share or reference

2) Marking & labelling
Confirmation the products are CE-marked on the device and/or packaging, and shipped with the required EU/UK user information (manufacturer name/address, frequency band, max power, etc.)
If available, UKCA info (understood that CE is recognised in GB)

3) Radio / antenna
Is there a U.FL / external antenna option for either model, or a part number variant with an external antenna connector?
Stated max conducted power / EIRP in 2.4 GHz band

4) Battery & charging
Rated charge current (default ISET), recommended adapter spec, and any guidance on supported cell capacity (e.g., 5 000 mAh ok; charge time considerations)
Any protective features (OVP/OTP/short-circuit) and notes we should follow for enclosure thermal design

5) ESP-NOW
Confirmation that the plug-in wireless module bay is not required and we only need the on-board ESP32-S3 for Wi-Fi/BLE/ESP-NOW

Usage context (for your reference):
We’ll integrate the CrowPanel into a field tool (Building commissioning). The final product will be enclosed in a metal housing (design considerations still required around on board ESP32-S3 antennae if no external connection option is available) with a battery pack; we’ll complete the end-product conformity assessment (EMC, safety, labelling) and maintain a technical file, but we’d like to include your DoC and test references for the display/HMI.

If you can attach the PDF DoC(s) for the 3.5″ and 4.3″ Advance models (or provide download links), that would be perfect.

Thank you