** Hardware**

1.Can the LR1302 Gateway Module be used with other Hats?
2.Can the LR1302 Gateway Module be used for AU915?
3.Can the LR1302 Gateway Module + HAT use with other Microcontroller?

** Software**

1.Can I use the LR1302 Gateway Module+HAT to transmit video?
2.How should solve the errors when using the LR1302 Gateway Module+HAT?

I have tried flashing it over HA using the ZigStar TI CC2652P7 FW Flasher add-on both via network and USB, as well as reflashing it over USB via my computer using the ZigStar Flasher on Windows. In all instances I am running into the same ERROR: Timeout waiting for ACK/NACK after 'Synch (0x55 0x55)' problem.

As it is, the device is completely unusable and I have to temporarily go back to my previous coordinator. Would you be able to assist with an exchange?

Thank you.

For 5-inch esp32 screen:

1/2/2024 Updated:

The latest demo code for 5-inch screen also use LovyanGFX library. If you change the library from Arduino_GFX to LovyanGFX, the "->" need to be replaced into "."

#include <LovyanGFX.hpp>
#include <lgfx/v1/platforms/esp32s3/Panel_RGB.hpp>
#include <lgfx/v1/platforms/esp32s3/Bus_RGB.hpp>
class LGFX : public lgfx::LGFX_Device
{
public:


  lgfx::Bus_RGB     _bus_instance;
  lgfx::Panel_RGB   _panel_instance;


  LGFX(void)
  {



    {
      auto cfg = _bus_instance.config();
      cfg.panel = &_panel_instance;
      
      cfg.pin_d0  = GPIO_NUM_8; // B0
      cfg.pin_d1  = GPIO_NUM_3;  // B1
      cfg.pin_d2  = GPIO_NUM_46;  // B2
      cfg.pin_d3  = GPIO_NUM_9;  // B3
      cfg.pin_d4  = GPIO_NUM_1;  // B4
      
      cfg.pin_d5  = GPIO_NUM_5;  // G0
      cfg.pin_d6  = GPIO_NUM_6; // G1
      cfg.pin_d7  = GPIO_NUM_7;  // G2
      cfg.pin_d8  = GPIO_NUM_15;  // G3
      cfg.pin_d9  = GPIO_NUM_16; // G4
      cfg.pin_d10 = GPIO_NUM_4;  // G5
      
      cfg.pin_d11 = GPIO_NUM_45; // R0
      cfg.pin_d12 = GPIO_NUM_48; // R1
      cfg.pin_d13 = GPIO_NUM_47; // R2
      cfg.pin_d14 = GPIO_NUM_21; // R3
      cfg.pin_d15 = GPIO_NUM_14; // R4


      cfg.pin_henable = GPIO_NUM_40;
      cfg.pin_vsync   = GPIO_NUM_41;
      cfg.pin_hsync   = GPIO_NUM_39;
      cfg.pin_pclk    = GPIO_NUM_0;
      cfg.freq_write  = 15000000;


      cfg.hsync_polarity    = 0;
      cfg.hsync_front_porch = 8;
      cfg.hsync_pulse_width = 4;
      cfg.hsync_back_porch  = 43;
      
      cfg.vsync_polarity    = 0;
      cfg.vsync_front_porch = 8;
      cfg.vsync_pulse_width = 4;
      cfg.vsync_back_porch  = 12;


      cfg.pclk_active_neg   = 1;
      cfg.de_idle_high      = 0;
      cfg.pclk_idle_high    = 0;


      _bus_instance.config(cfg);
    }
            {
      auto cfg = _panel_instance.config();
      cfg.memory_width  = 800;
      cfg.memory_height = 480;
      cfg.panel_width  = 800;
      cfg.panel_height = 480;
      cfg.offset_x = 0;
      cfg.offset_y = 0;
      _panel_instance.config(cfg);
    }
    _panel_instance.setBus(&_bus_instance);
    setPanel(&_panel_instance);


  }
};



LGFX lcd;
/*******************************************************************************
   End of Arduino_GFX setting
 ******************************************************************************/

Original message:

Modify the following code

into

Arduino_RPi_DPI_RGBPanel *lcd = new Arduino_RPi_DPI_RGBPanel(
  bus,
  800 /* width */, 0 /* hsync_polarity */, 210 /* hsync_front_porch */, 4 /* hsync_pulse_width */, 43 /* hsync_back_porch */,
  480 /* height */, 0 /* vsync_polarity */, 22 /* vsync_front_porch */, 4 /* vsync_pulse_width */, 12 /* vsync_back_porch */,
  1 /* pclk_active_neg */, 16000000 /* prefer_speed */, true /* auto_flush */);
#endif /* !defined(DISPLAY_DEV_KIT) */

For 7-inch esp32 screen:

Step 1: Download the LovyanGFX library

Step 2: Modify the code of HMI-7.0

Add the following code:

#include <LovyanGFX.hpp>
#include <lgfx/v1/platforms/esp32s3/Panel_RGB.hpp>
#include <lgfx/v1/platforms/esp32s3/Bus_RGB.hpp>


// Define a class named LGFX, inheriting from the LGFX_Device class.
class LGFX : public lgfx::LGFX_Device {
public:
  // Instances for the RGB bus and panel.
  lgfx::Bus_RGB     _bus_instance;
  lgfx::Panel_RGB   _panel_instance;


  // Constructor for the LGFX class.
  LGFX(void) {
    // Configure the RGB bus.
    {
      auto cfg = _bus_instance.config();
      cfg.panel = &_panel_instance;


      // Configure data pins.
      cfg.pin_d0  = GPIO_NUM_15; // B0
      cfg.pin_d1  = GPIO_NUM_7;  // B1
      cfg.pin_d2  = GPIO_NUM_6;  // B2
      cfg.pin_d3  = GPIO_NUM_5;  // B3
      cfg.pin_d4  = GPIO_NUM_4;  // B4
      
      cfg.pin_d5  = GPIO_NUM_9;  // G0
      cfg.pin_d6  = GPIO_NUM_46; // G1
      cfg.pin_d7  = GPIO_NUM_3;  // G2
      cfg.pin_d8  = GPIO_NUM_8;  // G3
      cfg.pin_d9  = GPIO_NUM_16; // G4
      cfg.pin_d10 = GPIO_NUM_1;  // G5
      
      cfg.pin_d11 = GPIO_NUM_14; // R0
      cfg.pin_d12 = GPIO_NUM_21; // R1
      cfg.pin_d13 = GPIO_NUM_47; // R2
      cfg.pin_d14 = GPIO_NUM_48; // R3
      cfg.pin_d15 = GPIO_NUM_45; // R4


      // Configure sync and clock pins.
      cfg.pin_henable = GPIO_NUM_41;
      cfg.pin_vsync   = GPIO_NUM_40;
      cfg.pin_hsync   = GPIO_NUM_39;
      cfg.pin_pclk    = GPIO_NUM_0;
      cfg.freq_write  = 15000000;


      // Configure timing parameters for horizontal and vertical sync.
      cfg.hsync_polarity    = 0;
      cfg.hsync_front_porch = 40;
      cfg.hsync_pulse_width = 48;
      cfg.hsync_back_porch  = 40;
      
      cfg.vsync_polarity    = 0;
      cfg.vsync_front_porch = 1;
      cfg.vsync_pulse_width = 31;
      cfg.vsync_back_porch  = 13;


      // Configure polarity for clock and data transmission.
      cfg.pclk_active_neg   = 1;
      cfg.de_idle_high      = 0;
      cfg.pclk_idle_high    = 0;


      // Apply configuration to the RGB bus instance.
      _bus_instance.config(cfg);
    }


    // Configure the panel.
    {
      auto cfg = _panel_instance.config();
      cfg.memory_width  = 800;
      cfg.memory_height = 480;
      cfg.panel_width   = 800;
      cfg.panel_height  = 480;
      cfg.offset_x      = 0;
      cfg.offset_y      = 0;


      // Apply configuration to the panel instance.
      _panel_instance.config(cfg);
    }


    // Set the RGB bus and panel instances.
    _panel_instance.setBus(&_bus_instance);
    setPanel(&_panel_instance);
  }
};
LGFX lcd;

and delete the following code:

#include <Arduino_GFX_Library.h>
#define TFT_BL 2
//#define GFX_BL DF_GFX_BL // default backlight pin, you may replace DF_GFX_BL to actual backlight pin


/* More dev device declaration: https://github.com/moononournation/Arduino_GFX/wiki/Dev-Device-Declaration */
#if defined(DISPLAY_DEV_KIT)
Arduino_GFX *lcd = create_default_Arduino_GFX();
#else /* !defined(DISPLAY_DEV_KIT) */


//Arduino_ESP32RGBPanel *bus = new Arduino_ESP32RGBPanel(
//    GFX_NOT_DEFINED /* CS */, GFX_NOT_DEFINED /* SCK */, GFX_NOT_DEFINED /* SDA */,
//    40 /* DE */, 41 /* VSYNC */, 39 /* HSYNC */, 42 /* PCLK */,
//    45 /* R0 */, 48 /* R1 */, 47 /* R2 */, 21 /* R3 */, 14 /* R4 */,
//    5 /* G0 */, 6 /* G1 */, 7 /* G2 */, 15 /* G3 */, 16 /* G4 */, 4/* G5 */,
//    8 /* B0 */, 3 /* B1 */, 46 /* B2 */, 9 /* B3 */, 1 /* B4 */
//);
Arduino_ESP32RGBPanel *bus = new Arduino_ESP32RGBPanel(
  GFX_NOT_DEFINED /* CS */, GFX_NOT_DEFINED /* SCK */, GFX_NOT_DEFINED /* SDA */,
  41 /* DE */, 40 /* VSYNC */, 39 /* HSYNC */, 0 /* PCLK */,
  14 /* R0 */, 21 /* R1 */, 47 /* R2 */, 48 /* R3 */, 45 /* R4 */,
  9 /* G0 */, 46 /* G1 */, 3 /* G2 */, 8 /* G3 */, 16 /* G4 */, 1 /* G5 */,
  15 /* B0 */, 7 /* B1 */, 6 /* B2 */, 5 /* B3 */, 4 /* B4 */
);


// option 1:
// 7寸 50PIN 800*480
Arduino_RPi_DPI_RGBPanel *lcd = new Arduino_RPi_DPI_RGBPanel(
  bus,
  //  800 /* width */, 0 /* hsync_polarity */, 8/* hsync_front_porch */, 2 /* hsync_pulse_width */, 43/* hsync_back_porch */,
  //  480 /* height */, 0 /* vsync_polarity */, 8 /* vsync_front_porch */, 2/* vsync_pulse_width */, 12 /* vsync_back_porch */,
  //  1 /* pclk_active_neg */, 16000000 /* prefer_speed */, true /* auto_flush */);


  //  800 /* width */, 0 /* hsync_polarity */, 40 /* hsync_front_porch */, 48 /* hsync_pulse_width */, 40 /* hsync_back_porch */,
  //  480 /* height */, 0 /* vsync_polarity */, 13 /* vsync_front_porch */, 1 /* vsync_pulse_width */, 31 /* vsync_back_porch */,
  //  1 /* pclk_active_neg */, 16000000 /* prefer_speed */, true /* auto_flush */);
//  800 /* width */, 0 /* hsync_polarity */, 210 /* hsync_front_porch */, 30 /* hsync_pulse_width */, 16 /* hsync_back_porch */,
//  480 /* height */, 0 /* vsync_polarity */, 22 /* vsync_front_porch */, 13 /* vsync_pulse_width */, 10 /* vsync_back_porch */,
//  0 /* pclk_active_neg */, 16000000 /* prefer_speed */, true /* auto_flush */);
  800 /* width */, 0 /* hsync_polarity */, 210 /* hsync_front_porch */, 1 /* hsync_pulse_width */, 46 /* hsync_back_porch */,
  480 /* height */, 0 /* vsync_polarity */, 22 /* vsync_front_porch */, 1 /* vsync_pulse_width */, 23 /* vsync_back_porch */,
  0 /* pclk_active_neg */, 16000000 /* prefer_speed */, true /* auto_flush */);


#endif /* !defined(DISPLAY_DEV_KIT) */
/*******************************************************************************
   End of Arduino_GFX setting
 ******************************************************************************/

modify the following code

/* Display flushing */
void my_disp_flush(lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p)
{
  uint32_t w = (area->x2 - area->x1 + 1);
  uint32_t h = (area->y2 - area->y1 + 1);


#if (LV_COLOR_16_SWAP != 0)
  lcd->draw16bitBeRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h);
#else
  lcd->draw16bitRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h);
#endif


  lv_disp_flush_ready(disp);
}

into

/* Display flushing */
void my_disp_flush(lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p)
{


  uint32_t w = (area->x2 - area->x1 + 1);
  uint32_t h = (area->y2 - area->y1 + 1);
  


  //lcd.fillScreen(TFT_WHITE);
#if (LV_COLOR_16_SWAP != 0)
 lcd.pushImageDMA(area->x1, area->y1, w, h,(lgfx::rgb565_t*)&color_p->full);
#else
  lcd.pushImageDMA(area->x1, area->y1, w, h,(lgfx::rgb565_t*)&color_p->full);//
#endif


  lv_disp_flush_ready(disp);


}

Step 3: Use the quick search function(Ctrl+F) to replace lcd-> in the code with lcd.

👉️Back to FAQ page👈️

Download link for Android of GrowCube APP:

1.Please allow all the permission, especially Location Permission

2. After installation, firstly select Direct Connection Mode to update firmware

•  Direct Connection Mode: directly connect the device for control when there is no network outdoors.

  The mobile phone is directly connected to the wireless network sent by the device: growcube XXXX. This network is only used for communication between the device and the mobile phone, not for accessing the Internet. When the mobile phone prompts that the WiFi cannot access the network, click continue to use.

  After entering the device through the direct connection mode, you need to upgrade the firmware. After clicking the firmware to complete the upgrade, you can switch to the networking mode again. The networking is completed according to the operation, that is, the mobile phones and devices are connected to the WiFi in the home environment, that is, the WiFi in the user's home can normally access the network

3. After updating firmware, select Networking Mode to set up network configuration

Notice:

(1) Please don't use 5G network as it is currently not supported.

(2) It is no network when connect with WiFi named 'GrowCube_XXX', please switch to the APP and continue next step.

• USB C cable
• Laptop/PC
• ESP32 Display

Check whether the materials on the PCBA board are defective. Such as less material, false welding, tin and other bad phenomena.

• Firmware files
• For ESP32 dispaly:

• For ESP terminal:

• Flash download tool

2. Flash the firmware

Step1 Connect the ESP32 display to the laptop/PC with USB-C cable. The power indicator will light up.

Step2 Open the flash download tool.  

For the 2.4’’/2.8’’/3.5’’ ESP32 display, the chip select ESP32:

For the ESP terminal(SPI/RGB) and 4.3’’/5.0’’/7.0’’ ESP32 display, the chip select ESP32-S3:

Step3

①Choose the firmware files;

②Enter the address:

• For the 2.4’’/2.8’’/3.5’’ ESP32 display:

boot_app0.bin------0xe000

xxxx.ino.bin--------0x10000

xxxx.ino.bootloader.bin------0x1000

xxxx.ino.partitions.bin-------0x8000

• For the ESP terminal(SPI/RGB) and 4.3’’/5.0’’/7.0’’ ESP32 display:

boot_app0.bin------0xe000

xxxx.ino.bin--------0x10000

xxxx.ino.bootloader.bin------0x0

xxxx.ino.partitions.bin-------0x8000

③Check the firmware files;

④Select the correct port number;

⑤Click “Start” to download

Step4 Press and hold the boot button, and then press the reset button to go into the flashing mode.

Step5 After the download is complete, blue FINISH will be displayed, and the progress bar at the bottom shows that it has come to an end.

Step6 Press the reset button to show the demo.

Back to FAQs

I purchased the CrowPi2 - All in One Raspberry Pi Laptop & STEM Learning Platform. I am receiving a system error that I am unable to resolve. The error is no signal. I have tried multiple times different suggestions I have read on forums etc. Please advise on next steps. Thanks for your time.

Solution:

1.Check whether the HDMI signal connection is correct and whether the cable and HDMI adapter board are damaged.

2.Check whether it is an SD card problem:

Replace an SD card or burn another system, such as the Raspberry Pi os or CrowPi2 os, and then see if it can start normally.

3. Check whether there is a problem with the Raspberry Pi:

Uninstall the screws, remove the Raspberry Pi, and connect to a screen instead of the CrowPi2 to see if it can boot normally.

I recently bought this: https://www.elecrow.com/esp32-display-7-inch-hmi-display-rgb-tft-lcd-touch-screen-support-lvgl.html and I'm having a great time with it. But I would like to be able to update my Arduino sketch over the air (OTA) with ArduinoOTA. I've added the few lines of code I usually use with my other boards to enable OTA and I can see the port in the Arduino IDE, but when I try to upload the sketch, the displays reboot and the upload fails. I assumed that it was due to the "Huge APP(3MB No OTA/1MB SPIFFS)" setting, and I tried one other setting that did not have "No OTA" but the display did not work anymore (blank), so I put "Huge APP(3MB No OTA/1MB SPIFFS)" back and was able to revive the display. Before I destroy something, I wanted to know if there is a way to make OTA work with this display? What setting should I change?

Thanks,