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Product: CrowPane hmil basic ESP32 5 inch SKU: DIS07050H-1
Question:
I am currently working on a project using CrowPanel 5.0"-HMI ESP32 Display 800x480 RGB TFT LCD Touch Screen, and I have encountered a challenge. I need to utilize an additional set of UART pins, but I am unable to find a comprehensive list of alternative functions for these pins.
Could anyone provide or direct me to a detailed list of alternative functions for the UART pins? Specifically, I am looking for information on CrowPanel 5.0"-HMI ESP32 Display 800x480 RGB TFT LCD Touch Screen and how to configure additional UART pins.
Answer:
Because the connection method between the CrowPanel 5-inch HMI screen and ESP32 is RGB565, and the ESP32 chip has limited IO ports, the CrowPanel only has one UART port and there are no extra pins that can be used as UART.
Product: CrowPane hmil basic ESP32 4.3 inch SKU: DIS06043H-1
Question:
I have a board of 4.3 Inch ESP32 HMI 480x272 LCD Resistive Touch Screen. I connected the pins going to the SD card on the board to use the MAX6675 K-Type Thermocouple Sensor by soldering the jumpers. I can take measurements for MAX6675 K-Type Thermocouple from the ESP32 screen. However, when I press the screen's touchscreen, the program breaks and both the touch and sensor reading do not work. So how can I ensure that both the sensor and the touchscreen work smoothly?
Answer:
You can insert the CD74HC4067 chip into the breadboard, and use Dupont wires to connect the control pins of the CD74HC4067 chip to the unused pins on the ESP32 chip. If your project does not need to use a speaker, you can occupy the IO18, IO42, and IO17 pins of the speaker, plus the IO38 pin of the GPIOD, which is enough for 4 control pins.
Product: CrowPane hmil basic ESP32 7 inch SKU: DIS08070H-1
Question:
I am trying to upload the a simple program to my HMI 5" display following the first example I did all the required changes and settings but I am always getting:
A fatal error occurred: Unable to verify flash chip connection (No serial data received.).
Failed uploading: uploading error: exit status 2
I tried all possible solution even I tried using different sequences of boot and rst buttons which gives me "waiting for download message" but still giving me the same error.
also I tried changing the version of the esp32 board versions going from 2.0.14 till 3.0.4 and all of them are giving me the same error?
Answer:
Please troubleshoot the issue through the following methods:
· Replace USB cable
· Check if the USB driver is installed
· Check if the settings are correct(please refer to: https://www.elecrow.com/wiki/ESP32_Display_5.0-inch_HMI_Arduino_Tutorial.html#upload-the-code)
· Follow this guide to upload firmware to check if there are any issues with serial port
Product: CrowPane hmil basic ESP32 3.5 inch SKU: DIS05035H-1
Question:
hello I am worken to deploy code on the board from git link which i am able to depoly but the dispay is not working(display is not showing any image) need help with the code can somone tel me where to change so code shuld work in the ESP32 Terminal with 3.5 inch parallel 480x320 TFT capacitive touch RGB display(RGB by chip ILI9488)?
Answer:
Please follow this instruction to upload the firmware and see if the screen is normal: https://forum.elecrow.com/index.php?p=/discussion/510/how-to-install-the-factory-demo-firmware-with-flash-download-tool/p1?new=1
Product: CrowPane hmil basic ESP32 3.5/5.0 inch SKU: DIS07050H-1
Question:
I believe both are having the RGB interface but i am seeing faster display response in the 3.5 inch than the 5 inch display. Is there any difference in the interfaces?
Answer:
That's because the flash size of the ESP32 Terminal is bigger than the 5.0"-HMI ESP32 Display.
Product: CrowPane hmil basic ESP32 7 inch SKU: DIS08070H-1
Question:
Is it possible to plug the Crowtail Speaker on the Crowpanel 7.0 to play sounds? If so, on which connector? If not, is there a product on Elecrow that could go on the SPK port of the Crowpanel?
However I have a servo plugged in GPIO_D in my setup, so I cannot use that one.
Answer:
Yes, you can connect to GPIO_D(IO38) which can output PWM.
You can plug the speaker into the UART0 port, and generate the tone signal by delay. For more information, please refer to the wiki:
Product: CrowPane hmil basic ESP32 5 inch SKU: DIS07050H-1
Question:
Is it possible to disable the touch capability in order to speed up its display refresh rate?
Answer:
Yes, you can disable touch and allocate space to the display.
Product: CrowPane hmil basic ESP32 7 inch SKU: DIS08070H-1
Question:
Having some issues with the touchscreens on the 7 inch display. For one of the screens, if I press the reset button on the back, the touchscreen works every other time, and if I hold down the reset button, it works every time I reset. Any suggestions on what to do?
Answer:
Refer to this link to fix it:
https://github.com/TAMCTec/gt911-arduino/issues/7
Product: CrowPane hmil basic ESP32 7 inch SKU: DIS08070H-1
Question:
An on/off button needs to be inserted as the current circuitry has the board always open when the battery is connected. In addition, I need to turn off the display when the battery is charging. The solution I found was to make some changes to the printed circuit board. Let's see if my considerations are feasible:In the blue detail, I intend to cut the track, interrupt the VIN circuit and make a new connection in green. Is this feasible?
Answer:
Yes, it's possible.
Product: CrowPane hmil basic ESP32 7 inch SKU: DIS08070H-1
Question:
Could you add an example which explains how to use the CrowPanel ESP32 Display 7.0-inch speaker interface??
Answer:
Power amplifier chip NS4168 with a built-in I2S digital audio interface.
· I2S_SDIN GPIO17
· I2S_LRCLK GPIO18
· I2S_BCLK GPIO42
Please refer to:
https://www.elecrow.com/wiki/ESP32_Display_7.0-inch_HMI_Arduino_Tutorial.html#example2-play-music