CrowPanel ESP32 Display — ELECROW - FORUM

how can i Design the UI in linux

Nikkk — Mon, 07 Apr 2025 04:55:02 +0000

i am facing many issuse in linux to make a Design for my Crowpanel 2.4 inch ESP32 HMI 240x320 SPI TFT LCD Touch Screen can some one guide me how can i use LVGL or Arduino in Linux

CrowPanel ESP32-C3 1.28 Round SPI Flash Libraries?

bbroerman — Tue, 18 Feb 2025 04:36:35 +0000

I need to read/write data on the CrowPanel ESP32-C3 1.28 and the ESP32's Preferences library is not working (it's a known bug with ESP32-C3 apparently), but this CrowPanel comes with 16Mb of SPI flash. Does anyone know of the appropriate library to be able to use this?

DIS12824D : CrowPanel ESP32-C3 1.28 Round - Current / Power Usage

bbroerman — Sat, 01 Feb 2025 01:27:50 +0000

Hi, I'm wondering if anyone has measured the current / power usage of the CrowPanel 1.28 Round with the ESP32-C3? Both active, and when the ESP, display driver, and touch controller are all in sleep mode and the backlight is off. I have a similar panel (and have ordered this particular CrowPanel) and would like to compare... I'm looking to calculate the effective run-time for different battery sizes.

The panel I have now runs at about 64mA when active and about 4.3mA when everything is in sleep mode. Is it about the same for this panel?

ES32-wroom 2.8 in display will not program again

Marktecwiz — Sun, 06 Oct 2024 23:29:37 +0000

I have several ESp32 2.8 in displays and two of them stopped programming with the error:

Configuring flash size...
Flash will be erased from 0x00001000 to 0x00005fff...
Flash will be erased from 0x00008000 to 0x00008fff...
Flash will be erased from 0x0000e000 to 0x0000ffff...
Flash will be erased from 0x00010000 to 0x0004afff...
Compressed 18992 bytes to 13110...
A fatal error occurred: Packet content transfer stopped (received 8 bytes)

The problem is that GPIO 12 is connected to the touch screen
When this pin is high it interferes with the flash voltage.
I found this reference:https://www.esp32.com/viewtopic.php?t=27365
Bottom line you need to find the program espefuse.exe on you pc.
Mine was ... \Arduino15\packages\esp32\tools\esptoolenv\Scripts
First run espefuse.exe --help to make sure you can execute espefuse.exe.
You should get all the parameters that the progam supprts.
Then find out what port your dispslay is enumerating to (mine was Com6)
Then run this command
"espefuse.exe --port Com6 set_flash_voltage 3.3V"
you should get

Connecting...
Failed to get PID of a device on Com6, using standard reset sequence.
.
Detecting chip type... Unsupported detection protocol, switching and trying again...
Connecting...
Failed to get PID of a device on Com6, using standard reset sequence.
.
Detecting chip type... ESP32

=== Run "set_flash_voltage" command ===
Enable internal flash voltage regulator (VDD_SDIO) to 3.3V.

VDD_SDIO setting complete.

Check all blocks for burn...
idx, BLOCK_NAME,          Conclusion
[00] BLOCK0               is not empty
        (written ): 0x0000000401000000000008310000a00000c6b0b21cf9912000000000
        (to write): 0x00000000000000000001c00000000000000000000000000000000000
        (coding scheme = NONE)
.
This is an irreversible operation!
Type 'BURN' (all capitals) to continue.

You need to type "BURN" all caps then enter

BURN BLOCK0  - OK (all write block bits are set)
Reading updated efuses...
Successful

I was then able to burn load new programs into all the displays that would not program with this error.

CrowPanel Display Tutorials

pi61 — Tue, 24 Sep 2024 10:22:33 +0000

Does anyone know why CrowPanel ESP32 Screen Tutorials are no longer available on Youtube?
www.youtube.com/playlist?list=PLwh4PlcPx2Ge-h-Pfsa7juFeWMgXmv8lc