Waveshare ESP32-S3-Touch-LCD-4 - Unable to use touch and I2C sensor at the same time

[dinisfc]

Currently testing a prototype built from the Squareline Porting example. This board uses the GT911 Touch controller which uses the same channel as any other I2C external device. I'm using a SEN66 sensor, using its library which requires the use of the Wire library. When I do this, panel->init() will fail and show something like this:

E (1506) i2c: i2c driver install error
Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled.

Core 1 register dump:
PC : 0x42058aab PS : 0x00060330 A0 : 0x82001d2e A1 : 0x3fcaf8b0
A2 : 0x00000000 A3 : 0x3c060164 A4 : 0x00000010 A5 : 0x3fcaaf94
A6 : 0x00000024 A7 : 0x0000000a A8 : 0x8202fd80 A9 : 0x3fcaf890
A10 : 0x00000002 A11 : 0x3c060164 A12 : 0x3fcaf6d8 A13 : 0x3fcaf798
A14 : 0x3fcaf7e8 A15 : 0x3fcab140 SAR : 0x00000018 EXCCAUSE: 0x0000001c
EXCVADDR: 0x00000008 LBEG : 0x40056f08 LEND : 0x40056f12 LCOUNT : 0x00000000

Backtrace: 0x42058aa8:0x3fcaf8b0 0x42001d2b:0x3fcaf8d0 0x42033681:0x3fcaf8f0 0x4037d062:0x3fcaf910

And then get stuck in a loop doing the same.

I'm using version 0.1.8 per the Waveshare instructions. I'm using an ESP IOExpander library, v0.0.4, altered by Waveshare, so updating any of this libraries breaks the code. I'm also using lv_conf.h by Waveshare. Being a dev board the connections can't be altered.

Would like to know if there's a way to not have the I2C error and if, maybe, making the updated library (0.2.2 as of posting) work be worth it.

Note: the LCD-4 and LCD-4.3 are not the same! For LCD-4, the custom board configurations are used.

[Lzw655]

Hi @dinisfc,

1. For the conflict between this library and the Wire library on I2C, here's a solution: set ESP_PANEL_TOUCH_BUS_SKIP_INIT_HOST to 1 in ESP_Panel_Board_Custom.h. This way, the driver will not initialize the I2C host internally. You will then need to manually initialize the I2C host using Wire in your .ino file before initializing the panel.
2. Since the Release v1.0.0 is in progress, I think it's better to update your project after it's ready.
3. BTW, we can support the ESP32-S3-Touch-LCD-4 board in the library if it's helpful for you.

[dinisfc]

Thanks for the answer.
Setting ESP_PANEL_TOUCH_BUS_SKIP_INIT_HOST to 1 and having Wire.begin before anything else worked.

[dinisfc]

I've since updated to 0.2.2 and I'm now having errors again, even with ESP_PANEL_TOUCH_BUS_SKIP_INIT_HOST at 1.
I'm getting:

E (5056) i2c: i2c driver install error
E (5057) ESP_PanelHost: [ESP_FAIL] begin(153): I2C[0] install driver failed
E (5057) ESP_Panel: init(470): Initialize host failed
E (5061) ESP_Panel: begin(489): Panel is not initialized
Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled.

Core 1 register dump:
PC : 0x420273cb PS : 0x00060130 A0 : 0x82027445 A1 : 0x3fcaf8e0
A2 : 0x00000000 A3 : 0x3fcaf908 A4 : 0x3fcaf90c A5 : 0x3c071251
A6 : 0x0000001c A7 : 0x00000003 A8 : 0x0000001c A9 : 0x3fcaf8c0
A10 : 0x00000005 A11 : 0x3fcaf908 A12 : 0x3fcaf90c A13 : 0x00000000
A14 : 0x3fcaf790 A15 : 0xff000000 SAR : 0x00000004 EXCCAUSE: 0x0000001c
EXCVADDR: 0x00000020 LBEG : 0x400556d5 LEND : 0x400556e5 LCOUNT : 0xfffffffe

Backtrace: 0x420273c8:0x3fcaf8e0 0x42027442:0x3fcaf900 0x4202751d:0x3fcaf930 0x420257a5:0x3fcaf950 0x4201eaec:0x3fcaf970 0x420329ba:0x3fcaf990 0x42001cef:0x3fcaf9b0 0x4203846d:0x3fcaf9d0 0x4037cfc6:0x3fcaf9f0

Wire.begin and the sensor's reading start function are both before the screen. Running only the sensor or screen does not cause this error. While the system enters a loop showing this error repeatedly, the sensor remains on and running.

[Lzw655]

Hi @dinisfc,

Could you share the whole ESP_Panel_Board_Custom.h file? If the board uses an IO expander, which requires the use of the I2C bus, the ESP_PANEL_EXPANDER_SKIP_INIT_HOST should be disabled too.

[dinisfc]

Changing ESP_PANEL_EXPANDER_SKIP_INIT_HOST to 0 fixed it. Thanks.

[betamoojw]

Hi @dinisfc,

1. For the conflict between this library and the Wire library on I2C, here's a solution: set ESP_PANEL_TOUCH_BUS_SKIP_INIT_HOST to 1 in ESP_Panel_Board_Custom.h. This way, the driver will not initialize the I2C host internally. You will then need to manually initialize the I2C host using Wire in your .ino file before initializing the panel.
2. Since the Release v1.0.0 is in progress, I think it's better to update your project after it's ready.
   3. BTW, we can support the ESP32-S3-Touch-LCD-4 board in the library if it's helpful for you.

I was wondering when we could use the ESP32-S3-Touch-LCD-4 board in the library. It will be helpful for the waveshare ESP32-S3-Touch-LCD-4 user without complex additional configuration.

[Lzw655]

Hi @dinisfc,

1. For the conflict between this library and the Wire library on I2C, here's a solution: set ESP_PANEL_TOUCH_BUS_SKIP_INIT_HOST to 1 in ESP_Panel_Board_Custom.h. This way, the driver will not initialize the I2C host internally. You will then need to manually initialize the I2C host using Wire in your .ino file before initializing the panel.
2. Since the Release v1.0.0 is in progress, I think it's better to update your project after it's ready.
   3. BTW, we can support the ESP32-S3-Touch-LCD-4 board in the library if it's helpful for you.

I was wondering when we could use the ESP32-S3-Touch-LCD-4 board in the library. It will be helpful for the waveshare ESP32-S3-Touch-LCD-4 user without complex additional configuration.

Hi @Y1hsiaochunnn, could you help us add support for ESP32-S3-Touch-LCD-4 in the library?

[waszee]

I am trying to use a Waveshare-ESP32-s3-lcd-4_3 with a BME680 temperature, humidity, pressure, and gas sensor that uses Adafruit drivers using Wire.h. The sensor works fine if I do not try to use the Waveshare panel display and just output to Wifi or the Serial Monitor. If I just test the Waveshare display with the Lvgl ver8 simple port example that also works and I can draw some neat charts and displays. However linking the sensor to the display codes gives me a message" I2c CONFLICT! driver_ng is not allowed to be used with this old driver". I have tried the suggestions to reconfig the custom panel board conf to skip the i2c initiation and the i2c init for the expander and just use Wire.h but that still did not remove the conflict and get a crash loop. I am not sure what library is using the old i2c drivers. Suspect others will encounter this issue more often with the newer ide updates. Any suggestions as to what to try next?

[Lzw655]

Hi @waszee,

I'm sorry you've encountered this problem. Currently, both Wire and this library use the old version of the I2C driver. It is likely that some of your other drivers (such as BME680) use the new version of the I2C driver, which leads to conflicts.

[Y1hsiaochunnn]

hey @Lzw655 ,

Has the library had any trouble porting new versions of i2c driver such as i2c_master so far? I'm waiting to hear from you~

[waszee]

Thank you for the comments. I am going to monitor posts for solutions. Instead of the i2c BME680 sensor I connected a simpler DHT_11 sensor which uses the GPIO6 pin on the Waveshare board and does not use I2C. That is working and I can read temperature and humidity. I am not very happy with the DHT_11 response and precision as it fails to show small changes due to HVAC that the BME680 does detect and I like to monitor. I am now trying to configure the unit to add a MSQTT client post while maintaining the local sensor's visual lcd charting display. First attempt resulted in display flashes followed by reboots. After not trying to run a MSQTT client loop and making the WIFI connection early in setup, I am getting a stable display that is charting data and the publish command is at least not crashing. I do not have my "homeassistant" side configured to accept the data so still work in progress. The publish command is triggered from the add data timer event inside the lvgl loop. I tried the Uncle Rus BME680 drivers with it but like the Adafruit they work without LVGL but gave the i2c Conflict when I tried to link to the existing I2C used to setup the touch panel. Could easily be a simple mistake in coding that I am making.

I have tried a couple of other approaches. I used Platformio and the Espressif IDE to make some displays using LGVL version 8.3.11. That worked but the compiler gives a flag that I need to update from the old i2c driver.

In addition, both Platformio and Arduinio IDE constantly try to get me to update from LGVL version 8 to version 9.2. I have tried and think the actual chart graphic commands will changed very little. I have not been able to figure out the port to link the hardware display panels to LVGL. The arduino simple port example uses a file lvgl_V8_port,h but I have not found enough examples to show how to create the lvgl_V9_port.h and lvg_V9_port.c.
If any of you have that please post and let me know where to look for it. Found some LVGL 9 examples using "cheap yellow" displays and Espressif has posted some examples for their boards but I got lost trying to correlate to the Waveshare-esp32-s3-touch-lcd-4.3 that I have.