<![CDATA[PaperS3 cannot compile demo]]>Hello,
I just got My M5PaperS3 and I try to compiler the demo as shown in the tutorial Adruino M5PaperS3 but if get the following error:

c:\Users{user}\Documents\Arduino\libraries\epdiy\src\output_lcd\lcd_driver.c: In function 'init_bus_gpio':
c:\Users{user}\Documents\Arduino\libraries\epdiy\src\output_lcd\lcd_driver.c:339:28: error: 'lcd_periph_signals' undeclared (first use in this function); did you mean 'rmt_periph_signals'?
339 | DATA_LINES[i], lcd_periph_signals.panels[0].data_sigs[i], false, false
| ^~~~~~~~~~~~~~~~~~
| rmt_periph_signals
c:\Users{user}\Documents\Arduino\libraries\epdiy\src\output_lcd\lcd_driver.c:339:28: note: each undeclared identifier is reported only once for each function it appears in
c:\Users{user}\Documents\Arduino\libraries\epdiy\src\output_lcd\lcd_driver.c: In function 'init_lcd_peripheral':
c:\Users{user}\Documents\Arduino\libraries\epdiy\src\output_lcd\lcd_driver.c:487:26: error: 'lcd_periph_signals' undeclared (first use in this function); did you mean 'rmt_periph_signals'?
487 | periph_module_enable(lcd_periph_signals.panels[0].module);
| ^~~~~~~~~~~~~~~~~~
| rmt_periph_signals
c:\Users{user}\Documents\Arduino\libraries\epdiy\src\output_lcd\lcd_driver.c: In function 'deinit_lcd_peripheral':
c:\Users{user}\Documents\Arduino\libraries\epdiy\src\output_lcd\lcd_driver.c:562:25: error: 'lcd_periph_signals' undeclared (first use in this function); did you mean 'rmt_periph_signals'?
562 | periph_module_reset(lcd_periph_signals.panels[0].module);
| ^~~~~~~~~~~~~~~~~~
| rmt_periph_signals

exit status 1

Compilation error: exit status 1

Where the lcd_periph_signals should be defined ?

]]>https://community.m5stack.com/topic/7101/papers3-cannot-compile-demoRSS for NodeFri, 13 Mar 2026 14:00:16 GMTThu, 19 Dec 2024 17:30:23 GMT60<![CDATA[Reply to PaperS3 cannot compile demo on Mon, 14 Apr 2025 16:46:02 GMT]]>Hello,
I have the same problem. Has anyone found a solution?

]]>https://community.m5stack.com/post/28888https://community.m5stack.com/post/28888Mon, 14 Apr 2025 16:46:02 GMT<![CDATA[Reply to PaperS3 cannot compile demo on Thu, 26 Dec 2024 13:55:58 GMT]]>I have a similar Probelm:

Following the tutorial and using M5GFX 0.2.3 (same with 0.2.2), and epdiy 2.0.0 installed, i get multiple errors in compiler as soon as i switch to PSRAM= OPI PSRAM

/Documents/Arduino/libraries/M5GFX/src/M5GFX.cpp:84:16 (repeating until /Users/jank/Documents/Arduino/libraries/M5GFX/src/M5GFX.cpp:91:16)

"error: 'struct lcd_bus_config_t' has no member named 'data'; did you mean 'data_0'?
90 | lcd_config.data[6] = D6;
| ^~~~
| data_0"

  • the same with D0-D7

if i dont use PSRAM, it compiles, but wont display anything.

Setup:

Arduino IDE 2.3.2
Board: ESP32S3 DEV
Lib: esp32 (espresserif) 3.0.4 (same with 3.0.7)
M5Core1.0,
M5Unified 0.2.2
Epdiy 2.0.0 (same with 7.0)

]]>https://community.m5stack.com/post/27582https://community.m5stack.com/post/27582Thu, 26 Dec 2024 13:55:58 GMT<![CDATA[Reply to PaperS3 cannot compile demo on Fri, 20 Dec 2024 01:29:45 GMT]]>@JNVoirol
323085e3-ebb8-47e9-b569-a31c40a0f2f9-image.png
Just switch the esp32 library version in the boards manager to below 3.1.0.

]]>https://community.m5stack.com/post/27517https://community.m5stack.com/post/27517Fri, 20 Dec 2024 01:29:45 GMT<![CDATA[Reply to PaperS3 cannot compile demo on Thu, 19 Dec 2024 18:26:21 GMT]]>I found the mistake: replace "lcd_periph_signals" by "lcd_periph_rgb_signals.

]]>https://community.m5stack.com/post/27516https://community.m5stack.com/post/27516Thu, 19 Dec 2024 18:26:21 GMT