krzmaz / pico-w-webserver-example Goto Github PK

Not to depend on serial port communication to obtain IP address, let's use mDNS

Let's add linters to express and enforce the projects preferred coding style

Similar to the pico_bootsel_via_double_reset, the code will enter AP mode when the board is reset twice within a certain amount of time.

For now, the setup mode can be mocked by an infinite loop with flashing LED.

When the board enters setup mode, an Access Point needs to be created to allow connecting from another device to an configuration endpoint for now hosting a blank "hello world" page.

The compiler complains that the bool state is not initialised in ssi.c.

Easily fixed by

bool state = 0;

on those lines.

Thanks for a very useful example.

Useful resource: https://www.makermatrix.com/blog/read-and-write-data-with-the-pi-pico-onboard-flash/

Due to the wear considerations (flash having the lifetime of 1000-10000 write-erase cycles), best would be to start with https://github.com/littlefs-project/littlefs as CMake external project dependency. If that's too problematic, a simpler approach can be considered with proper warnings to the users, see: https://arduino-pico.readthedocs.io/en/latest/eeprom.html.

Within this issue, retrieving the configuration during preparation of the configuration page and writing the data entered in the configuration page to flash is enough.

The configuration endpoint needs to have a form containing WiFi SSID and password, and allow easy addition of new fields

Thanks, your example is very good and unique.
I'm working with pi pico with C and Windows 10 (Spanish version).

I have problems with the file "my_fsdata.c" the the content is
#define FS_ROOT file
#define FS_NUMFILES 0

It means, no file was found and an error was reported by the cmake.
->FIND: formato de parámetros incorrecto<- or "FIND wrong parameter format".

I have the files from your example, into the project.
\src\fs\index.html
\src\fs\ssi.shtml
The Perl file is running from \src\external

The PERL version is : This is perl 5, version 32, subversion 1 (v5.32.1) built for MSWin32-x64-multi-thread

The find line is:
chdir("fs");
open(FILES, "find . -type f |");

Please, do you know which can be the problem into this PERL file ?
Thanks Carlos

Ubuntu with Build chain installed as per Pico C/C++ doco; Wifi Scan example project builds and runs okay.

I currently dont know enough about CMake/Build process be able to debug the build process yet, except for the cmake build.

Vanilla instance of pico-w-webserver-example

Build within vscode OR using ./build.sh results in Build error:-

[build] [ 98%] Building C object src/CMakeFiles/pico_w_webserver.dir/home/mat/pico/pico-sdk/src/rp2_common/hardware_adc/adc.c.obj
[build] [100%] Linking CXX executable pico_w_webserver.elf
[build] /usr/lib/gcc/arm-none-eabi/10.3.1/../../../arm-none-eabi/bin/ld: cannot find -lcyw43_driver_base: No such file or directory
[build] collect2: error: ld returned 1 exit status
[build] gmake[2]: *** [src/CMakeFiles/pico_w_webserver.dir/build.make:2967: src/pico_w_webserver.elf] Error 1
[build] gmake[1]: *** [CMakeFiles/Makefile2:1638: src/CMakeFiles/pico_w_webserver.dir/all] Error 2
[build] gmake: *** [Makefile:91: all] Error 2
[proc] The command: /usr/bin/cmake --build /home/mat/pico/pico-w-webserver-example-main/build --config Debug --target all -j 10 -- exited with code: 2

If it helps, cmake tracing shows;

Running with expanded trace output on.
-- Found Perl: /usr/bin/perl (found version "5.34.0")
-- Defaulting build type to 'Release' since not specified.
-- The C compiler identification is GNU 10.3.1
-- The CXX compiler identification is GNU 10.3.1
-- The ASM compiler identification is GNU
-- Found assembler: /usr/bin/arm-none-eabi-gcc
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/arm-none-eabi-gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/arm-none-eabi-g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found Python3: /usr/bin/python3.10 (found version "3.10.6") found components: Interpreter
-- Configuring done
-- Generating done
-- Build files have been written to: /home/mat/pico/pico-w-webserver-example-main/build