PlatformIO with Uno R4 WiFi - I2S error

[groym]

Just starting to test these promising tool with, for now, a new UNO R4 WiFi and PlatformIO. I know that setup works when running other basic examples (ie not from arduino-audio-tools). But when using the most basic example (examples/examples-stream/streams-generator-serial), compilation fails with a missing dependency on r_i2s_api.h.

It's as though the Renesas section of the Audiotoolsconfig.h file does not map to/recognize the board and defaults to use I2S...

References below.

The platformio.ini contains:

[env:uno_r4_wifi]
platform = renesas-ra
board = uno_r4_wifi
framework = arduino
lib_deps = https://github.com/pschatzmann/arduino-audio-tools.git

build_flags = -DCORE_DEBUG_LEVEL=5 -Wno-unused-variable -Wno-unused-but-set-variable -Wno-unused-function -Wno-format-extra-args
monitor_speed = 115200
monitor_filters = esp32_exception_decoder

Error Output:
Processing uno_r4_wifi (platform: renesas-ra; board: uno_r4_wifi; framework: arduino)

Verbose mode can be enabled via -v, --verbose option
CONFIGURATION: https://docs.platformio.org/page/boards/renesas-ra/uno_r4_wifi.html
PLATFORM: Renesas RA (1.7.0) > Arduino Uno R4 WiFi
HARDWARE: RA4M1 48MHz, 32KB RAM, 256KB Flash
DEBUG: Current (cmsis-dap) On-board (cmsis-dap) External (jlink)
PACKAGES:

• framework-arduinorenesas-uno @ 1.4.1
• tool-bossac @ 1.10901.0 (1.9.1)
• toolchain-gccarmnoneeabi @ 1.70201.0 (7.2.1)
  LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
  LDF Modes: Finder ~ chain, Compatibility ~ soft
  Found 23 compatible libraries
  Scanning dependencies...
  Dependency Graph
  |-- audio-tools @ 1.1.0+sha.f55d697
  Building in release mode
  Compiling .pio/build/uno_r4_wifi/src/main.cpp.o
  Compiling .pio/build/uno_r4_wifi/lib610/WiFiS3/Modem.cpp.o
  Compiling .pio/build/uno_r4_wifi/lib610/WiFiS3/StringHelpers.cpp.o
  Compiling .pio/build/uno_r4_wifi/lib610/WiFiS3/WiFi.cpp.o
  Compiling .pio/build/uno_r4_wifi/lib610/WiFiS3/WiFiClient.cpp.o
  Compiling .pio/build/uno_r4_wifi/lib610/WiFiS3/WiFiFileSystem.cpp.o
  Compiling .pio/build/uno_r4_wifi/lib610/WiFiS3/WiFiSSLClient.cpp.o
  Compiling .pio/build/uno_r4_wifi/lib610/WiFiS3/WiFiServer.cpp.o
  Compiling .pio/build/uno_r4_wifi/lib610/WiFiS3/WiFiUdp.cpp.o
  Compiling .pio/build/uno_r4_wifi/lib5a5/I2S/I2S.cpp.o
  In file included from /Users/guylain/.platformio/packages/framework-arduinorenesas-uno/libraries/I2S/I2S.cpp:20:0:
  /Users/guylain/.platformio/packages/framework-arduinorenesas-uno/libraries/I2S/I2S.h:22:10: fatal error: r_i2s_api.h: No such file or directory

---

• Looking for r_i2s_api.h dependency? Check our library registry!
• CLI > platformio lib search "header:r_i2s_api.h"
• Web > https://registry.platformio.org/search?q=header:r_i2s_api.h

---

#include "r_i2s_api.h"
^~~~~~~~~~~~~
compilation terminated.
*** [.pio/build/uno_r4_wifi/lib5a5/I2S/I2S.cpp.o] Error 1
============================================================= [FAILED] Took 4.70 seconds =============================================================

[pschatzmann]

As far as I know, the Uno R4 does not support I2S. I just tested this sketch in Arduino and it is working fine, so there seems to be something wrong in PlatformIO!

Double check why in PlatformIO this is included and file an issue with either Arduino or PlatformIO

[groym]

I know.But when compiling, the tools config file should should attempt to include that capability. But seemingly, it tries when using platformioHow is the platform/board correlation established so that the proper toolsxonfig section applies? It does not currently seem to recognize the Renesas one for the Uno R4 WiFi as defined in the platformio.ini file.GSent from my iPhoneOn Apr 2, 2025, at 9:10 PM, Phil Schatzmann ***@***.***> wrote: As far as I know, the Uno R4 does not support I2S —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you authored the thread.Message ID: ***@***.***>