CFTechno

[The `arduino_read` function](https://github.com/arduino-libraries/MKRWAN/blob/daf8d55a18e8cecb34328c3993e4459a5d12edc4/examples/MKRWANFWUpdate_standalone/serial_arduino.cpp#L18-L32) uses the `available()` routine but it could happen that the STM32 did not return a reply yet. This problem is what happened when using it on a...

Nucleo64 : undefined reference to `_open'

6

c:/users/xxx/appdata/local/arduino15/packages/stmicroelectronics/tools/xpack-arm-none-eabi-gcc/10.3.1-2.3/bin/../lib/gcc/arm-none-eabi/10.3.1/../../../../arm-none-eabi/bin/ld.exe: c:/users/xxx/appdata/local/arduino15/packages/stmicroelectronics/tools/xpack-arm-none-eabi-gcc/10.3.1-2.3/bin/../lib/gcc/arm-none-eabi/10.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m+fp/hard\libc_nano.a(lib_a-openr.o): in function `_open_r': (.text._open_r+0x10): undefined reference to `_open' collect2.exe: error: ld returned 1 exit status exit status 1 Compilation error: exit status 1

esp32s3: endlessboot loop with example

2

trying to get it working on a esp32s3 board. All audio-tools rtsp examples have the same behaviour. ``` 5:26:36.620 -> [ 333][V][AudioStreamer.cpp:18] AudioStreamer(): Creating Audio streamer 15:26:36.620 -> [ 340][I][AudioStreamer.cpp:180]...