Hi Community,
i think i have a simple Problem but cant solve it on my own.
i started building a MIDI-controller on a teensy 3.2 with Arduino IDE, when i realized that its gonna be more Code then i thought, i wanted to switch to Platformio running on Atom, because of some reason you all know 
so i take the code from the .ino file i wrote in Arduino IDE, copy/paste it to main.cpp include the Arduino.h library and the Midi.h library with
> #include <Arduino.h>
> #include <MIDI.h>
the files for the library are under /lib
platformio run
Compiling .pioenvs\teensy31\FrameworkArduino\pins_teensy.o
Compiling .pioenvs\teensy31\FrameworkArduino\ser_print.o
Compiling .pioenvs\teensy31\FrameworkArduino\serial1.o
src\main.cpp: In function 'void setup()':
src\main.cpp:32:3: error: 'usbMIDI' was not declared in this scope
usbMIDI.setHandleRealTimeSystem(beatClock);
^
src\main.cpp:32:35: error: 'beatClock' was not declared in this scope
usbMIDI.setHandleRealTimeSystem(beatClock);
^
src\main.cpp: In function 'void loop()':
src\main.cpp:50:3: error: 'usbMIDI' was not declared in this scope
usbMIDI.read();
^
*** [.pioenvs\teensy31\src\main.o] Error 1
[ERROR] Took 3.17 seconds
Linter
Severity Provider Description Line
Error Build error: 'usbMIDI' was not declared in this scopee 32:3
Error Build error: 'beatClock' was not declared in this scopee 32:35
Error Build error: 'usbMIDI' was not declared in this scopee 50:3
i tried to put the files in /src/includes and project/inlcudes but didnt change a thing 
i cant even figure out if it is a library problem, a declaration problem,…
as you can see i’m pretty new to all of Arduino, Code, Platformio etc. so please help me to work on my project.
thank you Chris
Well followed the link:
adding:
> void beatClock(byte realtimebyte);
was helping to declare beatClock 
how to declare usbMIDI is still not clear to me, thank u for the help i gonna stay on ArduinoIDE i thought Platformio would make things easier… stuff is just getting more complicated to me
Why don’t youe want to use INO files without changes? PlatformIO works with INO files too.
> platformio run
> Looking for dependencies...
> No dependencies
> Compiling .pioenvs\teensy31\src\aufger_umt_16_led__ber_2_595.ino.o
> Compiling .pioenvs\teensy31\FrameworkArduino\AudioStream.o
> Compiling .pioenvs\teensy31\FrameworkArduino\DMAChannel.o
> Compiling .pioenvs\teensy31\FrameworkArduino\EventResponder.o
> Compiling .pioenvs\teensy31\FrameworkArduino\HardwareSerial1.o
> C:/Users/Chris/Documents/PlatformIO/Projects/171126-205858-teensy31/src/aufger_umt_16_led__ber_2_595.ino: In function 'voi
> d setup()':
> C:/Users/Chris/Documents/PlatformIO/Projects/171126-205858-teensy31/src/aufger_umt_16_led__ber_2_595.ino:26:3: error: 'usb
> MIDI' was not declared in this scope
> usbMIDI.setHandleRealTimeSystem(beatClock);
> ^
> C:/Users/Chris/Documents/PlatformIO/Projects/171126-205858-teensy31/src/aufger_umt_16_led__ber_2_595.ino: In function 'voi
> d loop()':
> C:/Users/Chris/Documents/PlatformIO/Projects/171126-205858-teensy31/src/aufger_umt_16_led__ber_2_595.ino:45:3: error: 'usb
> MIDI' was not declared in this scope
> usbMIDI.read();
> ^
> *** [.pioenvs\teensy31\src\aufger_umt_16_led__ber_2_595.ino.o] Error 1
> [ERROR] Took 3.32 seconds
doesnt really work for me
> platformio run
> Compiling .pioenvs\teensy31\FrameworkArduino\WMath.o
> Compiling .pioenvs\teensy31\FrameworkArduino\WString.o
> Compiling .pioenvs\teensy31\FrameworkArduino\analog.o
> C:/Users/Chris/Documents/PlatformIO/Projects/171126-205858-teensy31/src/aufger_umt_16_led__ber_2_595.ino:3:1: error: 'buil
> d_flags' does not name a type
> build_flags = -D USB_MIDI
> ^
> C:/Users/Chris/Documents/PlatformIO/Projects/171126-205858-teensy31/src/aufger_umt_16_led__ber_2_595.ino: In function 'voi
> d setup()':
> C:/Users/Chris/Documents/PlatformIO/Projects/171126-205858-teensy31/src/aufger_umt_16_led__ber_2_595.ino:27:3: error: 'usb
> MIDI' was not declared in this scope
> usbMIDI.setHandleRealTimeSystem(beatClock);
> ^
> C:/Users/Chris/Documents/PlatformIO/Projects/171126-205858-teensy31/src/aufger_umt_16_led__ber_2_595.ino: In function 'voi
> d loop()':
> C:/Users/Chris/Documents/PlatformIO/Projects/171126-205858-teensy31/src/aufger_umt_16_led__ber_2_595.ino:39:3: error: 'usb
> MIDI' was not declared in this scope
> usbMIDI.read();
> ^
> C:/Users/Chris/Documents/PlatformIO/Projects/171126-205858-teensy31/src/aufger_umt_16_led__ber_2_595.ino: In function 'voi
> d beatClock(byte)':
> C:/Users/Chris/Documents/PlatformIO/Projects/171126-205858-teensy31/src/aufger_umt_16_led__ber_2_595.ino:44:22: error: 'ST
> ART' was not declared in this scope
> if(realtimebyte == START) { zaehler = 0; zeitAlt = millis(); }
> ^
> Compiling .pioenvs\teensy31\FrameworkArduino\avr_emulation.o
> *** [.pioenvs\teensy31\src\aufger_umt_16_led__ber_2_595.ino.o] Error 1
> [ERROR] Took 3.34 seconds
It should be added to platformio.ini.
1 Like
Thank you very much ivankravets! you spend enough time to help a noob like me. Lets keep on building my own MIDI-controller 
Does it work now? Please give us a star
here
yes it works
from now on programming on PlatformIO.
Star done!
Thanks again!
1 Like