round value not declared magnetic levitator

Projects Programming
1

im trying to make a magletic levitator and i keep getting error this error message and cant figure out what to do about it. sorry ive just started with arduino, any help greatly appreciated thanks

code and schematic are in attachments

Arduino: 1.8.1 (Windows 10), Board: "Arduino/Genuino Uno"

magnetic_levitation:60: error: 'roundValue' was not declared in this scope

const int gMidpoint = roundValue((MAX_PWM_VALUE - MIN_PWM_VALUE) / 2); //The midpoint of our PWM range

^

exit status 1
'roundValue' was not declared in this scope

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MagneticLevitation.ino (14 KB)

MagneticLevitatorArduino.PNG
MagneticLevitatorArduino.PNG1653×850 31.7 KB

2

i set it to show verbose to show more info and it spit out this error code

Arduino: 1.8.1 (Windows 10), Board: "Arduino/Genuino Uno"

C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\mike\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\mike\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\mike\Documents\Arduino\libraries -fqbn=arduino:avr:uno -ide-version=10801 -build-path C:\Users\mike\AppData\Local\Temp\arduino_build_947318 -warnings=none -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.arduinoOTA.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avr-gcc.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avrdude.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -verbose C:\Users\mike\Desktop\magnetic_levitation\magnetic_levitation.ino
C:\Program Files (x86)\Arduino\arduino-builder -compile -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\mike\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\mike\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\mike\Documents\Arduino\libraries -fqbn=arduino:avr:uno -ide-version=10801 -build-path C:\Users\mike\AppData\Local\Temp\arduino_build_947318 -warnings=none -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.arduinoOTA.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avr-gcc.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avrdude.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -verbose C:\Users\mike\Desktop\magnetic_levitation\magnetic_levitation.ino
Using board 'uno' from platform in folder: C:\Program Files (x86)\Arduino\hardware\arduino\avr
Using core 'arduino' from platform in folder: C:\Program Files (x86)\Arduino\hardware\arduino\avr
Detecting libraries used...
"C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10801 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino" "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard" "C:\Users\mike\AppData\Local\Temp\arduino_build_947318\sketch\magnetic_levitation.ino.cpp" -o "nul"
Generating function prototypes...
"C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10801 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino" "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard" "C:\Users\mike\AppData\Local\Temp\arduino_build_947318\sketch\magnetic_levitation.ino.cpp" -o "C:\Users\mike\AppData\Local\Temp\arduino_build_947318\preproc\ctags_target_for_gcc_minus_e.cpp"
"C:\Program Files (x86)\Arduino\tools-builder\ctags\5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "C:\Users\mike\AppData\Local\Temp\arduino_build_947318\preproc\ctags_target_for_gcc_minus_e.cpp"
Compiling sketch...
"C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10801 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino" "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard" "C:\Users\mike\AppData\Local\Temp\arduino_build_947318\sketch\magnetic_levitation.ino.cpp" -o "C:\Users\mike\AppData\Local\Temp\arduino_build_947318\sketch\magnetic_levitation.ino.cpp.o"
magnetic_levitation:60: error: 'roundValue' was not declared in this scope

const int gMidpoint = roundValue((MAX_PWM_VALUE - MIN_PWM_VALUE) / 2); //The midpoint of our PWM range

^

exit status 1
'roundValue' was not declared in this scope

3

(deleted)

MagneticLevitation.ino (13.5 KB)

4

hey thanks alot i appreciate that