So, I know this is an incredibly frequent problem that people seem to experience on here and after endlessly scrolling through this forum searching for answers nothing at all has worked.
I keep getting the "Error opening serial port 'com3'.(port busy)" message when trying to open the serial monitor after compiling my code for a ultrasonic sensor. I've tried most of the suggestions on here and I still get the message.
For some reason I can open the Serial monitor when the code is compiling but not once it has compiled. Also, I have two USB ports on my laptop but they both show up as COM3. I found this unusual.
Any help would be greatly appreciated!
Error message:
Arduino: 1.8.19 (Windows Store 1.8.57.0) (Windows 10), Board: "Raspberry Pi Pico, 2MB (no FS), 125 MHz, Small (-Os) (standard), Disabled, Disabled, None, Pico SDK"
C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware -hardware C:\Users\sean_\OneDrive\Documents\ArduinoData\packages -tools C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\tools-builder -tools C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -tools C:\Users\sean_\OneDrive\Documents\ArduinoData\packages -built-in-libraries C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\libraries -libraries C:\Users\sean_\OneDrive\Documents\Arduino\libraries -fqbn=rp2040:rp2040:rpipico:flash=2097152_0,freq=125,opt=Small,rtti=Disabled,dbgport=Disabled,dbglvl=None,usbstack=picosdk -vid-pid=2E8A_00C0 -ide-version=10819 -build-path C:\Users\sean_\AppData\Local\Temp\arduino_build_298198 -warnings=none -build-cache C:\Users\sean_\AppData\Local\Temp\arduino_cache_639404 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.pqt-elf2uf2.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-elf2uf2\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-elf2uf2-1.3.3-a-ed6d983.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-elf2uf2\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-pioasm.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-pioasm\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-pioasm-1.3.3-a-ed6d983.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-pioasm\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-mklittlefs.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-mklittlefs\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-mklittlefs-1.3.3-a-ed6d983.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-mklittlefs\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-gcc.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-gcc\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-gcc-1.3.3-a-ed6d983.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-gcc\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-python3.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-python3\1.0.1-base-3a57aed -prefs=runtime.tools.pqt-python3-1.0.1-base-3a57aed.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-python3\1.0.1-base-3a57aed -prefs=runtime.tools.pqt-openocd.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-openocd\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-openocd-1.3.3-a-ed6d983.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-openocd\1.3.3-a-ed6d983 -verbose C:\Users\sean_\OneDrive\Documents\Arduino\Arduino\Arduino.ino
C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\arduino-builder -compile -logger=machine -hardware C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware -hardware C:\Users\sean_\OneDrive\Documents\ArduinoData\packages -tools C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\tools-builder -tools C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -tools C:\Users\sean_\OneDrive\Documents\ArduinoData\packages -built-in-libraries C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\libraries -libraries C:\Users\sean_\OneDrive\Documents\Arduino\libraries -fqbn=rp2040:rp2040:rpipico:flash=2097152_0,freq=125,opt=Small,rtti=Disabled,dbgport=Disabled,dbglvl=None,usbstack=picosdk -vid-pid=2E8A_00C0 -ide-version=10819 -build-path C:\Users\sean_\AppData\Local\Temp\arduino_build_298198 -warnings=none -build-cache C:\Users\sean_\AppData\Local\Temp\arduino_cache_639404 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.pqt-elf2uf2.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-elf2uf2\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-elf2uf2-1.3.3-a-ed6d983.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-elf2uf2\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-pioasm.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-pioasm\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-pioasm-1.3.3-a-ed6d983.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-pioasm\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-mklittlefs.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-mklittlefs\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-mklittlefs-1.3.3-a-ed6d983.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-mklittlefs\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-gcc.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-gcc\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-gcc-1.3.3-a-ed6d983.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-gcc\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-python3.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-python3\1.0.1-base-3a57aed -prefs=runtime.tools.pqt-python3-1.0.1-base-3a57aed.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-python3\1.0.1-base-3a57aed -prefs=runtime.tools.pqt-openocd.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-openocd\1.3.3-a-ed6d983 -prefs=runtime.tools.pqt-openocd-1.3.3-a-ed6d983.path=C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-openocd\1.3.3-a-ed6d983 -verbose C:\Users\sean_\OneDrive\Documents\Arduino\Arduino\Arduino.ino
Using board 'rpipico' from platform in folder: C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0
Using core 'rp2040' from platform in folder: C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0
Detecting libraries used...
"C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-gcc\1.3.3-a-ed6d983/bin/arm-none-eabi-g++" -c -Werror=return-type "-IC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/tools/libpico" -DCFG_TUSB_MCU=OPT_MCU_RP2040 -DUSB_VID=0x2e8a -DUSB_PID=0x000a "-DUSB_MANUFACTURER="Raspberry Pi"" "-DUSB_PRODUCT="Pico"" -march=armv6-m -mcpu=cortex-m0plus -mthumb -ffunction-sections -fdata-sections -fno-exceptions "-iprefixC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/" "@C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/lib/platform_inc.txt" -fno-rtti -std=gnu++17 -g -w -x c++ -E -CC -DSERIALUSB_PID=0x000a -DUSBD_MAX_POWER_MA=250 -DF_CPU=125000000L -DARDUINO=10819 -DARDUINO_RASPBERRY_PI_PICO "-DBOARD_NAME="RASPBERRY_PI_PICO"" -DARDUINO_ARCH_RP2040 -Os "-IC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0\cores\rp2040" "-IC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0\variants\rpipico" "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198\sketch\Arduino.ino.cpp" -o nul
Generating function prototypes...
"C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-gcc\1.3.3-a-ed6d983/bin/arm-none-eabi-g++" -c -Werror=return-type "-IC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/tools/libpico" -DCFG_TUSB_MCU=OPT_MCU_RP2040 -DUSB_VID=0x2e8a -DUSB_PID=0x000a "-DUSB_MANUFACTURER="Raspberry Pi"" "-DUSB_PRODUCT="Pico"" -march=armv6-m -mcpu=cortex-m0plus -mthumb -ffunction-sections -fdata-sections -fno-exceptions "-iprefixC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/" "@C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/lib/platform_inc.txt" -fno-rtti -std=gnu++17 -g -w -x c++ -E -CC -DSERIALUSB_PID=0x000a -DUSBD_MAX_POWER_MA=250 -DF_CPU=125000000L -DARDUINO=10819 -DARDUINO_RASPBERRY_PI_PICO "-DBOARD_NAME="RASPBERRY_PI_PICO"" -DARDUINO_ARCH_RP2040 -Os "-IC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0\cores\rp2040" "-IC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0\variants\rpipico" "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198\sketch\Arduino.ino.cpp" -o "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198\preproc\ctags_target_for_gcc_minus_e.cpp"
"C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\tools-builder\ctags\5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198\preproc\ctags_target_for_gcc_minus_e.cpp"
Compiling sketch...
"C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-gcc\1.3.3-a-ed6d983/bin/arm-none-eabi-g++" -c -Werror=return-type "-IC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/tools/libpico" -DCFG_TUSB_MCU=OPT_MCU_RP2040 -DUSB_VID=0x2e8a -DUSB_PID=0x000a "-DUSB_MANUFACTURER="Raspberry Pi"" "-DUSB_PRODUCT="Pico"" -march=armv6-m -mcpu=cortex-m0plus -mthumb -ffunction-sections -fdata-sections -fno-exceptions "-iprefixC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/" "@C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/lib/platform_inc.txt" -fno-rtti -std=gnu++17 -g -DSERIALUSB_PID=0x000a -DUSBD_MAX_POWER_MA=250 -DF_CPU=125000000L -DARDUINO=10819 -DARDUINO_RASPBERRY_PI_PICO "-DBOARD_NAME="RASPBERRY_PI_PICO"" -DARDUINO_ARCH_RP2040 -Os "-IC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0\cores\rp2040" "-IC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0\variants\rpipico" "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198\sketch\Arduino.ino.cpp" -o "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198\sketch\Arduino.ino.cpp.o"
Compiling libraries...
Compiling core...
Using precompiled core: C:\Users\sean_\AppData\Local\Temp\arduino_cache_639404\core\core_07333e4516baf75cbb11ee494af2233c.a
Linking everything together...
"C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-python3\1.0.1-base-3a57aed/python3" -I "C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/tools/simplesub.py" --input "C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/lib/memmap_default.ld" --out "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198/memmap_default.ld" --sub FLASH_LENGTH 2093056 --sub EEPROM_START 270528512 --sub FS_START 270528512 --sub FS_END 270528512 --sub RAM_LENGTH 256k
"C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-gcc\1.3.3-a-ed6d983/bin/arm-none-eabi-gcc" -Werror=return-type "-IC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/tools/libpico" -DCFG_TUSB_MCU=OPT_MCU_RP2040 -DUSB_VID=0x2e8a -DUSB_PID=0x000a "-DUSB_MANUFACTURER="Raspberry Pi"" "-DUSB_PRODUCT="Pico"" -march=armv6-m -mcpu=cortex-m0plus -mthumb -ffunction-sections -fdata-sections -fno-exceptions -Os -u printf_float -u scanf_float -c "C:\Users\sean\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/boot2/boot2_w25q080_2_padded_checksum.S" "-IC:\Users\sean\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/pico-sdk/src/rp2040/hardware_regs/include/" "-IC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/pico-sdk/src/common/pico_binary_info/include" -o "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198/boot2.o"
"C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-gcc\1.3.3-a-ed6d983/bin/arm-none-eabi-g++" "-LC:\Users\sean_\AppData\Local\Temp\arduino_build_298198" -Werror=return-type "-IC:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/tools/libpico" -DCFG_TUSB_MCU=OPT_MCU_RP2040 -DUSB_VID=0x2e8a -DUSB_PID=0x000a "-DUSB_MANUFACTURER="Raspberry Pi"" "-DUSB_PRODUCT="Pico"" -march=armv6-m -mcpu=cortex-m0plus -mthumb -ffunction-sections -fdata-sections -fno-exceptions -Os -u printf_float -u scanf_float "@C:\Users\sean\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/lib/platform_wrap.txt" -Wl,--cref -Wl,--check-sections -Wl,--gc-sections -Wl,--unresolved-symbols=report-all -Wl,--warn-common "-Wl,--script=C:\Users\sean\AppData\Local\Temp\arduino_build_298198/memmap_default.ld" "-Wl,-Map,C:\Users\sean_\AppData\Local\Temp\arduino_build_298198/Arduino.ino.map" -o "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198/Arduino.ino.elf" -Wl,--start-group "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198\sketch\Arduino.ino.cpp.o" "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198/..\arduino_cache_639404\core\core_07333e4516baf75cbb11ee494af2233c.a" "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198/boot2.o" "C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\hardware\rp2040\1.13.0/lib/libpico.a" -lm -lc -lstdc++ -lc -Wl,--end-group
"C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-elf2uf2\1.3.3-a-ed6d983/elf2uf2" "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198/Arduino.ino.elf" "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198/Arduino.ino.uf2"
"C:\Users\sean_\OneDrive\Documents\ArduinoData\packages\rp2040\tools\pqt-gcc\1.3.3-a-ed6d983/bin/arm-none-eabi-size" -A "C:\Users\sean_\AppData\Local\Temp\arduino_build_298198/Arduino.ino.elf"
Sketch uses 59032 bytes (2%) of program storage space. Maximum is 2093056 bytes.
Global variables use 11152 bytes (4%) of dynamic memory, leaving 250992 bytes for local variables. Maximum is 262144 bytes.
Error opening serial port 'COM3'. (Port busy)
Error opening serial port 'COM3'. (Port busy)
Error opening serial port 'COM3'. (Port busy)
Resetting COM3
Caught exception during reset!
Converting to uf2, output size: 131584, start address: 0x2000
No drive to deploy.
An error occurred while uploading the sketch
Code Used:
const int triggerPin=5; // Defining pin numbers
const int echoPin=4;
long period; // Defining variables
int distance;
void setup() {
pinMode (triggerPin,OUTPUT);
pinMode (echoPin,INPUT);
Serial.begin(9600);
}
void loop() {
digitalWrite(triggerPin,LOW);
delay(2);
digitalWrite(triggerPin,HIGH);
delay(10);
digitalWrite(triggerPin,LOW);
period = pulseIn(echoPin,HIGH);
distance = period*0.034/2;
Serial.print("Distance: ");
Serial.print(distance);
}
