Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.

Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).

FFT implementation

Arduino

160

A
Adhu last edited by

Hello, I have doubt, I want to get the FFT of signals in arduino. I tried to use arduinofft library but have issues in plotting the frequencies present in my signal. any other methods?
1 Reply Last reply
Reply Quote 0
salmanfaris last edited by salmanfaris

Hi @Adhu ,

Can you specify the application ? also what was the issues when using the arduinofft lib?
A 1 Reply Last reply
Reply Quote 0
A
Adhu @salmanfaris last edited by

Hi @salmanfaris,
I want to nullify the effect of noise in PPG signal acquisition. But before that I tried a example code which is present in the arduinofft library in GitHub, to check whether it is working or not?. I got an FFT plot but I think it is wrong. I don't know how to use that library. I'm beginner, so can you help me out?
1 Reply Last reply
Reply Quote 0

Recent Posts

After reinstalling the portenta board file and restarting the computer, solved the problem.

• read more
Trying to run blink on portenta but getting the error?

error message:
Arduino: 1.8.13 (Windows 10), Board: "Arduino Portenta H7 (M7 core)" C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Faris\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Faris\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Faris\Documents\Arduino\libraries -fqbn=arduino:mbed:envie_m7 -vid-pid=2341_025B -ide-version=10813 -build-path C:\Users\Faris\AppData\Local\Temp\arduino_build_650727 -warnings=none -build-cache C:\Users\Faris\AppData\Local\Temp\arduino_cache_409352 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.arm-none-eabi-gcc.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\arm-none-eabi-gcc\7-2017q4 -prefs=runtime.tools.arm-none-eabi-gcc-7-2017q4.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\arm-none-eabi-gcc\7-2017q4 -prefs=runtime.tools.bossac.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\bossac\1.9.1-arduino2 -prefs=runtime.tools.bossac-1.9.1-arduino2.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\bossac\1.9.1-arduino2 -prefs=runtime.tools.openocd.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\openocd\0.10.0-arduino13 -prefs=runtime.tools.openocd-0.10.0-arduino13.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\openocd\0.10.0-arduino13 -prefs=runtime.tools.dfu-util.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\dfu-util\0.9.0-arduino2 -prefs=runtime.tools.dfu-util-0.9.0-arduino2.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\dfu-util\0.9.0-arduino2 -verbose C:\Users\Faris\AppData\Local\Temp\arduino_modified_sketch_49117\Blink.ino C:\Program Files (x86)\Arduino\arduino-builder -compile -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Faris\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Faris\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Faris\Documents\Arduino\libraries -fqbn=arduino:mbed:envie_m7 -vid-pid=2341_025B -ide-version=10813 -build-path C:\Users\Faris\AppData\Local\Temp\arduino_build_650727 -warnings=none -build-cache C:\Users\Faris\AppData\Local\Temp\arduino_cache_409352 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.arm-none-eabi-gcc.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\arm-none-eabi-gcc\7-2017q4 -prefs=runtime.tools.arm-none-eabi-gcc-7-2017q4.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\arm-none-eabi-gcc\7-2017q4 -prefs=runtime.tools.bossac.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\bossac\1.9.1-arduino2 -prefs=runtime.tools.bossac-1.9.1-arduino2.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\bossac\1.9.1-arduino2 -prefs=runtime.tools.openocd.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\openocd\0.10.0-arduino13 -prefs=runtime.tools.openocd-0.10.0-arduino13.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\openocd\0.10.0-arduino13 -prefs=runtime.tools.dfu-util.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\dfu-util\0.9.0-arduino2 -prefs=runtime.tools.dfu-util-0.9.0-arduino2.path=C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\dfu-util\0.9.0-arduino2 -verbose C:\Users\Faris\AppData\Local\Temp\arduino_modified_sketch_49117\Blink.ino Using board 'envie_m7' from platform in folder: C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\hardware\mbed\1.3.1 Using core 'arduino' from platform in folder: C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\hardware\mbed\1.3.1 Detecting libraries used... "C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\arm-none-eabi-gcc\\7-2017q4/bin/arm-none-eabi-g++" -c -w -g -Os -nostdlib "@C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7/defines.txt" "@C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7/cxxflags.txt" -mcpu=cortex-m7 -mfloat-abi=softfp -mfpu=fpv5-d16 -w -x c++ -E -CC -DARDUINO=10813 -DARDUINO_PORTENTA_H7_M7 -DARDUINO_ARCH_MBED -DARDUINO_LIBRARY_DISCOVERY_PHASE=0 "-IC:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\cores\\arduino" "-IC:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7" "-IC:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\cores\\arduino/api/deprecated" "-iprefixC:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\cores\\arduino" "@C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7/includes.txt" "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727\\sketch\\Blink.ino.cpp" -o nul -DARDUINO_LIB_DISCOVERY_PHASE Generating function prototypes... "C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\arm-none-eabi-gcc\\7-2017q4/bin/arm-none-eabi-g++" -c -w -g -Os -nostdlib "@C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7/defines.txt" "@C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7/cxxflags.txt" -mcpu=cortex-m7 -mfloat-abi=softfp -mfpu=fpv5-d16 -w -x c++ -E -CC -DARDUINO=10813 -DARDUINO_PORTENTA_H7_M7 -DARDUINO_ARCH_MBED -DARDUINO_LIBRARY_DISCOVERY_PHASE=0 "-IC:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\cores\\arduino" "-IC:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7" "-IC:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\cores\\arduino/api/deprecated" "-iprefixC:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\cores\\arduino" "@C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7/includes.txt" "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727\\sketch\\Blink.ino.cpp" -o "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727\\preproc\\ctags_target_for_gcc_minus_e.cpp" -DARDUINO_LIB_DISCOVERY_PHASE "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\\Faris\\AppData\\Local\\Temp\\arduino_build_650727\\preproc\\ctags_target_for_gcc_minus_e.cpp" Compiling sketch... "C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\arm-none-eabi-gcc\\7-2017q4/bin/arm-none-eabi-g++" -c -w -g -Os -nostdlib "@C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7/defines.txt" "@C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7/cxxflags.txt" -MMD -mcpu=cortex-m7 -mfloat-abi=softfp -mfpu=fpv5-d16 -DARDUINO=10813 -DARDUINO_PORTENTA_H7_M7 -DARDUINO_ARCH_MBED -DARDUINO_LIBRARY_DISCOVERY_PHASE=0 "-IC:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\cores\\arduino" "-IC:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7" "-IC:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\cores\\arduino/api/deprecated" "-iprefixC:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\cores\\arduino" "@C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7/includes.txt" "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727\\sketch\\Blink.ino.cpp" -o "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727\\sketch\\Blink.ino.cpp.o" Compiling libraries... Compiling core... Using previously compiled file: C:\Users\Faris\AppData\Local\Temp\arduino_build_650727\core\variant.cpp.o Using precompiled core: C:\Users\Faris\AppData\Local\Temp\arduino_cache_409352\core\core_arduino_mbed_envie_m7_e26c816eecbb9bfaaa432fd6b53eb31d.a Linking everything together... "C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\arm-none-eabi-gcc\\7-2017q4/bin/arm-none-eabi-g++" "-LC:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727" -Wl,--gc-sections -w -Wl,--as-needed "@C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7/ldflags.txt" "-TC:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7/linker_script.ld" "-Wl,-Map,C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727/Blink.ino.map" --specs=nosys.specs -o "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727/Blink.ino.elf" "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727\\sketch\\Blink.ino.cpp.o" "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727\\core\\variant.cpp.o" -Wl,--whole-archive "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727/..\\arduino_cache_409352\\core\\core_arduino_mbed_envie_m7_e26c816eecbb9bfaaa432fd6b53eb31d.a" "C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\mbed\\1.3.1\\variants\\PORTENTA_H7_M7/libs/libmbed.a" -Wl,--no-whole-archive -Wl,--start-group -lstdc++ -lsupc++ -lm -lc -lgcc -lnosys -Wl,--end-group "C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\arm-none-eabi-gcc\\7-2017q4/bin/arm-none-eabi-objcopy" -O binary "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727/Blink.ino.elf" "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727/Blink.ino.bin" "C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\arm-none-eabi-gcc\\7-2017q4/bin/arm-none-eabi-objcopy" -O ihex -R .eeprom "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727/Blink.ino.elf" "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727/Blink.ino.hex" "C:\\Users\\Faris\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\arm-none-eabi-gcc\\7-2017q4/bin/arm-none-eabi-size" -A "C:\\Users\\Faris\\AppData\\Local\\Temp\\arduino_build_650727/Blink.ino.elf" Sketch uses 130248 bytes (16%) of program storage space. Maximum is 786432 bytes. Global variables use 57280 bytes (10%) of dynamic memory, leaving 466344 bytes for local variables. Maximum is 523624 bytes. Forcing reset using 1200bps open/close on port COM12 PORTS {COM12, } / {} => {} PORTS {} / {} => {} PORTS {} / {COM13, } => {COM13, } Found upload port: COM13 C:\Users\Faris\AppData\Local\Arduino15\packages\arduino\tools\dfu-util\0.9.0-arduino2/dfu-util --device 0x2341:0x035b -D C:\Users\Faris\AppData\Local\Temp\arduino_build_650727/Blink.ino.bin -a0 --dfuse-address=0x08040000:leave dfu-util 0.9 Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc. Copyright 2010-2020 Tormod Volden and Stefan Schmidt This program is Free Software and has ABSOLUTELY NO WARRANTY Please report bugs to http://sourceforge.net/p/dfu-util/tickets/ Invalid DFU suffix signature A valid DFU suffix will be required in a future dfu-util release!!! Cannot open DFU device 2341:035b Cannot open DFU device 2341:035b No DFU capable USB device available An error occurred while uploading the sketch

• read more
Did anyone use Arduino Portenta H7 with Arduino IOT Cloud? It is listed on IOT Cloud Page but it's not supporting!

When I was trying to connect the board with the, it says The device found is not compatible

But it's listed in the supporting board page.

also mentioned in the portenta page .

https://www.arduino.cc/en/IoT/HomePage https://store.arduino.cc/usa/portenta-h7

• read more
. solved right?

• read more
R

@Richu-Bini sry guys its my fault i forget to put 'a' in int main (void) .... 2 days to find an 'a'

• read more

1 / 1