1. I am using Arduino 1.8.1 & made a code in it. Board it Atemga2560 R3
2. I had made multiple .ino files in it & multiple headers in it. It has total 16 .ino files & 18 header files, where each .ino has its own header file plus two additional & from setup.ino rest all .ino file functions are called.
3. I know arduino is not meant for that, but i have experience in using multiple c files in other IDE. In this project I had to interface fingerprint sensor, so instead of writing new library I had used Adafruit library for that purpose, which is main reason for selection of arduino at first place, otherwise i have to write complete new library on a new microcontroller.
4. Code built was 674 bytes (8%) of dynamic memory & 22428 bytes (8%) of program storage space.
5. Upon build below is verbose generated. It has no error, but warning in two files: One is fingerprint library & other is eeprom library of internal arduino.
Fingerprint warning does not seem to be of much error & can be ignored but i dont understand these eeprom error.
Problem is in arduino on clicking error, it wont open that file.
Should i ignore these warnings? In general i prefer code with 0 error 0 warnings.
6. Also any GOOD reference library codes for fingerprint module to be written in c for any microcontroller.
2. I had made multiple .ino files in it & multiple headers in it. It has total 16 .ino files & 18 header files, where each .ino has its own header file plus two additional & from setup.ino rest all .ino file functions are called.
3. I know arduino is not meant for that, but i have experience in using multiple c files in other IDE. In this project I had to interface fingerprint sensor, so instead of writing new library I had used Adafruit library for that purpose, which is main reason for selection of arduino at first place, otherwise i have to write complete new library on a new microcontroller.
4. Code built was 674 bytes (8%) of dynamic memory & 22428 bytes (8%) of program storage space.
5. Upon build below is verbose generated. It has no error, but warning in two files: One is fingerprint library & other is eeprom library of internal arduino.
Fingerprint warning does not seem to be of much error & can be ignored but i dont understand these eeprom error.
Problem is in arduino on clicking error, it wont open that file.
Should i ignore these warnings? In general i prefer code with 0 error 0 warnings.
6. Also any GOOD reference library codes for fingerprint module to be written in c for any microcontroller.
Code:
"C:\Program Files\Arduino\hardware\tools\avr/bin/avr-g++" -c -g -Os -Wall -Wextra -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -flto -mmcu=atmega2560 -DF_CPU=16000000L -DARDUINO=10801 -DARDUINO_AVR_MEGA2560 -DARDUINO_ARCH_AVR "-IC:\Program Files\Arduino\hardware\arduino\avr\cores\arduino" "-IC:\Program Files\Arduino\hardware\arduino\avr\variants\mega" "-IC:\Users\abc\Documents\Arduino\libraries\TimerOne-master" "-IC:\Program Files\Arduino\libraries\LiquidCrystal\src" "-IC:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master" "-IC:\Program Files\Arduino\hardware\arduino\avr\libraries\SoftwareSerial\src" "-IC:\Program Files\Arduino\hardware\arduino\avr\libraries\EEPROM\src" "C:\Program Files\Arduino\libraries\LiquidCrystal\src\LiquidCrystal.cpp" -o "C:\Users\abc\AppData\Local\Temp\arduino_build_868020\libraries\LiquidCrystal\LiquidCrystal.cpp.o"
Compiling library "Adafruit-Fingerprint-Sensor-Library-master"
"C:\Program Files\Arduino\hardware\tools\avr/bin/avr-g++" -c -g -Os -Wall -Wextra -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -flto -mmcu=atmega2560 -DF_CPU=16000000L -DARDUINO=10801 -DARDUINO_AVR_MEGA2560 -DARDUINO_ARCH_AVR "-IC:\Program Files\Arduino\hardware\arduino\avr\cores\arduino" "-IC:\Program Files\Arduino\hardware\arduino\avr\variants\mega" "-IC:\Users\abc\Documents\Arduino\libraries\TimerOne-master" "-IC:\Program Files\Arduino\libraries\LiquidCrystal\src" "-IC:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master" "-IC:\Program Files\Arduino\hardware\arduino\avr\libraries\SoftwareSerial\src" "-IC:\Program Files\Arduino\hardware\arduino\avr\libraries\EEPROM\src" "C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp" -o "C:\Users\abc\AppData\Local\Temp\arduino_build_868020\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp.o"
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp: In member function 'boolean Adafruit_Fingerprint::verifyPassword()':
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp:58:36: warning: narrowing conversion of '(((Adafruit_Fingerprint*)this)->Adafruit_Fingerprint::thePassword >> 24)' from 'uint32_t {aka long unsigned int}' to 'uint8_t {aka unsigned char}' inside { } [-Wnarrowing]
(thePassword >> 24), (thePassword >> 16),
^
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp:58:57: warning: narrowing conversion of '(((Adafruit_Fingerprint*)this)->Adafruit_Fingerprint::thePassword >> 16)' from 'uint32_t {aka long unsigned int}' to 'uint8_t {aka unsigned char}' inside { } [-Wnarrowing]
(thePassword >> 24), (thePassword >> 16),
^
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp:59:36: warning: narrowing conversion of '(((Adafruit_Fingerprint*)this)->Adafruit_Fingerprint::thePassword >> 8)' from 'uint32_t {aka long unsigned int}' to 'uint8_t {aka unsigned char}' inside { } [-Wnarrowing]
(thePassword >> 8), thePassword};
^
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp:59:54: warning: narrowing conversion of '((Adafruit_Fingerprint*)this)->Adafruit_Fingerprint::thePassword' from 'uint32_t {aka long unsigned int}' to 'uint8_t {aka unsigned char}' inside { } [-Wnarrowing]
(thePassword >> 8), thePassword};
^
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp: In member function 'uint8_t Adafruit_Fingerprint::storeModel(uint16_t)':
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp:109:51: warning: narrowing conversion of '(id >> 8)' from 'uint16_t {aka unsigned int}' to 'uint8_t {aka unsigned char}' inside { } [-Wnarrowing]
uint8_t packet[] = {FINGERPRINT_STORE, 0x01, id >> 8, id & 0xFF};
^
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp:109:60: warning: narrowing conversion of '(id & 255u)' from 'uint16_t {aka unsigned int}' to 'uint8_t {aka unsigned char}' inside { } [-Wnarrowing]
uint8_t packet[] = {FINGERPRINT_STORE, 0x01, id >> 8, id & 0xFF};
^
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp: In member function 'uint8_t Adafruit_Fingerprint::loadModel(uint16_t)':
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp:120:52: warning: narrowing conversion of '(id >> 8)' from 'uint16_t {aka unsigned int}' to 'uint8_t {aka unsigned char}' inside { } [-Wnarrowing]
uint8_t packet[] = {FINGERPRINT_LOAD, 0x01, id >> 8, id & 0xFF};
^
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp:120:61: warning: narrowing conversion of '(id & 255u)' from 'uint16_t {aka unsigned int}' to 'uint8_t {aka unsigned char}' inside { } [-Wnarrowing]
uint8_t packet[] = {FINGERPRINT_LOAD, 0x01, id >> 8, id & 0xFF};
^
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp: In member function 'uint8_t Adafruit_Fingerprint::deleteModel(uint16_t)':
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp:141:48: warning: narrowing conversion of '(id >> 8)' from 'uint16_t {aka unsigned int}' to 'uint8_t {aka unsigned char}' inside { } [-Wnarrowing]
uint8_t packet[] = {FINGERPRINT_DELETE, id >> 8, id & 0xFF, 0x00, 0x01};
^
C:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master\Adafruit_Fingerprint.cpp:141:57: warning: narrowing conversion of '(id & 255u)' from 'uint16_t {aka unsigned int}' to 'uint8_t {aka unsigned char}' inside { } [-Wnarrowing]
uint8_t packet[] = {FINGERPRINT_DELETE, id >> 8, id & 0xFF, 0x00, 0x01};
^
Code:
"C:\Program Files\Arduino\tools-builder\ctags\5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "C:\Users\abc\AppData\Local\Temp\arduino_build_868020\preproc\ctags_target_for_gcc_minus_e.cpp"
Compiling sketch...
"C:\Program Files\Arduino\hardware\tools\avr/bin/avr-g++" -c -g -Os -Wall -Wextra -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -flto -mmcu=atmega2560 -DF_CPU=16000000L -DARDUINO=10801 -DARDUINO_AVR_MEGA2560 -DARDUINO_ARCH_AVR "-IC:\Program Files\Arduino\hardware\arduino\avr\cores\arduino" "-IC:\Program Files\Arduino\hardware\arduino\avr\variants\mega" "-IC:\Users\abc\Documents\Arduino\libraries\TimerOne-master" "-IC:\Program Files\Arduino\libraries\LiquidCrystal\src" "-IC:\Program Files\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master" "-IC:\Program Files\Arduino\hardware\arduino\avr\libraries\SoftwareSerial\src" "-IC:\Program Files\Arduino\hardware\arduino\avr\libraries\EEPROM\src" "C:\Users\abc\AppData\Local\Temp\arduino_build_868020\sketch\setup.ino.cpp" -o "C:\Users\abc\AppData\Local\Temp\arduino_build_868020\sketch\setup.ino.cpp.o"
In file included from C:\Users\abc\AppData\Local\Temp\arduino_build_868020\sketch\eeprom.h:12:0,
from C:\Users\abc\Desktop\V19_minor\setup\eeprom.ino:5:
C:\Program Files\Arduino\hardware\arduino\avr\libraries\EEPROM\src/EEPROM.h:43:30: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]
operator const uint8_t() const { return **this; }
^
C:\Program Files\Arduino\hardware\arduino\avr\libraries\EEPROM\src/EEPROM.h:92:26: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]
operator const int() const { return index; }
^