D3 & D4 was not declared

cantcode · February 9, 2023, 1:59am

Hello, I'm currently working on a project using nodemcu esp8266. When I tried to upload my code it says this:

Arduino: 1.8.19 (Windows 10), Board: "Generic ESP8266 Module, 80 MHz, Flash, Legacy (new can return nullptr), All SSL ciphers (most compatible), dtr (aka nodemcu), 26 MHz, 40MHz, DOUT (compatible), 1MB (FS:64KB OTA:~470KB), 2, nonos-sdk 2.2.1+100 (190703), v2 Lower Memory, Disabled, None, Only Sketch, 115200"

C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Qibbo\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Qibbo\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Qibbo\Documents\Arduino\libraries -fqbn=esp8266:esp8266:generic:xtal=80,vt=flash,exception=legacy,ssl=all,ResetMethod=nodemcu,CrystalFreq=26,FlashFreq=40,FlashMode=dout,eesz=1M64,led=2,sdk=nonosdk_190703,ip=lm2f,dbg=Disabled,lvl=None____,wipe=none,baud=115200 -vid-pid=1A86_7523 -ide-version=10819 -build-path C:\Users\Qibbo\AppData\Local\Temp\arduino_build_329469 -warnings=none -build-cache C:\Users\Qibbo\AppData\Local\Temp\arduino_cache_196082 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.mkspiffs.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\2.5.0-4-b40a506 -prefs=runtime.tools.mkspiffs-2.5.0-4-b40a506.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\2.5.0-4-b40a506 -prefs=runtime.tools.xtensa-lx106-elf-gcc.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\2.5.0-4-b40a506 -prefs=runtime.tools.xtensa-lx106-elf-gcc-2.5.0-4-b40a506.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\2.5.0-4-b40a506 -prefs=runtime.tools.python3.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\python3\3.7.2-post1 -prefs=runtime.tools.python3-3.7.2-post1.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\python3\3.7.2-post1 -prefs=runtime.tools.mklittlefs.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\mklittlefs\2.5.0-4-69bd9e6 -prefs=runtime.tools.mklittlefs-2.5.0-4-69bd9e6.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\mklittlefs\2.5.0-4-69bd9e6 -verbose C:\Users\Qibbo\Desktop\PTA\write_data\write_data.ino

C:\Program Files (x86)\Arduino\arduino-builder -compile -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Qibbo\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Qibbo\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Qibbo\Documents\Arduino\libraries -fqbn=esp8266:esp8266:generic:xtal=80,vt=flash,exception=legacy,ssl=all,ResetMethod=nodemcu,CrystalFreq=26,FlashFreq=40,FlashMode=dout,eesz=1M64,led=2,sdk=nonosdk_190703,ip=lm2f,dbg=Disabled,lvl=None____,wipe=none,baud=115200 -vid-pid=1A86_7523 -ide-version=10819 -build-path C:\Users\Qibbo\AppData\Local\Temp\arduino_build_329469 -warnings=none -build-cache C:\Users\Qibbo\AppData\Local\Temp\arduino_cache_196082 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.mkspiffs.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\2.5.0-4-b40a506 -prefs=runtime.tools.mkspiffs-2.5.0-4-b40a506.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\2.5.0-4-b40a506 -prefs=runtime.tools.xtensa-lx106-elf-gcc.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\2.5.0-4-b40a506 -prefs=runtime.tools.xtensa-lx106-elf-gcc-2.5.0-4-b40a506.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\2.5.0-4-b40a506 -prefs=runtime.tools.python3.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\python3\3.7.2-post1 -prefs=runtime.tools.python3-3.7.2-post1.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\python3\3.7.2-post1 -prefs=runtime.tools.mklittlefs.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\mklittlefs\2.5.0-4-69bd9e6 -prefs=runtime.tools.mklittlefs-2.5.0-4-69bd9e6.path=C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\tools\mklittlefs\2.5.0-4-69bd9e6 -verbose C:\Users\Qibbo\Desktop\PTA\write_data\write_data.ino

Using board 'generic' from platform in folder: C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.3

Using core 'esp8266' from platform in folder: C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.3

Detecting libraries used...

"C:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\2.5.0-4-b40a506/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/lwip2/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++11 -ffunction-sections -fdata-sections -fno-exceptions -w -x c++ -E -CC -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10819 -DARDUINO_ESP8266_GENERIC -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_GENERIC\"" -DLED_BUILTIN=2 -DFLASHMODE_DOUT -DESP8266 "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\cores\\esp8266" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\variants\\generic" "C:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469\\sketch\\write_data.ino.cpp" -o nul

Alternatives for SPI.h: [SPI@1.0]

ResolveLibrary(SPI.h)

  -> candidates: [SPI@1.0]

"C:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\2.5.0-4-b40a506/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/lwip2/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++11 -ffunction-sections -fdata-sections -fno-exceptions -w -x c++ -E -CC -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10819 -DARDUINO_ESP8266_GENERIC -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_GENERIC\"" -DLED_BUILTIN=2 -DFLASHMODE_DOUT -DESP8266 "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\cores\\esp8266" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\variants\\generic" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\libraries\\SPI" "C:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469\\sketch\\write_data.ino.cpp" -o nul

Alternatives for MFRC522.h: [MFRC522@1.4.10]

ResolveLibrary(MFRC522.h)

  -> candidates: [MFRC522@1.4.10]

"C:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\2.5.0-4-b40a506/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/lwip2/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++11 -ffunction-sections -fdata-sections -fno-exceptions -w -x c++ -E -CC -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10819 -DARDUINO_ESP8266_GENERIC -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_GENERIC\"" -DLED_BUILTIN=2 -DFLASHMODE_DOUT -DESP8266 "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\cores\\esp8266" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\variants\\generic" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\libraries\\SPI" "-IC:\\Users\\Qibbo\\Documents\\Arduino\\libraries\\MFRC522\\src" "C:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469\\sketch\\write_data.ino.cpp" -o nul

"C:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\2.5.0-4-b40a506/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/lwip2/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++11 -ffunction-sections -fdata-sections -fno-exceptions -w -x c++ -E -CC -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10819 -DARDUINO_ESP8266_GENERIC -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_GENERIC\"" -DLED_BUILTIN=2 -DFLASHMODE_DOUT -DESP8266 "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\cores\\esp8266" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\variants\\generic" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\libraries\\SPI" "-IC:\\Users\\Qibbo\\Documents\\Arduino\\libraries\\MFRC522\\src" "C:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\libraries\\SPI\\SPI.cpp" -o nul

"C:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\2.5.0-4-b40a506/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/lwip2/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++11 -ffunction-sections -fdata-sections -fno-exceptions -w -x c++ -E -CC -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10819 -DARDUINO_ESP8266_GENERIC -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_GENERIC\"" -DLED_BUILTIN=2 -DFLASHMODE_DOUT -DESP8266 "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\cores\\esp8266" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\variants\\generic" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\libraries\\SPI" "-IC:\\Users\\Qibbo\\Documents\\Arduino\\libraries\\MFRC522\\src" "C:\\Users\\Qibbo\\Documents\\Arduino\\libraries\\MFRC522\\src\\MFRC522.cpp" -o nul

"C:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\2.5.0-4-b40a506/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/lwip2/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++11 -ffunction-sections -fdata-sections -fno-exceptions -w -x c++ -E -CC -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10819 -DARDUINO_ESP8266_GENERIC -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_GENERIC\"" -DLED_BUILTIN=2 -DFLASHMODE_DOUT -DESP8266 "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\cores\\esp8266" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\variants\\generic" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\libraries\\SPI" "-IC:\\Users\\Qibbo\\Documents\\Arduino\\libraries\\MFRC522\\src" "C:\\Users\\Qibbo\\Documents\\Arduino\\libraries\\MFRC522\\src\\MFRC522Extended.cpp" -o nul

Generating function prototypes...

"C:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\2.5.0-4-b40a506/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/lwip2/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++11 -ffunction-sections -fdata-sections -fno-exceptions -w -x c++ -E -CC -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10819 -DARDUINO_ESP8266_GENERIC -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_GENERIC\"" -DLED_BUILTIN=2 -DFLASHMODE_DOUT -DESP8266 "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\cores\\esp8266" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\variants\\generic" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\libraries\\SPI" "-IC:\\Users\\Qibbo\\Documents\\Arduino\\libraries\\MFRC522\\src" "C:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469\\sketch\\write_data.ino.cpp" -o "C:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469\\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\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469\\preproc\\ctags_target_for_gcc_minus_e.cpp"

Compiling sketch...

"C:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\python3\\3.7.2-post1/python3" "C:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/signing.py" --mode header --publickey "C:\\Users\\Qibbo\\Desktop\\PTA\\write_data/public.key" --out "C:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469/core/Updater_Signing.h"

"C:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\2.5.0-4-b40a506/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/lwip2/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++11 -MMD -ffunction-sections -fdata-sections -fno-exceptions -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10819 -DARDUINO_ESP8266_GENERIC -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_GENERIC\"" -DLED_BUILTIN=2 -DFLASHMODE_DOUT -DESP8266 "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\cores\\esp8266" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\variants\\generic" "-IC:\\Users\\Qibbo\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.3\\libraries\\SPI" "-IC:\\Users\\Qibbo\\Documents\\Arduino\\libraries\\MFRC522\\src" "C:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469\\sketch\\write_data.ino.cpp" -o "C:\\Users\\Qibbo\\AppData\\Local\\Temp\\arduino_build_329469\\sketch\\write_data.ino.cpp.o"

write_data:20:25: error: 'D3' was not declared in this scope

 const uint8_t RST_PIN = D3;

                         ^

write_data:21:24: error: 'D4' was not declared in this scope

 const uint8_t SS_PIN = D4;

                        ^

Using library SPI at version 1.0 in folder: C:\Users\Qibbo\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.3\libraries\SPI 

Using library MFRC522 at version 1.4.10 in folder: C:\Users\Qibbo\Documents\Arduino\libraries\MFRC522 

exit status 1

'D3' was not declared in this scope

Please help

jremington · February 9, 2023, 2:01am

Post the code, using code tags.

LarryD · February 9, 2023, 2:02am

These are not defined for the Esp32: D3 D4

Use pin numbers only

cantcode · February 9, 2023, 2:18am

/* ------------------------------------------------------------------------
 * Created by: Tauseef Ahmad
 * Created on: 4 April, 2022
 *  
 * Tutorial: https://youtu.be/M9Sci4nsTEk
 * ------------------------------------------------------------------------
 * Download Resources
 * ------------------------------------------------------------------------
 * Preferences--> Aditional boards Manager URLs : 
 * For ESP8266 and NodeMCU - Version 3.0.2
 * http://arduino.esp8266.com/stable/package_esp8266com_index.json
 * ------------------------------------------------------------------------*/


#include <SPI.h>
#include <MFRC522.h>
//--------------------------------------------------
//GPIO 0 --> D3
//GPIO 2 --> D4
const uint8_t RST_PIN = D3;
const uint8_t SS_PIN = D4;
//--------------------------------------------------
MFRC522 mfrc522(SS_PIN, RST_PIN);
MFRC522::MIFARE_Key key;        
//--------------------------------------------------
/* Be aware of Sector Trailer Blocks */
int blockNum = 4;
byte block_data[16];
/* Create array to read data from Block */
/* Length of buffer should be 4 Bytes 
more than the size of Block (16 Bytes) */
byte bufferLen = 18;
byte readBlockData[18];
//--------------------------------------------------
MFRC522::StatusCode status;
//--------------------------------------------------



void setup() 
{
  //------------------------------------------------------
  //Initialize serial communications with PC
  Serial.begin(9600);
  //------------------------------------------------------
  //Initialize SPI bus
  SPI.begin();
  //------------------------------------------------------
  //Initialize MFRC522 Module
  mfrc522.PCD_Init();
  Serial.println("Scan a MIFARE 1K Tag to write data...");
  //------------------------------------------------------
}



/****************************************************************************************************
 * loop() function
 ****************************************************************************************************/
void loop()
{
  //------------------------------------------------------------------------------
  /* Prepare the ksy for authentication */
  /* All keys are set to FFFFFFFFFFFFh at chip delivery from the factory */
  for (byte i = 0; i < 6; i++){
    key.keyByte[i] = 0xFF;
  }
  //------------------------------------------------------------------------------
  /* Look for new cards */
  /* Reset the loop if no new card is present on RC522 Reader */
  if ( ! mfrc522.PICC_IsNewCardPresent()){return;}
  //------------------------------------------------------------------------------
  /* Select one of the cards */
  if ( ! mfrc522.PICC_ReadCardSerial()) {return;}
  //------------------------------------------------------------------------------
  Serial.print("\n");
  Serial.println("**Card Detected**");
  /* Print UID of the Card */
  Serial.print(F("Card UID:"));
  for (byte i = 0; i < mfrc522.uid.size; i++){
    Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
    Serial.print(mfrc522.uid.uidByte[i], HEX);
  }
  Serial.print("\n");
  /* Print type of card (for example, MIFARE 1K) */
  Serial.print(F("PICC type: "));
  MFRC522::PICC_Type piccType = mfrc522.PICC_GetType(mfrc522.uid.sak);
  Serial.println(mfrc522.PICC_GetTypeName(piccType));
    
  //------------------------------------------------------------------------------
  //MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
  blockNum = 4;
  toBlockDataArray("002"); //Student ID
  WriteDataToBlock(blockNum, block_data);
  ReadDataFromBlock(blockNum, readBlockData);
  dumpSerial(blockNum, readBlockData);
  //MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
  //MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
  blockNum = 5;
  toBlockDataArray("David"); //First Name
  WriteDataToBlock(blockNum, block_data);
  ReadDataFromBlock(blockNum, readBlockData);
  dumpSerial(blockNum, readBlockData);
  //MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
  //MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
  blockNum = 6;
  toBlockDataArray("Anthony"); //Last Name
  WriteDataToBlock(blockNum, block_data);
  ReadDataFromBlock(blockNum, readBlockData);
  dumpSerial(blockNum, readBlockData);
  //MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
  //MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
  blockNum = 8;
  toBlockDataArray("Jhon Abrahum"); //Father's Name
  WriteDataToBlock(blockNum, block_data);
  ReadDataFromBlock(blockNum, readBlockData);
  dumpSerial(blockNum, readBlockData);
  //MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
  //MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
  blockNum = 9;
  toBlockDataArray("28-09-1989"); //Date of Birth
  WriteDataToBlock(blockNum, block_data);
  ReadDataFromBlock(blockNum, readBlockData);
  dumpSerial(blockNum, readBlockData);
  //MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
  //MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
  blockNum = 10;
  toBlockDataArray("+923004447777"); //Phone Number
  WriteDataToBlock(blockNum, block_data);
  ReadDataFromBlock(blockNum, readBlockData);
  dumpSerial(blockNum, readBlockData);
  //MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
}



/****************************************************************************************************
 * Writ() function
 ****************************************************************************************************/
void WriteDataToBlock(int blockNum, byte blockData[]) 
{
   Serial.print("Writing data on block ");
   Serial.print(blockNum);
  //------------------------------------------------------------------------------
  /* Authenticating the desired data block for write access using Key A */
  status = mfrc522.PCD_Authenticate(MFRC522::PICC_CMD_MF_AUTH_KEY_A, blockNum, &key, &(mfrc522.uid));
  if (status != MFRC522::STATUS_OK){
    Serial.print("Authentication failed for Write: ");
    Serial.println(mfrc522.GetStatusCodeName(status));
    return;
  }
  //------------------------------------------------------------------------------
  else {
    Serial.println("Authentication success");
  }
  //------------------------------------------------------------------------------
  /* Write data to the block */
  status = mfrc522.MIFARE_Write(blockNum, blockData, 16);
  if (status != MFRC522::STATUS_OK) {
    Serial.print("Writing to Block failed: ");
    Serial.println(mfrc522.GetStatusCodeName(status));
    return;
  }
  else
  {Serial.println("Data was written into Block successfully");}
  //------------------------------------------------------------------------------
}





/****************************************************************************************************
 * ReadDataFromBlock() function
 ****************************************************************************************************/
void ReadDataFromBlock(int blockNum, byte readBlockData[]) 
{
   Serial.print("Reading data from block ");
   Serial.println(blockNum);
  //------------------------------------------------------------------------------
  /* Authenticating the desired data block for Read access using Key A */
  status = mfrc522.PCD_Authenticate(MFRC522::PICC_CMD_MF_AUTH_KEY_A, blockNum, &key, &(mfrc522.uid));
  //------------------------------------------------------------------------------
  if (status != MFRC522::STATUS_OK){
   Serial.print("Authentication failed for Read: ");
   Serial.println(mfrc522.GetStatusCodeName(status));
   return;
  }
  else {
    Serial.println("Authentication success");
  }
  //------------------------------------------------------------------------------
  /* Reading data from the Block */
  status = mfrc522.MIFARE_Read(blockNum, readBlockData, &bufferLen);
  if (status != MFRC522::STATUS_OK){
    Serial.print("Reading failed: ");
    Serial.println(mfrc522.GetStatusCodeName(status));
    return;
  }
  else {
    Serial.println("Block was read successfully");  
  }
  //------------------------------------------------------------------------------
}



/****************************************************************************************************
 * dumpSerial() function
 ****************************************************************************************************/
void dumpSerial(int blockNum, byte blockData[]) 
{
   Serial.print("\n");
   Serial.print("Data in Block:");
   Serial.print(blockNum);
   Serial.print(" --> ");
   for (int j=0 ; j<16 ; j++){
     Serial.write(readBlockData[j]);
   }
   Serial.print("\n");Serial.print("\n");
}


/****************************************************************************************************
 * dumpSerial() function
 ****************************************************************************************************/
void toBlockDataArray(String str) 
{
  byte len = str.length();
  if(len > 16) len = 16;
  for (byte i = 0; i < len; i++) block_data[i] = str[i];
  for (byte i = len; i < 16; i++) block_data[i] = ' ';
}

jremington · February 9, 2023, 2:24am

That is for the ESP8266. You may have to make several changes to get it to work with ESP32.

cantcode · February 9, 2023, 2:25am

but im using esp 8266

jremington · February 9, 2023, 2:26am

Then define D3 and D4 to be something sensible, or just replace them with the appropriate pin numbers. Look at your setup to see what RST_PIN and SS_PIN should be.

const uint8_t RST_PIN = D3;
const uint8_t SS_PIN = D4;

You haven't posted any details about your project.

cantcode · February 9, 2023, 2:40am

my bad, im trying to do this

jremington · February 9, 2023, 2:42am

No one is going to watch a video, in order to figure out what you are trying to do, especially since it is clear that whatever that is, you are making serious mistakes.

For informed help, please read and follow the instructions in the "How to get the best out of this forum" post.

cantcode · February 9, 2023, 3:06am

im trying to make an attendance system using rfid, esp8266 and google sheets. I know nothing about coding and this is my first ever project. I really don't know what's wrong because I only follow the instructions from the video.

jremington · February 9, 2023, 3:28am

That is the problem. This is a highly technical hobby, and you have to learn the basics before launching into an advanced project like this. You are not going to learn those basics by watching one video.

Arduino put great effort into creating simple instructional projects like blink an LED, measure a voltage, a temperature, control a motor, play music on a buzzer, and they are built right into the IDE: Files>Examples> ...

Then there are countless beginner tutorials on line. Do yourself a favor, start small and work your way up. Don't forget you need to learn the C/C++ programming language too!

ZX80 · February 9, 2023, 3:35am

If you have a nodemcu, then this is the board you should select, not "Generic ESP8266 Module".

cantcode · February 9, 2023, 6:55am

thank you! It is working fine now. My bad i didnt see it the first time

system · August 8, 2023, 6:55am

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.

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D3 & D4 was not declared

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