ESP32: flash compiled firmware (.bin) – 1

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As for esp8266, an important feature of the ESP32 that simplifies the sharing of firmware (and It is used by most manufacturers) is to generate a pre-compiled binary file with only the sketch part (or filesystem).

ESP32: compiled binary (.hex) with command line
ESP32: compiled binary (.hex) with command line

You can compile the source code for your device, but you can generate a binary file for the filesystem, also.

Here some common esp32 device I use ESP32 Dev Kit v1 - TTGO T-Display 1.14 ESP32 - NodeMCU V3 V2 ESP8266 Lolin32 - NodeMCU ESP-32S - WeMos Lolin32 - WeMos Lolin32 mini - ESP32-CAM programmer - ESP32-CAM bundle - ESP32-WROOM-32 - ESP32-S

Add verbose output to Arduino IDE

To better understand all processes, we are going to enable verbose output on our Arduino IDE. You can find these options on File -> Preferences and check Show verbose output checks.

Arduino IDE enable show verbose ouput
Arduino IDE enables showing verbose output

Now we can grab and reuse the command from the console.

Generate binary file for ESP32

We are going to examine the console output of our Arduino IDE and try to understand the compiling and upload process.

C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\renzo\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\renzo\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\renzo\OneDrive\Documenti\Arduino\libraries -fqbn=esp32:esp32:esp32doit-devkit-v1:FlashFreq=80,UploadSpeed=921600,DebugLevel=none -vid-pid=10C4_EA60 -ide-version=10813 -build-path C:\Users\renzo\AppData\Local\Temp\arduino_build_887351 -warnings=all -build-cache C:\Users\renzo\AppData\Local\Temp\arduino_cache_251846 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.esptool_py.path=C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\3.0.0 -prefs=runtime.tools.esptool_py-3.0.0.path=C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\3.0.0 -prefs=runtime.tools.mkspiffs.path=C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\mkspiffs\0.2.3 -prefs=runtime.tools.mkspiffs-0.2.3.path=C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\mkspiffs\0.2.3 -prefs=runtime.tools.xtensa-esp32-elf-gcc.path=C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\1.22.0-97-gc752ad5-5.2.0 -prefs=runtime.tools.xtensa-esp32-elf-gcc-1.22.0-97-gc752ad5-5.2.0.path=C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\1.22.0-97-gc752ad5-5.2.0 -verbose D:\tmp\sketch_nov17a\Blink\Blink.ino
C:\Program Files (x86)\Arduino\arduino-builder -compile -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\renzo\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\renzo\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\renzo\OneDrive\Documenti\Arduino\libraries -fqbn=esp32:esp32:esp32doit-devkit-v1:FlashFreq=80,UploadSpeed=921600,DebugLevel=none -vid-pid=10C4_EA60 -ide-version=10813 -build-path C:\Users\renzo\AppData\Local\Temp\arduino_build_887351 -warnings=all -build-cache C:\Users\renzo\AppData\Local\Temp\arduino_cache_251846 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.esptool_py.path=C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\3.0.0 -prefs=runtime.tools.esptool_py-3.0.0.path=C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\3.0.0 -prefs=runtime.tools.mkspiffs.path=C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\mkspiffs\0.2.3 -prefs=runtime.tools.mkspiffs-0.2.3.path=C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\mkspiffs\0.2.3 -prefs=runtime.tools.xtensa-esp32-elf-gcc.path=C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\1.22.0-97-gc752ad5-5.2.0 -prefs=runtime.tools.xtensa-esp32-elf-gcc-1.22.0-97-gc752ad5-5.2.0.path=C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\1.22.0-97-gc752ad5-5.2.0 -verbose D:\tmp\sketch_nov17a\Blink\Blink.ino
Using board 'esp32doit-devkit-v1' from platform in folder: C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6
Using core 'esp32' from platform in folder: C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6
cmd /c if exist "D:\\tmp\\sketch_nov17a\\Blink\\partitions.csv" copy /y "D:\\tmp\\sketch_nov17a\\Blink\\partitions.csv" "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351\\partitions.csv"
cmd /c if not exist "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351\\partitions.csv" copy "C:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6\\tools\\partitions\\default.csv" "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351\\partitions.csv"
Detecting libraries used...
"C:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\xtensa-esp32-elf-gcc\\1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-g++" -DESP_PLATFORM "-DMBEDTLS_CONFIG_FILE=\"mbedtls/esp_config.h\"" -DHAVE_CONFIG_H -DGCC_NOT_5_2_0=0 -DWITH_POSIX "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/config" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/app_trace" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/app_update" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/asio" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/bootloader_support" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/bt" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/coap" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/console" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/driver" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/efuse" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp-tls" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp32" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_adc_cal" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_event" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_http_client" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_http_server" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_https_ota" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_https_server" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_ringbuf" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_websocket_client" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/espcoredump" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/ethernet" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/expat" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/fatfs" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/freemodbus" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/freertos" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/heap" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/idf_test" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/jsmn" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/json" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/libsodium" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/log" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/lwip" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/mbedtls" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/mdns" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/micro-ecc" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/mqtt" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/newlib" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/nghttp" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/nvs_flash" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/openssl" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/protobuf-c" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/protocomm" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/pthread" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/sdmmc" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/smartconfig_ack" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/soc" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/spi_flash" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/spiffs" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/tcp_transport" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/tcpip_adapter" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/ulp" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/unity" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/vfs" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/wear_levelling" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/wifi_provisioning" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/wpa_supplicant" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/xtensa-debug-module" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp-face" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp32-camera" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp-face" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/fb_gfx" -std=gnu++11 -Os -g3 -Wpointer-arith -fexceptions -fstack-protector -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -mlongcalls -nostdlib -w -Wno-error=maybe-uninitialized -Wno-error=unused-function -Wno-error=unused-but-set-variable -Wno-error=unused-variable -Wno-error=deprecated-declarations -Wno-unused-parameter -Wno-unused-but-set-parameter -Wno-missing-field-initializers -Wno-sign-compare -fno-rtti -c -w -x c++ -E -CC -DF_CPU=240000000L -DARDUINO=10813 -DARDUINO_ESP32_DEV -DARDUINO_ARCH_ESP32 "-DARDUINO_BOARD=\"ESP32_DEV\"" "-DARDUINO_VARIANT=\"doitESP32devkitV1\"" -DESP32 -DCORE_DEBUG_LEVEL=0 "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6\\cores\\esp32" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6\\variants\\doitESP32devkitV1" "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351\\sketch\\Blink.ino.cpp" -o nul -DARDUINO_LIB_DISCOVERY_PHASE
Generating function prototypes...
"C:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\xtensa-esp32-elf-gcc\\1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-g++" -DESP_PLATFORM "-DMBEDTLS_CONFIG_FILE=\"mbedtls/esp_config.h\"" -DHAVE_CONFIG_H -DGCC_NOT_5_2_0=0 -DWITH_POSIX "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/config" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/app_trace" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/app_update" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/asio" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/bootloader_support" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/bt" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/coap" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/console" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/driver" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/efuse" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp-tls" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp32" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_adc_cal" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_event" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_http_client" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_http_server" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_https_ota" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_https_server" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_ringbuf" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_websocket_client" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/espcoredump" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/ethernet" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/expat" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/fatfs" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/freemodbus" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/freertos" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/heap" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/idf_test" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/jsmn" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/json" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/libsodium" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/log" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/lwip" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/mbedtls" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/mdns" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/micro-ecc" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/mqtt" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/newlib" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/nghttp" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/nvs_flash" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/openssl" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/protobuf-c" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/protocomm" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/pthread" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/sdmmc" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/smartconfig_ack" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/soc" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/spi_flash" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/spiffs" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/tcp_transport" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/tcpip_adapter" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/ulp" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/unity" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/vfs" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/wear_levelling" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/wifi_provisioning" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/wpa_supplicant" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/xtensa-debug-module" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp-face" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp32-camera" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp-face" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/fb_gfx" -std=gnu++11 -Os -g3 -Wpointer-arith -fexceptions -fstack-protector -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -mlongcalls -nostdlib -w -Wno-error=maybe-uninitialized -Wno-error=unused-function -Wno-error=unused-but-set-variable -Wno-error=unused-variable -Wno-error=deprecated-declarations -Wno-unused-parameter -Wno-unused-but-set-parameter -Wno-missing-field-initializers -Wno-sign-compare -fno-rtti -c -w -x c++ -E -CC -DF_CPU=240000000L -DARDUINO=10813 -DARDUINO_ESP32_DEV -DARDUINO_ARCH_ESP32 "-DARDUINO_BOARD=\"ESP32_DEV\"" "-DARDUINO_VARIANT=\"doitESP32devkitV1\"" -DESP32 -DCORE_DEBUG_LEVEL=0 "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6\\cores\\esp32" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6\\variants\\doitESP32devkitV1" "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351\\sketch\\Blink.ino.cpp" -o "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351\\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\\renzo\\AppData\\Local\\Temp\\arduino_build_887351\\preproc\\ctags_target_for_gcc_minus_e.cpp"
Compiling sketch...
"C:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\xtensa-esp32-elf-gcc\\1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-g++" -DESP_PLATFORM "-DMBEDTLS_CONFIG_FILE=\"mbedtls/esp_config.h\"" -DHAVE_CONFIG_H -DGCC_NOT_5_2_0=0 -DWITH_POSIX "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/config" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/app_trace" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/app_update" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/asio" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/bootloader_support" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/bt" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/coap" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/console" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/driver" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/efuse" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp-tls" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp32" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_adc_cal" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_event" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_http_client" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_http_server" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_https_ota" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_https_server" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_ringbuf" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp_websocket_client" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/espcoredump" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/ethernet" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/expat" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/fatfs" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/freemodbus" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/freertos" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/heap" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/idf_test" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/jsmn" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/json" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/libsodium" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/log" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/lwip" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/mbedtls" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/mdns" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/micro-ecc" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/mqtt" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/newlib" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/nghttp" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/nvs_flash" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/openssl" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/protobuf-c" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/protocomm" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/pthread" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/sdmmc" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/smartconfig_ack" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/soc" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/spi_flash" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/spiffs" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/tcp_transport" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/tcpip_adapter" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/ulp" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/unity" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/vfs" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/wear_levelling" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/wifi_provisioning" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/wpa_supplicant" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/xtensa-debug-module" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp-face" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp32-camera" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/esp-face" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/include/fb_gfx" -std=gnu++11 -Os -g3 -Wpointer-arith -fexceptions -fstack-protector -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -mlongcalls -nostdlib -Wall -Werror=all -Wextra -Wno-error=maybe-uninitialized -Wno-error=unused-function -Wno-error=unused-but-set-variable -Wno-error=unused-variable -Wno-error=deprecated-declarations -Wno-unused-parameter -Wno-unused-but-set-parameter -Wno-missing-field-initializers -Wno-sign-compare -fno-rtti -MMD -c -DF_CPU=240000000L -DARDUINO=10813 -DARDUINO_ESP32_DEV -DARDUINO_ARCH_ESP32 "-DARDUINO_BOARD=\"ESP32_DEV\"" "-DARDUINO_VARIANT=\"doitESP32devkitV1\"" -DESP32 -DCORE_DEBUG_LEVEL=0 "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6\\cores\\esp32" "-IC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6\\variants\\doitESP32devkitV1" "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351\\sketch\\Blink.ino.cpp" -o "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351\\sketch\\Blink.ino.cpp.o"
Compiling libraries...
Compiling core...
Using precompiled core: C:\Users\renzo\AppData\Local\Temp\arduino_cache_251846\core\core_f14184deb5131144f4569f69c15fa3e5.a
Linking everything together...
"C:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\xtensa-esp32-elf-gcc\\1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-gcc" -nostdlib "-LC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/lib" "-LC:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/sdk/ld" -T esp32_out.ld -T esp32.project.ld -T esp32.rom.ld -T esp32.peripherals.ld -T esp32.rom.libgcc.ld -T esp32.rom.spiram_incompatible_fns.ld -u esp_app_desc -u ld_include_panic_highint_hdl -u call_user_start_cpu0 -Wl,--gc-sections -Wl,-static -Wl,--undefined=uxTopUsedPriority -u __cxa_guard_dummy -u __cxx_fatal_exception -Wl,--start-group "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351\\sketch\\Blink.ino.cpp.o" "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_cache_251846\\core\\core_f14184deb5131144f4569f69c15fa3e5.a" -lgcc -lesp_websocket_client -lwpa2 -ldetection -lesp_https_server -lwps -lhal -lconsole -lpe -lsoc -lsdmmc -lpthread -llog -lesp_http_client -ljson -lmesh -lesp32-camera -lnet80211 -lwpa_supplicant -lc -lmqtt -lcxx -lesp_https_ota -lulp -lefuse -lpp -lmdns -lbt -lwpa -lspiffs -lheap -limage_util -lunity -lrtc -lmbedtls -lface_recognition -lnghttp -ljsmn -lopenssl -lcore -lfatfs -lm -lprotocomm -lsmartconfig -lxtensa-debug-module -ldl -lesp_event -lesp-tls -lfd -lespcoredump -lesp_http_server -lfr -lsmartconfig_ack -lwear_levelling -ltcp_transport -llwip -lphy -lvfs -lcoap -lesp32 -llibsodium -lbootloader_support -ldriver -lcoexist -lasio -lod -lmicro-ecc -lesp_ringbuf -ldetection_cat_face -lapp_update -lespnow -lface_detection -lapp_trace -lnewlib -lbtdm_app -lwifi_provisioning -lfreertos -lfreemodbus -lethernet -lnvs_flash -lspi_flash -lc_nano -lexpat -lfb_gfx -lprotobuf-c -lesp_adc_cal -ltcpip_adapter -lstdc++ -Wl,--end-group -Wl,-EL -o "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351/Blink.ino.elf"
"C:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esptool_py\\3.0.0/esptool.exe" --chip esp32 elf2image --flash_mode dio --flash_freq 80m --flash_size 4MB -o "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351/Blink.ino.bin" "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351/Blink.ino.elf"
esptool.py v3.0-dev
"C:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6/tools/gen_esp32part.exe" -q "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351/partitions.csv" "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351/Blink.ino.partitions.bin"
"C:\\Users\\renzo\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\xtensa-esp32-elf-gcc\\1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-size" -A "C:\\Users\\renzo\\AppData\\Local\\Temp\\arduino_build_887351/Blink.ino.elf"
Sketch uses 198834 bytes (15%) of program storage space. Maximum is 1310720 bytes.
Global variables use 13248 bytes (4%) of dynamic memory, leaving 314432 bytes for local variables. Maximum is 327680 bytes.
C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\3.0.0/esptool.exe --chip esp32 --port COM26 --baud 921600 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0xe000 C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6/tools/partitions/boot_app0.bin 0x1000 C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6/tools/sdk/bin/bootloader_dio_80m.bin 0x10000 C:\Users\renzo\AppData\Local\Temp\arduino_build_887351/Blink.ino.bin 0x8000 C:\Users\renzo\AppData\Local\Temp\arduino_build_887351/Blink.ino.partitions.bin 
esptool.py v3.0-dev
Serial port COM26
Connecting....
Chip is ESP32-D0WDQ6 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
WARNING: Detected crystal freq 41.01MHz is quite different to normalized freq 40MHz. Unsupported crystal in use?
Crystal is 40MHz
MAC: 24:0a:c4:ec:0f:90
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 921600
Changed.
Configuring flash size...
Auto-detected Flash size: 4MB
Compressed 8192 bytes to 47...
Writing at 0x0000e000... (100 %)
Wrote 8192 bytes (47 compressed) at 0x0000e000 in 0.0 seconds (effective 6553.6 kbit/s)...
Hash of data verified.
Compressed 17120 bytes to 11164...
Writing at 0x00001000... (100 %)
Wrote 17120 bytes (11164 compressed) at 0x00001000 in 0.1 seconds (effective 992.5 kbit/s)...
Hash of data verified.
Compressed 198944 bytes to 102964...
Writing at 0x00010000... (14 %)
Writing at 0x00014000... (28 %)
Writing at 0x00018000... (42 %)
Writing at 0x0001c000... (57 %)
Writing at 0x00020000... (71 %)
Writing at 0x00024000... (85 %)
Writing at 0x00028000... (100 %)
Wrote 198944 bytes (102964 compressed) at 0x00010000 in 1.4 seconds (effective 1127.2 kbit/s)...
Hash of data verified.
Compressed 3072 bytes to 128...
Writing at 0x00008000... (100 %)
Wrote 3072 bytes (128 compressed) at 0x00008000 in 0.0 seconds (effective 1890.5 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...

From the console we can steal the upload command:

C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\3.0.0/esptool.exe --chip esp32 --port COM26 --baud 921600 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0xe000 C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6/tools/partitions/boot_app0.bin 0x1000 C:\Users\renzo\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6/tools/sdk/bin/bootloader_dio_80m.bin 0x10000 C:\Users\renzo\AppData\Local\Temp\arduino_build_887351/Blink.ino.bin 0x8000 C:\Users\renzo\AppData\Local\Temp\arduino_build_887351/Blink.ino.partitions.bin

esptool

First, we look that the core component of ESP32 core needs python installed, and when installing It remember to add to the path (for windows)

ESP Tools Install Python and add It to path
ESP Tools Install Python and add It to path

The command uses internal Arduino IDE esptool, but you can install only esptool.py for python with a simple command

pip install esptool

or you can download from here the compiled version, remember to add the executable to the path.

Then if you launch esptool on your cmd, you have this information

D:\Projects\Arduino\sloeber-workspace-OTA\keys>esptool
esptool.py v3.1
usage: esptool [-h]
               [--chip {auto,esp8266,esp32,esp32s2,esp32s3beta2,esp32s3beta3,esp32c3,esp32c6beta}]
               [--port PORT] [--baud BAUD]
               [--before {default_reset,usb_reset,no_reset,no_reset_no_sync}]
               [--after {hard_reset,soft_reset,no_reset,no_reset_stub}]
               [--no-stub] [--trace] [--override-vddsdio [{1.8V,1.9V,OFF}]]
               [--connect-attempts CONNECT_ATTEMPTS]
               {load_ram,dump_mem,read_mem,write_mem,write_flash,run,image_info,make_image,elf2image,read_mac,chip_id,flash_id,read_flash_status,write_flash_status,read_flash,verify_flash,erase_flash,erase_region,merge_bin,version,get_security_info}
               ...

esptool.py v3.1 - ESP8266 ROM Bootloader Utility

positional arguments:
  {load_ram,dump_mem,read_mem,write_mem,write_flash,run,image_info,make_image,elf2image,read_mac,chip_id,flash_id,read_flash_status,write_flash_status,read_flash,verify_flash,erase_flash,erase_region,merge_bin,version,get_security_info}
                        Run esptool {command} -h for additional help
    load_ram            Download an image to RAM and execute
    dump_mem            Dump arbitrary memory to disk
    read_mem            Read arbitrary memory location
    write_mem           Read-modify-write to arbitrary memory location
    write_flash         Write a binary blob to flash
    run                 Run application code in flash
    image_info          Dump headers from an application image
    make_image          Create an application image from binary files
    elf2image           Create an application image from ELF file
    read_mac            Read MAC address from OTP ROM
    chip_id             Read Chip ID from OTP ROM
    flash_id            Read SPI flash manufacturer and device ID
    read_flash_status   Read SPI flash status register
    write_flash_status  Write SPI flash status register
    read_flash          Read SPI flash content
    verify_flash        Verify a binary blob against flash
    erase_flash         Perform Chip Erase on SPI flash
    erase_region        Erase a region of the flash
    merge_bin           Merge multiple raw binary files into a single file for
                        later flashing
    version             Print esptool version
    get_security_info   Get some security-related data

optional arguments:
  -h, --help            show this help message and exit
  --chip {auto,esp8266,esp32,esp32s2,esp32s3beta2,esp32s3beta3,esp32c3,esp32c6beta}, -c {auto,esp8266,esp32,esp32s2,esp32s3beta2,esp32s3beta3,esp32c3,esp32c6beta}
                        Target chip type
  --port PORT, -p PORT  Serial port device
  --baud BAUD, -b BAUD  Serial port baud rate used when flashing/reading
  --before {default_reset,usb_reset,no_reset,no_reset_no_sync}
                        What to do before connecting to the chip
  --after {hard_reset,soft_reset,no_reset,no_reset_stub}, -a {hard_reset,soft_reset,no_reset,no_reset_stub}
                        What to do after esptool.py is finished
  --no-stub             Disable launching the flasher stub, only talk to ROM
                        bootloader. Some features will not be available.
  --trace, -t           Enable trace-level output of esptool.py interactions.
  --override-vddsdio [{1.8V,1.9V,OFF}]
                        Override ESP32 VDDSDIO internal voltage regulator (use
                        with care)
  --connect-attempts CONNECT_ATTEMPTS
                        Number of attempts to connect, negative or 0 for
                        infinite. Default: 7.

Command-line parameters

Now we can better understand the parameters of the command:

  • --chip esp32: here we are going to select the correct chip;
  • --port COM26: we set the port;
  • --baud 921600: here we have the transfer speed;
  • --before default_reset: pre-upload operation;
  • --after hard_reset: post-upload operation;
  • --flash_mode dio: set flash mode;
  • --flash_freq 80m: flash frequencies to 80Mhz;
  • --flash_size detect: detect the flash size automatically;
  • write_flash: write a binary blob to flash;
  • <address> <binary file>: write to address the file.

Understand all binary files

As we can see, there are a lot of binary files, and you need to upload all of them to have a consistent system:

0xe000 <tools>/partitions/boot_app0.bin

First stage bootloader: The hardwired ROM bootloader runs first. This first-stage bootloader is outside the Flash memory and cannot be programmed. It loads the second stage bootloader (see next step).

0x1000 <tools> /sdk/bin/bootloader_dio_80m.bin

Second stage bootloader: The first stage ROM-bootloader loads the second stage ESP-IDF Software bootloader at address 0x1000 in Flash. The code here is the bootloader_dio_80m.bin executable, which can be found in the components/bootloader directory of the ESP-IDF framework. This second stage bootloader reads the partition table found by default at offset 0x8000. If OTA app partitions are found in the partition table, the bootloader consults the ota_data partition to determine which one should be booted.

0x8000 <sketch>/Blink.ino.partitions.bin

The address of the partition table (by default 0x8000). It allows you to move the partition table, it gives more space for the bootloader. Note that partition offsets in the partition table CSV file may need to be changed if this value is set to a higher value. To have each partition offset adapt to the configured partition table offset, leave all partition offsets blank in the CSV file.

Not listed but default managed ota_data

Boot switch: the ota_data section can be considered as merely a switch, located at 0xe000 in Flash. It determines if either app0 or app1 should boot. The switch itself is the boot_app0.bin binary. As Juraj says, the 2kB size is also used to take notes during OTA flashing.

0x10000 <sketch>/Blink.ino.bin

The application at app0 or app1 executes.

Generate sketch binary file only

As for the Arduino HEX file, we can generate only the binary file. First, open your source code on your Arduino IDE, compile It to check errors, and then select Sketch -> Export compiled Binary,

esp8266 esp32 Arduino Export compiled binary IDE menu
esp8266 esp32 Arduino Export compiled binary IDE menu

then, by clicking on Sketch -> Show Sketch Folder, you can look at what happened.

We find a new file Blink.ino.doitESP32devkitV1.bin that is our compiled binary file, which can be used for OTA updates or to share precompiled firmware to simplify the flash process for other people.

But if you remember, in the upload we’ve looked at before, there were 4 files, not only one; this is because here you can find only the sketch binary file.

Thanks

  1. ESP32: pinout, specs and Arduino IDE configuration
  2. ESP32: integrated SPIFFS Filesystem
  3. ESP32: manage multiple Serial and logging
  4. ESP32 practical power saving
    1. ESP32 practical power saving: manage WiFi and CPU
    2. ESP32 practical power saving: modem and light sleep
    3. ESP32 practical power saving: deep sleep and hibernation
    4. ESP32 practical power saving: preserve data, timer and touch wake up
    5. ESP32 practical power saving: external and ULP wake up
    6. ESP32 practical power saving: UART and GPIO wake up
  5. ESP32: integrated LittleFS FileSystem
  6. ESP32: integrated FFat (Fat/exFAT) FileSystem
  7. ESP32-wroom-32
    1. ESP32-wroom-32: flash, pinout, specs and IDE configuration
  8. ESP32-CAM
    1. ESP32-CAM: pinout, specs and Arduino IDE configuration
    2. ESP32-CAM: upgrade CamerWebServer with flash features
  9. ESP32: use ethernet w5500 with plain (HTTP) and SSL (HTTPS)
  10. ESP32: use ethernet enc28j60 with plain (HTTP) and SSL (HTTPS)
  11. How to use SD card with esp32
  12. esp32 and esp8266: FAT filesystem on external SPI flash memory
  1. Firmware and OTA update management
    1. Firmware management
      1. ESP32: flash compiled firmware (.bin)
      2. ESP32: flash compiled firmware and filesystem (.bin) with GUI tools
    2. OTA update with Arduino IDE
      1. ESP32 OTA update with Arduino IDE: filesystem, firmware, and password
    3. OTA update with Web Browser
      1. ESP32 OTA update with Web Browser: firmware, filesystem, and authentication
      2. ESP32 OTA update with Web Browser: upload in HTTPS (SSL/TLS) with self-signed certificate
      3. ESP32 OTA update with Web Browser: custom web interface
    4. Self OTA uptate from HTTP server
      1. ESP32 self OTA update firmware from the server
      2. ESP32 self OTA update firmware from the server with version check
      3. ESP32 self-OTA update in HTTPS (SSL/TLS) with trusted self-signed certificate
    5. Non-standard Firmware update
      1. ESP32 firmware and filesystem update from SD card
      2. ESP32 firmware and filesystem update with FTP client
  1. Integrating LAN8720 with ESP32 for Ethernet Connectivity with plain (HTTP) and SSL (HTTPS)
  2. Connecting the EByte E70 to ESP32 c3/s3 devices and a simple sketch example
  3. ESP32-C3: pinout, specs and Arduino IDE configuration
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