diff --git a/output_log.txt b/output_log.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4a0490d7827530c5d5a2f1e9cc49b21ec9ae7519
--- /dev/null
+++ b/output_log.txt
@@ -0,0 +1,121 @@
+Processing esp32_u2f (platform: espressif32; framework: arduino; board: esp32dev)
+--------------------------------------------------------------------------------
+Verbose mode can be enabled via `-v, --verbose` option
+CONFIGURATION: https://docs.platformio.org/page/boards/espressif32/esp32dev.html
+PLATFORM: Espressif 32 (5.1.0) > Espressif ESP32 Dev Module
+HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
+DEBUG: Current (cmsis-dap) External (cmsis-dap, esp-bridge, esp-prog, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa)
+PACKAGES: 
+ - framework-arduinoespressif32 @ 3.20004.220818 (2.0.4) 
+ - tool-esptoolpy @ 1.30300.0 (3.3.0) 
+ - toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch3
+LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
+LDF Modes: Finder ~ chain, Compatibility ~ soft
+Found 34 compatible libraries
+Scanning dependencies...
+Dependency Graph
+|-- Wire @ 2.0.0
+|-- DFRobot_DHT20 @ 1.0.0
+|   |-- Wire @ 2.0.0
+|-- Crypto @ 0.4.0+sha.4a6b190
+|-- EEPROM @ 2.0.0
+Building in release mode
+Compiling .pio\build\esp32_u2f\src\main.cpp.o
+src/main.cpp: In function 'void setup()':
+src/main.cpp:588:46: error: 'SIM_UIDH' was not declared in this scope
+     sprintf(U_ID, "%08lX %08lX %08lX %08lX", SIM_UIDH, SIM_UIDMH, SIM_UIDML,
+                                              ^~~~~~~~
+src/main.cpp:588:46: note: suggested alternative: 'SI_USER'
+     sprintf(U_ID, "%08lX %08lX %08lX %08lX", SIM_UIDH, SIM_UIDMH, SIM_UIDML,
+                                              ^~~~~~~~
+                                              SI_USER
+src/main.cpp:588:56: error: 'SIM_UIDMH' was not declared in this scope
+     sprintf(U_ID, "%08lX %08lX %08lX %08lX", SIM_UIDH, SIM_UIDMH, SIM_UIDML,
+                                                        ^~~~~~~~~
+src/main.cpp:588:67: error: 'SIM_UIDML' was not declared in this scope
+     sprintf(U_ID, "%08lX %08lX %08lX %08lX", SIM_UIDH, SIM_UIDMH, SIM_UIDML,
+                                                                   ^~~~~~~~~
+src/main.cpp:588:67: note: suggested alternative: 'SIG_DFL'
+     sprintf(U_ID, "%08lX %08lX %08lX %08lX", SIM_UIDH, SIM_UIDMH, SIM_UIDML,
+                                                                   ^~~~~~~~~
+                                                                   SIG_DFL
+src/main.cpp:589:9: error: 'SIM_UIDL' was not declared in this scope
+         SIM_UIDL);
+         ^~~~~~~~
+src/main.cpp:589:9: note: suggested alternative: 'SI_USER'
+         SIM_UIDL);
+         ^~~~~~~~
+         SI_USER
+src/main.cpp: In function 'int initResponse(byte*)':
+src/main.cpp:693:5: error: 'RawHID' was not declared in this scope
+     RawHID.send(resp_buffer, 100);
+     ^~~~~~
+src/main.cpp: In function 'void errorResponse(byte*, int)':
+src/main.cpp:710:5: error: 'RawHID' was not declared in this scope
+     RawHID.send(resp_buffer, 100);
+     ^~~~~~
+src/main.cpp: In function 'void respondErrorPDU(byte*, int)':
+src/main.cpp:733:5: error: 'RawHID' was not declared in this scope
+     RawHID.send(buffer, 100);
+     ^~~~~~
+src/main.cpp: In function 'void sendLargeResponse(byte*, int)':
+src/main.cpp:758:5: error: 'RawHID' was not declared in this scope
+     RawHID.send(resp_buffer, 100);
+     ^~~~~~
+src/main.cpp: In function 'void processMessage(byte*)':
+src/main.cpp:1147:9: error: 'RawHID' was not declared in this scope
+         RawHID.send(buffer, 100);
+         ^~~~~~
+src/main.cpp:1157:13: error: 'RawHID' was not declared in this scope
+             RawHID.send(buf, 100);
+             ^~~~~~
+src/main.cpp:1171:9: error: 'RawHID' was not declared in this scope
+         RawHID.send(buf, 100);
+         ^~~~~~
+src/main.cpp:1224:21: error: 'RawHID' was not declared in this scope
+                     RawHID.send(buf, 100);
+                     ^~~~~~
+src/main.cpp:1235:21: error: 'RawHID' was not declared in this scope
+                     RawHID.send(buf, 100);
+                     ^~~~~~
+src/main.cpp:1325:17: error: 'RawHID' was not declared in this scope
+                 RawHID.send(buf, 100);
+                 ^~~~~~
+src/main.cpp:1375:13: error: 'RawHID' was not declared in this scope
+             RawHID.send(buf, 100);
+             ^~~~~~
+src/main.cpp:1381:13: error: 'RawHID' was not declared in this scope
+             RawHID.send(buf, 100);
+             ^~~~~~
+src/main.cpp:1394:9: error: 'RawHID' was not declared in this scope
+         RawHID.send(hash_buffer, 100);
+         ^~~~~~
+src/main.cpp:1407:9: error: 'RawHID' was not declared in this scope
+         RawHID.send(buf, 100);
+         ^~~~~~
+src/main.cpp:1415:9: error: 'RawHID' was not declared in this scope
+         RawHID.send(buf, 100);
+         ^~~~~~
+src/main.cpp:1423:9: error: 'RawHID' was not declared in this scope
+         RawHID.send(buf, 100);
+         ^~~~~~
+src/main.cpp: In function 'void processPacket(byte*)':
+src/main.cpp:1451:13: error: 'RawHID' was not declared in this scope
+             RawHID.send(buffer, 100);
+             ^~~~~~
+src/main.cpp:1458:13: error: 'RawHID' was not declared in this scope
+             RawHID.send(buffer, 100);
+             ^~~~~~
+src/main.cpp: In function 'void authenticateKey()':
+src/main.cpp:1505:9: error: 'RawHID' was not declared in this scope
+     n = RawHID.recv(recv_buffer, 0); // 0 timeout = do not wait
+         ^~~~~~
+Compiling .pio\build\esp32_u2f\FrameworkArduino\base64.cpp.o
+Compiling .pio\build\esp32_u2f\FrameworkArduino\cbuf.cpp.o
+Compiling .pio\build\esp32_u2f\FrameworkArduino\esp32-hal-adc.c.o
+Compiling .pio\build\esp32_u2f\FrameworkArduino\esp32-hal-bt.c.o
+Compiling .pio\build\esp32_u2f\FrameworkArduino\esp32-hal-cpu.c.o
+Compiling .pio\build\esp32_u2f\FrameworkArduino\esp32-hal-dac.c.o
+Compiling .pio\build\esp32_u2f\FrameworkArduino\esp32-hal-gpio.c.o
+*** [.pio\build\esp32_u2f\src\main.cpp.o] Error 1
+========================== [FAILED] Took 5.44 seconds ==========================