Arduino library for creating hexdumps from program memory and view these on the serial monitor.
Initially designed for ESP8266, therefore uses printf() instead of standard Arduino print() and println() methods.
printf() is more flexible and more powerful but uses more memory which should be less of an issue on modern 32-bit microcontrollers.
For some microprocessor platforms / Arduino cores printf() needs to be explitly enabled. For others like ESP32 and ESP8266 this is default enabled.