How do you shrink your Arduino code to make it smaller and faster? With registers! This video explains why you would ever want to write --. To learn how to program your Arduino with registers, check out my Tinkercad Circuits + Arduino playlist:    • Tinkercad Circuits + Arduino Tutorials  . Also check out this great video by Shawn Hymel:    • Level Up Your Arduino Code: Registers  

For some interesting discussion and debate about the merits of doing this, see the following Reddit threads:

  / optimize_your_arduino_code_with_registers  

  / arduino_libraries_vs_directly_writing_regi...  

  / arduino_libraries_vs_directly_writing_to  
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  / benfinio