update readme
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README.md
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README.md
@ -20,6 +20,14 @@ This is a very very basic parser, and so it will not work with a certain number
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* if you don't use the variable for the pin numbers
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* if you write 'digitalWrite()' on several lines
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* if you move the loop() opening bracket on the next line
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* if the main loop() call others functions
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* if you use arduino or c++ specific functions
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* ...
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# Debug Level
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There is a variable "DEBUG_LEVEL" in the ``src/pin_handler.h``, it allows you to give more or less output to the student.
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With a value of 1, it will print each code the student try.
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With a value of 2, it will do 1 and each time a digitalWrite is executed, it will print the wire change (1-4: row, 5-8: col) and the state to change.
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