Thx for sharing your work, must admit I’m quite puzzled...
I went through section1 quickly and the fundamentals are totally weird, eg not sure this is how I would describe what a Microcontroller is.
1.1 What is a Microcontroller?
It is this 28-pin programmable semiconductor chipof type number: ATmega328P.
We can build the following instruments using a Microcontroller:
(1) Taxi Meter,
(2) Prepaid Electrical Energy Meter, and
(3) Digital Weighing Machine, etc.
Basic tasks are not at Microcontroller level but really way above « basic » and when you start describing pins you go straight into
For example: Pin-5 is associated with four signals, and these are PCINT19, OC2B, INT1, and PD3.
==> Not sure who is the intended audience? what are pre-requisite to read this?
(i also more fundamentally disagree with a number of way you explain stuff - but I suppose that’s a personal value/choice.
Eg: your mixing of signal and pin, the notion or Port without discussing register, or in your table 1.12 the use of “boolean” as a type to describe INPUT, OUTPUT or INPUT_PULLUP or HIGH and LOW.. totally not the case, bool is a formal type of the programming language, the other constants are defined as integral numbers. Octal is not specific to the arduino platform, it’s part of the C/C++ language constant definition, etc...)