Hi everyone, I would like to share with the community an educational reflection on programming and microcontroller architecture. The Arduino ecosystem is extraordinary because it allows anyone to get a project up and running in minutes, thanks to the abstraction of C++. However, this high level of…

The way I see it "sbi" is a mnemonic. That makes the statement ASM that needs to be compiled. You just have a different compiler.

[image] herbschwarz: You just have a different compiler. "Exactly! The central focus should be the compiler + uploader tool, not ASM. The novelty is having a complete development tool running entirely on the web. Since this tool works with Assembly, I had to use ASM to turn on the LED. If it …

[image] UKHeliBob: which according to @costycnc is easier to understand that the standard way of programming an Atmega 328 How to blink a led with ASM is easier to learn than all it takes to completely know everything an Arduino Beginner should learn. Yeah. NO DUH!

[image] costycnc: you do not understand this topic Gone.

[image] costycnc: Open the browser, write sbi 5,5, compile, upload, and the LED is bright. Does that really turn on the LED ?

[image] herbschwarz: just have a different compiler I sense a confusion between assembler and compiler. An assembler translates instructions in assembly language to opcodes ('0's and '1's). Each instruction will result in one opcode. There are also directions for the behaviour of the assembl…

[image] stitech: I sense a confusion between assembler and compiler. An assembler translates instructions in assembly language to opcodes ('0's and '1's). Each instruction will result in one opcode. There are also directions for the behaviour of the assembler. A compiler can process statements…

I like being able to work without having to worry about an Internet connection.

There is a cloud based version of the Arduino IDE.

[Education] Demystifying Microcontrollers: Using ATmega328P and Assembly to Understand Registers

Projects General Guidance

costycnc July 15, 2026, 8:10pm 1088

sbi 5,5 yes, but faintly without sbi 4,5! How does Arduino actually turn on an LED? (The raw truth inside the chip)

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[Education] Demystifying Microcontrollers: Using ATmega328P and Assembly to Understand Registers

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