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Welcome to the world of microcontroller programming.

As we go about our everyday lives, we usually have little knowledge of the world of electronic devices around us that not only do work for us, but also manage and control our lives.

There are billions and billions of these devices, and their 'brains' are usually electronic computer chips called microcontrollers.

We call these 'embedded systems'

Embedded means, the microcontroller is hidden inside something e.g. cars, washing machines, fridges, robots, toys, industrial machines, traffic lights, motorcycles, etc, etc, etc.

System means, the microcontroller and the rest of the device work together

The way the system works is determined by the algorithm - the designers plan and its translation into a computer program or code.

The aim of this course is to help you begin to see the world in a slightly different way, so that when you look at a device you realize it has an electronic embedded system, and you can imagine in your mind the microcontroller, and the algorithm it is running.

Using the Arduino application on your PC, you will begin with learning to write code for the ESP32 microcontroller, while being introduced to some principles of coding.

Your learning:

⭐ recognize program code syntax (structure) and follow it

⭐ understand the basic concepts of sequence, selection & iteration and how they are put together in an algorithm

⭐ begin to think like a programmer (logically breaking down problems into smaller and smaller parts)

⭐ write simple code that does stuff

⭐ develop 'transparent' (comprehensible) coding practices

⭐develop a working mental picture of a microcontroller-based embedded system

⭐ understand the embedded system as an automaton (how microcontrollers can work without a human in control)

😃 build something, and have some fun while you are learning 😃

To help you build these circuits check out this wish list on Aliexpress https://my.aliexpress.com/wishlist/shared.htm?groupId=100000012486878

The ESP32 was chosen as it is an inexpensive, modern, powerful, high speed microcontroller with integrated Bluetooth and WiFi.

Question	Content	You have attempted it	You got it fully correct	Course Progress
Question	Content	You have attempted it	You got it fully correct	Course Progress

Instructions
Devices
Reg's
Var's

Block Diagram
State Machine
about System Designer JS

PLEASE WAIT FOR EVERYTHING TO LOAD - Note you need to be using Firefox or Chrome to run program code

State Machine designer

System Designer JS by Bill Collis

This program was designed to help learners who are new to microcontroller based embedded systems

The Block Diagram Editor

Drag and drop I/O devices onto the block diagram

Link them to the microcontroller

As you do the program code will automatically be generated to match the I/O device and its connection to the microcontroller pins

The Code Window

Code can be run or stepped through line by line

The slider changes the speed of the run

T changes Theme and F changes Font size

The State Machine Editor

Click and drag to draw new states

Right click to add actions to states

Click and drag inside a state to draw transistions between states

Add conditions inside [] to transisitions by double clicking to edit or right click e.g. [IS_SW_LOW]

Add actions to transitions in the form [conditon]/action e.g. [IS_SW_LOW]/CLR_LED; _delay_ms(DEL);

There is no undo so be careful

You cannot directly open or save files to your local file system (this is blocked in browsers)

However, when you press export, copy the text from the textarea below into a text file, and save that

and, when you press import you can copy text data into the textarea below and import it

Code

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