Arduino fast intro
- 1 Arduino Uno
- 1.1 Overview
- 1.2 First things first, Blink it
- 1.3 Let's add a trough hole led
- 1.4 Controlling Outputs
Hello everyone hello hello hello,
now what is an Arduino ...well...find a detailed introduction here []
Computer and processor are generic terms for the anything that can run a program, basically.
Controller or microcontroller usually refers to a simple processor that does only one task, like listening to sensors. In explaining microcontrollers, we’ll distinguish them from computers, which contain more powerful processors that can run an operating system.
Arduino is an open source physical computing platform based on a simple input/output (I/O) board and a development environment that implements the Processing language. Arduino can be used to develop standalone interactive objects or can be connected to software on your computer.
The Arduino contains a microcontroller.
Most electronic devices today have a microcontroller at their core. Microcontrollers are optimized for control of general input and output. What Is Physical Computing? Physical Computing uses electronics to prototype new materials for ( in our case ) designers and artists.
Arduino is composed of two major parts: the Arduino board, which is the piece of hardware you work on when you build your objects; and the Arduino IDE, the piece of software you run on your computer. You use the IDE to create a sketch (a little computer program) that you upload to the Arduino board. The sketch tells the board what to do.
In the meantime, HERE you can find ANYTHING about Arduino, including download the software
The pins on your Arduino are the places where you connect wires to construct a circuit (probably in conjunction with a breadboard and some wire. They usually have black plastic ‘headers’ that allow you to just plug a wire right into the board. The Arduino has several different kinds of pins, each of which is labeled on the board and used for different functions.
we start by figuring put if our Arduino is all good or it is somehow damaged ...it is a basic test to check and run a simple script at the same time.
so we have something like this
GOOOD! lets dissect this
- commenting / one line and multiple lines
Lets compile this
Lets upload this
And we should have a Blinking aka Flashing on board LED
Let's add a trough hole led
OK, wait...the BREADBOARD
This terminology goes way back in the days.
Generally, you would mount electronic components to a piece of wood (the actual "breadboard"), and do all the wiring with point-point wire and the components just hanging between the various devices.
The story goes that an engineer had an idea for a vacuum tube device late one night. Looking around the house, the only base for his prototype that he found was indeed his wife's breadboard, from the breadbox.
A video by the Make magazine people
Ok, but why do we need to breadboard?
Well, they are useful for making temporary circuits and prototyping, and they require absolutely no soldering.
Prototyping is the process of testing out an idea by creating a preliminary model from which other forms are developed or copied, and it is one of the most common uses for breadboards.
The best way to explain how a breadboard works is to take it apart and see what’s inside.
so Hello world on the breadboard
Using the blink example knowledge, lets make a simple morse code message
here What is morse code
Now we will hookup a servo motor and instruct it to behave a certain way.
The servo has 3 wires, we need to connect them all to the arduino.
red is for 5V
you will find it easy to plug one end of a jumper wire inside the connectors of the servo motor, and the other end to the corresponding pin of the Arduino make sure you use corresponding colors for the jumpers, in bigget setups messy wire can cause you more time to debug
brown is for GND
to GND of the Arduino
and orange is for signal
signal is going into the pin of the Arduino we will use to control the servo motor We will look for a pin that has a wave next to the number ( look at the Arduino board). Those pins are able to output Pulse Width Modulation (PWM) is a fancy term for describing a type of digital signal. Pulse width modulation is used in a variety of applications including sophisticated control circuitry. Also in our case control the servo motor. The control wire is used to send this pulse. For more info how servos work look here []
Now with knowing where the examples are located, find a servo example sketch called sweep.
you should have a code that looks like this
Let's upload the sketch to the board
Observe the motor---->sweeping?
Getting data from an input
Now MAP the values