Arduino

Arduino a Free Hardware, the flagship of Open Hardware. I like to think about the arduino board as in the brain that controls all our projects. It really is a microcontroller that allows us to interact with a wide variety of sensors to recognize the world and to create our inventions and devices.

Until now, if we wanted something similar we had to take a PIC, a programming card and assemble our circuit. Arduino, let's say that it has standardized it and thanks to the great community that exists around with documentation for everyone and thousands, tens and thousands of projects carried out and available to build, improve and learn, it has displaced the old programmers, especially among the most novice. Arduino has allowed the entry in droves of fans of digital electronics.

We are going to talk about particular projects in which we are going to use Arduino for our home experiments and our DIY projects

Starter Kit to Arduino Super Starter Kit UNO R3 Project by Elegoo

Elegoo Arduino Uno R3 Starter Kit

Some days ago I bought an Arduino Starter Kit, from the brand Elegoo, an offer of € 30. I have quite a few sensors and components that I have been buying, but I was missing many of those that are offered in the Kit and it seemed like a good idea to buy it and see if this type of product is worth it. They have 4 starter kits, the basic one is the Super Starter which is the kit I bought and then two more that have even more components, but the truth is that I took this one because of the offer. I have been wanting to take the one with radio frequency.

Reading some review of the Elegoo boards they speak well, but there are people who complain about the compatibility of the board that is a clone of Arduino UNO R3. My experience has been very positive, the plate has worked perfectly, compatible with the Arduino IDE without doing anything, just plug and play. I have loaded the blink, I have made some modification. I have tried some components quickly and everything works fine (Tested with Ubuntu 16.10 and kubuntu 17.04)

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Arduino multitasking and time management

Arduino test to multitask with milis

I am not an Arduino expert, despite having the plate for a long time I have hardly investigated. The times that I have used it it has been as a tool copying and pasting code already created but without much interest in really learning how it works but simply with the intention of making it work and be useful to me. This Christmas I tuned the Nativity scene a bit with some LEDs and an HC-SR04 ultrasound sensor. And I stopped to observe what had to be done.

I just wanted to do different things with two LEDs from the same signal. Whoops. I quickly stumbled upon what I think will be one of the first limitations you come across when you start messing around with Arduino. And you don't need to make it too complicated. I'm just talking about some LEDs, you realize that you can't do what you want correctly.

Let's make it clear from the start multitasking does not exist in Arduino, two jobs cannot be processed in parallel. But there are techniques to make calls so fast that they seem to work at the same time.

I tell the case in more detail. At Christmas I set up a Nativity Scene and I wanted certain Nativity lights to come on when my daughters approached. Nothing complicated. I just wanted two branches of led lights to work differently to the values ​​of a proximity sensor.

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How to make a homemade robot with Arduino

In this article we are going to learn how to perform a small homemade robot controlled by Arduino board. The objective of the robot will be to avoid obstacles by means of an ultrasound sensor, when it reaches an obstacle it will look both ways and determine the best option to continue its march.

Hardware

In this first part we will focus on building the robot platform, assembling the parts and connecting.

robot_arduino

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Servomotor control with PWM and Arduino

We have already featured on the blog Arduino (https://www.ikkaro.com/kit-inicio-arduino-super-starter-elegoo/) and in fact appear in several projects including this one (https://www.ikkaro.com/node/529)

Now let's go a little further and let's modulate signals by pulse width (PWM), this can be used for example to handle servomotors like the ones presented here (https://www.ikkaro.com/introduccion-al-aeromodelismo-electrico/) or rgb leds among others. For those who do not know what PWM is, it is a modulation that is done to a signal and that serves to "transmit information through a communication channel or to control the amount of energy that is sent to a load" (Wikipedia)

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What is Arduino

I've been looking at projects made with Arduino, so I was curious about what this Arduino and I have searched for some information on the net.

Arduino is an open source hardware platform based on a simple I / O board and a development environment that implements the Processing / Wiring programming language. Arduino can be used to develop autonomous interactive objects or it can be connected to computer software

arduino board

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