The History Of The Arduino Microcontroller

The History Of The Arduino Microcontroller The Arduino microcontroller was initially created as an educational platform for a class project at the Interaction Design Institute Ivrea1 in Milan (Italy) in 2005. It derived from a previous work of the Wiring microcontroller designed by Hernando Barragà ¡n2 in 2004. From the beginning, the Arduino board was developed to attract artists and designers. The Wiring microcontroller was created by Hernando Barragan to be used for parsing data to electronic devices. His aim was that it could be used by non-technical people who only had basic experience with using computers. He first of all wanted it to be used as a prototyping tool. Since he needed help to create an easy software tool to programme the board he engaged Casey Reas3 and Massimo Banzi4 as his assistants. Reas created the visual programming language for the prototyping tool. He had studied interaction art as an undergraduated, and continued studying with John Maeda5 at the MIT6. After that he developed Processing7, an easy programme language oriented to designers and artists. Banzi was more interested in developing the microcontroller as an art and design tool. So he decided to brake up with Barragan and to instead create a new prototype that would fit with his ideals. The Arduino creators were Massimo Banzi, David Cuartielles8, Dave Mellis9, Gianluca Martino10 and Tom Ignoe11. This team wanted to simplify the Wiring board through the Arduino microcontroller (created by Banzi), making it easier and friendlier for the non-technical audience. And that was one of their goals to make this device triumph against others. The price was another goal to make them win against others. The Wiring Board costs about  £ 54 while the Arduino Board is  £ 20. That makes sense because it is less powerful and smaller than the Wiring Board. But this isnt a problem for designers and artists because they were searching for something that could be destroyed and your wallet wouldnt suffer from that. David Zicarelli12 (): I was really struck by the idea of what a radically inexpensive computer could mean to people making art a design goal of the Arduino project was that you could make installations and not have to tear them apart when you were done because you needed your laptop to read your e-mail. So then you can leave it embedded into projects permanently. Another way to assist users was the USB connection. The Wiring Board works with a Serial port, which is more difficult to have in a normal computer or laptop and to work with. The Arduinos plug and play nature makes it easy to understand and easy to manipulate the interaction of a project. Further goals were to achieve competitive advantage in IDE13 and open source14 supported by the community. 3. IDE. The software tool Every microcontroller needs software to be programmed. The Arduino board is not a case apart. It has its own integrated development environment (IDE). It is free and everyone can download it from its official website using either the Windows, Mac OS X or Linux platform. That allows Arduino Board to gain more users and it also helps it to grow. The IDE is very easy to understand. It contains only three different sections. The compiler, the text editor and the debugger. In the compiler part we can find the verifying tool that shows the user if the code was well written. Next to that tool, there is a button to make a new project. Then, we can see the open and save buttons; the project can be opened or saved in any folder. In addition we can find the most important tool, the compiler tool that allows you, when the code is verified, to upload the code into the Arduino Board. And the last button that it has is the serial monitor tool, which is used to debugging and monitoring data from your project. The next section is the text editor tool where the code is written. Arduino works with processing language. This language was designed with the intention to make cryptic looking instructions comprehensible and useful. It contains a lot of libraries15, which make it easier for artists and designers to prototype their ideas. However, experienced users are allowed to work in a lower programmatic level to access certain aspects of the Arduino code. In other words this means the more experience a user has the lower is the level in which he can work. And the last section is where the debugger is placed. This one provides feedback to the user fostering confidence to move forward at a rapid pace. It also helps to find the bugs in the code when this doesnt work. The whole Arduino project is supported by a community. The IDE and the Arduino microcontroller continuously advance in hardware design, software examples and popularity because users save and share documents, codes and designs online. This method of allowing other users to freely use someone elses documents is called open source. This means that every user contributes a part even if it is only a very small one to the fast development of Arduino project. However, the Arduino project is not only useful for artists and designers but also for other groups of people such as engineers, hardware hackers, interaction designers, educators and robotics enthusiasts. For example, if you are an engineer you can work on artistic projects and if you are and artist you could work on engineer project as well. This means those groups of people are blending ideas each other to growing up the Arduino community.

Preparation and Sn1 Reactivity of 2-Bromobutane

Preparation and SN1 Reactivity of 2-Bromobutane Whitney Bellido Department of Chemistry, Illinois State University, Normal, IL 61790-4160 Submitted: April 4th, 2013 Introduction The overall goal of this experiment is to understand and be familiar of SN1 reactivity. We also learned how to prepare 2-Bromobutane by learning how to distill and extract this product from its organic layer. Finally, another goal was to specifically understand the relative reactivity of alkyl halides under SN1 conditions by reacting the alkyl halide and silver nitrate in ethanol.Results and Discussion The Overall Reaction The Proposed Mechanism Experimental Procedure To prepare the 2-Bromobutane you must fill a 100 mL round bottom flask with 20 mL of 12M sulfuric acid and 7. 4 mL of 2-butanol. Then add 8. 0 g of ammonium bromide along with a magnetic stir bar. Then attach the flask to the apparatus, which is mounted on a Thermowell over a stirrer and a condenser attached to it, along with the thermometer in the flask. Then the mixture was heated at 90oC then kept at the range of 90oC-100oC for 30 minutes.When that is completed add 20 mL of water into the flask to perform a simple distillation to collect the distillate in a graduated cylinder, keep doing this until there is no more 2-Bromobutane collected. Use a Pasteur pipette to draw off the organic layer to another container. Add the potassium carbonate to allow the liquid to dry by swirling it. Once this is completed the reactivity of alkyl halides under SN1 conditions was tested. Adding two drops of our product and the other different compounds into different test tubes along with 1mL of ethanolic silver nitrate reagent.We are comparing these by seeing how they react and if there is no reaction after 5 minutes we will place the test tubes in a beaker of water that is heated at a temperature of 70oC-80oC and observe what happens. Experimental Stoichiometry Compound| Molecular Weight| Quantity| Moles| 2-Butanol| 74. 122 g/mol| 7. 41 mL (6. 01 g)| 0. 081| Sulfuric Acid| 98. 079 g/mol| 20. 1 mL| 0. 242| Ammonium Bromide | 97. 94 g/mol| 8. 02 g| 0. 082| The limiting reagent is the 2-Butanol. Yield Data Product Name| 2-Bromobutane | Molecular Weight| 137. 02 g/mol| Boiling Point Range| 89Â °C-91Â °C|Theoretical Yield (Moles)| 0. 081 moles| Theoretical Yield (grams)| 11. 09 grams| Actual Yield (grams)| 6. 84 grams| Actual Yield (moles)| 0. 05 moles| Percent Yield| 62%| NMR table Signal| Chemical Shift (ppm)| Multiplicity | Integration | A| 4. 1 ppm| Sextet| 1| B| 1. 85 ppm| Pentet| 2| C| 1. 7 ppm| Doublet| 3| D| 1. 05 ppm| Triplet| 3| Reactivity of Alkyl Halides Compound| Room Temperature| Heating| 1-Bromobutane | After 30 seconds, the mixture was a cloudy whitish color but no precipitate formed| After 5 minutes, it changed into a yellow color with precipitate formed. 2-Bromobutane | After 30 seconds, the mixture was a light yellowish color and a precipitate formed instantly. | Not Heated| 2-Bromo-2-methylpropane| After 30 seconds, the mixture was yellow and a precipitate formed instantly. | Not Heated | Compound| Room Temperature| Heating| 1-Chlorobutane | After 30 seconds, the mixture was clear. | After 5 minutes, the color changed slightly to white and lightly cloudy. | 2-Bromobutane | After 30 seconds, the mixture was a white cloudy color and formed a precipitate instantly. Not Heated| 2-Iodobutane| After 30 seconds, the mixture was yellow and precipitated instantly. | Not Heated| Conclusion In conclusion, the SN1 reaction of 2-Bromobutane was performed. According to the Yield Data table, when the actual yield and theoretical yield are calculated we can get the percent yield, which was 62%. At least this number was higher than 50%; I can understand how this could have happened. When I was drying the reagent with potassium carbonate, prior to that I had put the other pellets, which were calcium chloride on accident.This probably affected my percent yield also with the fact that the temper ature was not well maintained it kept fluctuating under 90OC. According to the reactivity of alkyl halides, the results of these tables can concluded the theories of the conditions of SN1 reactions. The first table states that the tertiary carbocation are more stable which allows this reaction to perform faster than second and primary structured carbocations. Then the second table can concludes that iodine is the best leaving group because it is a much weaker base than the bromide ion and chloride ion causing it to react faster.

Doctor Assisted Suicide And Suicide - 1585 Words

Doctor assisted suicide is a topic that has recently become a much larger debated issue than before. A timeline put together by Michael Manning and Ian Dowbigging shows that prior to Christianity, doctor assisted suicide was something that was tolerated, and was not heavily questioned (2). Yet, in the 13th century, Thomas Aquinas had made a statement about suicide as well as doctor assisted suicide, and his words shaped the Catholic teaching on suicide into what they teach today. Beginning in the 17th century, Common Law tradition frowned upon suicide, as well as assisting in suicide, and the colonies had adopted the Common Law principles. (2) In 1828, New York passed a law completely outlawing the assistance of suicide, and made it to where whomever assisted in the suicide could be tried for murder. In 1976, California became the first state to allow patients to withdrawal themselves from life saving medicines, and this Natural Death Act was seen as a gateway to assisted suicide. ( 3-7) As controversy about California s Natural Death Act increased, Pope John Paul II released a statement in 1980 which opposed to killing someone out of mercy, but allowed the increased use of painkillers (8). Although, in 1994 Oregon passed their Death with Dignity act, and with it came incredible amounts of backlash. Yet, in 2008 Washington state passed the same act to legalize doctor assisted suicide. (10-12) In most people s lives, they will experience a moment of knowing death is near.Show MoreRelatedDoctor-Assisted Suicide Essay928 Words   |  4 Pagesseeking physician-assisted suicide or deciding to live with a terminal illness. It is not everyday a person sits around and think about what they would do if an illness became unbearable to them. One could agree with Diane Coleman’s article â€Å"Doctor-Assisted Suicide Should Not Be an Option† or one could agree with Kathryn Tucker’s article â€Å"People Should Be Allowed To Choose Doctor-Assisted Suici de.† To better understand the authors’ opposing positions concerning physician-assisted suicide, one must examineRead MoreIs Doctor Assisted Suicide Ethical?1363 Words   |  6 Pages Is Doctor-Assisted Suicide Ethical? â€Å"Doctor-assisted suicide is the act of a physician facilitating the death of patient by providing the means or information to enable a patient to perform a life-ending act† (American Medical Association). When thinking of assisted suicide the first thing that comes to mind is whether it’s ethical for a doctor to assist in the suicide of a patient. There are many arguments both for and against the actRead MoreThe Controversial Issue of Doctor-Assisted Suicide821 Words   |  4 PagesThe Controversial Issue of Doctor-Assisted Suicide Imagine youu have just found out you are going to die within three months. Recently the questions have been changed form, What am I going to do with the rest of my life? to When should I kill myself? With painful and crippling diseases such as AIDS and cancer, and Alzheimers along with doctors such as Dr. Kavorkian, some people are choosing death over life. Doctor assisted suicide has been a very controversial subject in the past fewRead More Essay on Euthanasia and Doctor-Assisted Suicide1175 Words   |  5 PagesUnderstanding Euthanasia and Assisted Suicide    This paper will address some of the more popular points of interest involved with the euthanasia-assisted suicide discussion. There are less than a dozen questions which would come to mind in the case of the average individual who has a mild interest in this debate, and the following essay presents information which would satisfy that individuals curiosity on these points of common interest.    Euthanasia and assisted suicide are legal in the stateRead MoreThe Great Debate On Doctor Assisted Suicide Essay1239 Words   |  5 PagesThe Great Debate on Doctor Assisted Suicide Euthanasia, in today’s world, is a word with opposing meanings. Originally, it meant â€Å"a good death† (Leming Dickinson, 2016). Since the legalization of euthanasia around the world in the early 1990’s, the meaning has changed. Several pro-euthanasia sites would call it a humane and peaceful way to end the dying process, by either stopping the course of treatment or the use of lethal doses of medications (Leming Dickinson, 2016). Con-euthanasia activistsRead MoreEuthanasia Is A Form Of Doctor Assisted Suicide1379 Words   |  6 PagesEuthanasia is a form of doctor assisted suicide. There are many different types of Euthanasia and all are currently illegal in the United States with the exception of the state of Oregon. When a patient is being Euthanized they can be given an injection intravenously which causes their death this is called Euthanasia by action. A person could also be assisted to death through euthanasia by omission; this is when the patient is not provided with the appropriate things such as food or water. Also patientsRead MoreDoctor Assisted Suicide : The Moral And Immoral Rights Essay1308 Words   |  6 PagesDoctor Assisted Suicide Doctor-assisted suicide helps numerous people with life threatening illnesses die in peace. Brittany Maynard is the most recent case that deals with the moral and immoral rights of doctor-assisted suicide. Other doctors helped their patients, however they did not publicize the action being done to help. Doctor Kevorkian was the first doctor that did not hide as to how he would help his patients that were terminally ill. Doctor assisted suicide is frowned upon by a varietyRead MoreFree Doctor Assisted Suicide Within Canada1136 Words   |  5 PagesIn late February 2016, a recent debate among Canadian politicians arose on whether mature minors have the right to access doctor-assisted suicide within Canada. In Canadian Paediatric Society1 article, it explains how the government has a three-year deadline in order to create new legislation. However, the the Canadian Paediatric Society (CPS) believes that this three-year deadline Is not enough time to â€Å"gather adequate and appropria te information† on whether this practice should be allowed to beRead More Doctor-Assisted Suicide Should be Legalized Essay3204 Words   |  13 Pageslaw in their case; animals have the right to a merciful death.† ― Milan Kundera, The Unbearable Lightness of Being One of the most controversial topics that is being debated today, both morally and legally, is assisted suicide, sometimes known as active euthanasia. Assisted suicide is the act of directly intervening in order to end the life of a terminally ill patient (i.e. administering a large amount of sleeping pills). The word euthanasia, comes from Latin eu for good and thanatosRead More The Vegetative State and Doctor-Assisted Suicide Essay2505 Words   |  11 PagesVegetative State and Euthanasia      Ã‚  Ã‚  Ã‚  Ã‚   Much media attention has been directed at the very practical use of euthanasia or assisted suicide on patients who are in a vegetative state or irreversible coma. The truth is that a significant number of such cases actually recover. This essay is devoted to those types, some very young, who would have been killed if euthanasia/assisted suicide had been legalized.    Lets begin our consideration with a nine-year-old named Ryan Atencio. He was taken off

Post Traumatic Stress Disorder ( Ptsd ) - 1708 Words

Sara Gayfield Intro: There are almost two and a half million Operation Enduring Freedom (OEF ), Operation Iraqi Freedom (OIF) and Operation New Dawn (OND) veterans in the United States (DoD, 2014). Post traumatic stress disorder (PTSD) and traumatic brain injury (TBI) are signature wounds of these military operations, and are commonly referred to as â€Å"invisible wounds of war† (Tanielian et al 2008, from bello have another?-). OEF, OIF, and OND consisted of the longest and most frequent deployments in U.S. History with forty-eight percent of veterans having served at least two deployments (DoD, 2013). Children’s and non-deployed parent’s ability to cope and adapt to the deployment decreases as the length and frequency of deployments increase (Chandra, Martin, Hawkins, Richardson, 2010; Lester et al., 2010). Children s and partner s stress, anxiety, and symptoms of depression increase as the length of their loved one s deployment increases (Gorman, Blow, Ames, Reed, 2011; Mansfield, Kaufman, Engel, Gaynes, 2011; Lester et al, 2010). Support from within the military branches, Veterans Affairs, Department of Defense, extended family, health care providers, schools, and other social infrastructues/institutions within the community is critical for healthy family functioning and the future of military-connected children (MC). CHILDREN DURING DEPLOYMENT â€Å"A common saying in the military is that when one person joins, the whole family serves† (Alfano, 2016, p. ).Show MoreRelatedPost Traumatic Stress Disorder ( Ptsd )990 Words   |  4 PagesPost-Traumatic Stress Disorder Post-traumatic stress disorder is a common anxiety disorder characterized by chronic physical arousal, recurrent unwanted thoughts and images of the traumatic event, and avoidance of things that can call the traumatic event into mind (Schacter, Gilbert, Wegner, Nock, 2014). About 7 percent of Americans suffer from PTSD. Family members of victims can also develop PTSD and it can occur in people of any age. The diagnosis for PTSD requires one or more symptoms to beRead MorePost Traumatic Stress Disorder ( Ptsd )1471 Words   |  6 PagesRunning head: POST-TRAUMATIC STRESS DISORDER 1 Post-Traumatic Stress Disorder Student’s Name Course Title School Name April 12, 2017  Post-Traumatic Stress Disorder Post-traumatic stress disorder is a mental disorder that many people are facing every day, and it appears to become more prevalent. This disorder is mainly caused by going through or experiencing a traumatic event, and its risk of may be increased by issuesRead MorePost Traumatic Stress Disorder ( Ptsd ) Essay1401 Words   |  6 PagesAccording to the Mayo-Clinic Post Traumatic Stress Disorder, commonly known as PTSD is defined as â€Å"Post-traumatic stress disorder (PTSD) is a mental health condition that s triggered by a terrifying event — either experiencing it or witnessing it. Symptoms may include flashbacks, nightmares and severe anxiety, as well as uncontrollable thoughts about the event† (Mayo Clinic Staff, 2014). Post Traumatic Stress disorder can prevent one from living a normal, healthy life. In 2014, Chris Kyle playedRead MorePost Traumatic Stress Disorder ( Ptsd )1198 Words   |  5 Pages Post-traumatic stress disorder(PTSD) is a mental illness that is triggered by witnessing or experiencing a traumatic event. â€Å"PTSD was first brought to public attention in relation to war veterans, but it can result from a variety of traumatic incidents, such as mugging, rape, torture, being kidnapped or held captive, child abuse, car accidents, train wrecks, plane crashes, bombings, or natural disasters such as floods or earthquakes(NIMH,2015).† PTSD is recognized as a psychobiological mentalRead MorePost Traumatic Stress Disorder ( Ptsd )1423 Words   |  6 Pages Mental diseases and disorders have been around since humans have been inhabiting earth. The field of science tasked with diagnosing and treating these disorders is something that is always evolving. One of the most prevalent disorders in our society but has only recently been acknowledged is Post Traumatic Stress Disorder (PTSD). Proper and professional diagnosis and definitions of PTSD was first introduced by the American Psychiatric Association(APA) in the third edition of the Diagnostic andRead MorePost Traumatic Stress Disorder ( Ptsd ) Essay1162 Words   |  5 PagesSocial Identity, Groups, and PTSD In 1980, Post Traumatic Stress Disorder (PTSD,) was officially categorized as a mental disorder even though after three decades it is still seen as controversial. The controversy is mainly founded around the relationship between post-traumatic stress (PTS) and politics. The author believes that a group level analysis will assist in understanding the contradictory positions in the debate of whether or not PTSD is a true disorder. The literature regarding this topicRead MorePost Traumatic Stress Disorder ( Ptsd ) Essay1550 Words   |  7 PagesPost Traumatic Stress Disorder â€Å"PTSD is a disorder that develops in certain people who have experienced a shocking, traumatic, or dangerous event† (National Institute of Mental Health). Post Traumatic Stress Disorder (PTSD) has always existed, PTSD was once considered a psychological condition of combat veterans who were â€Å"shocked† by and unable to face their experiences on the battlefield. Much of the general public and many mental health professionals doubted whether PTSD was a true disorder (NIMH)Read MorePost Traumatic Stress Disorder ( Ptsd )944 Words   |  4 Pageswith Post-traumatic stress disorder (PTSD Stats). Post-Traumatic Stress Disorder is a mental disorder common found in veterans who came back from war. We can express our appreciation to our veterans by creating more support programs, help them go back to what they enjoy the most, and let them know we view them as a human not a disgrace. According to the National Care of PTSD, a government created program, published an article and provides the basic definition and common symptoms of PTSD. Post-traumaticRead MorePost Traumatic Stress Disorder ( Ptsd )1780 Words   |  8 Pagesmental illnesses. One such illness is post-traumatic stress disorder (PTSD). Post-traumatic stress disorder is a mental illness that affects a person’s sympathetic nervous system response. A more common name for this response is the fight or flight response. In a person not affected by post-traumatic stress disorder this response activates only in times of great stress or life threatening situations. â€Å"If the fight or flight is successful, the traumatic stress will usually be released or dissipatedRead MorePost Traumatic Stress Disorder ( Ptsd )1444 Words   |  6 PagesYim – Human Stress 2 December 2014 PTSD in War Veterans Post Traumatic Stress Disorder (PTSD) is a condition that is fairly common with individuals that have experienced trauma, especially war veterans. One in five war veterans that have done service in the Iraq or Afghanistan war are diagnosed with PTSD. My group decided to focus on PTSD in war veterans because it is still a controversial part of stressful circumstances that needs further discussion. The lifetime prevalence of PTSD amongst war