Arduino

Arduino is an open-source computer hardware and software company, project and user community that designs and manufactures kits for building digital devices and interactive objects that can sense and control the physical world.[1] Arduino boards may be purchased preassembled, or as do-it-yourself kits; at the same time, the hardware design information is available for those who would like to assemble an Arduino from scratch. The first Arduino was introduced in 2005. The project leaders sought to provide an inexpensive and easy way for hobbyists, students, and professionals to create devices that interact with their environment using sensors and actuators. History[edit] Arduino started in 2005 as a project for students at the Interaction Design Institute Ivrea in Ivrea, Italy. Hardware[edit] An official Arduino Uno with descriptions of the I/O locations The Arduino board exposes most of the microcontroller's I/O pins for use by other circuits. Official boards[edit] Shields[edit] Notes[edit]

4051 A multiplexer or demultiplexer enables you to expand the in-and outputs on your Arduino board. The 4051 is an 8 channel analog multiplexer / demultiplexer, thus: If you use the 4051 as a Multiplexer: You can choose between 8 different inputs and select just one you want to read at the time.If you use the 4051 as a Demultiplexer you can choose between 8 different outputs and select just one you want to write at the time. Futhermore, the 4051 is able to work with analog values; in the case of the Arduino, you are able to use the analog inputs with a voltage between 0-5V and route them to an Analog-In Pin on your Arduino. To select the Pin we would like to read or write, we have to use the three Select Pins (S0, S1 and S2). If S0 and S1 are HIGH and S2 is LOW pin y3 is selected (1+2+0 = 3).If S0 and S2 is HIGH and S1 LOW pin y5 is selected (1+0+4 = 5). It is not possible to read or write more than one pin on the 4051 at the same time, because you can only select one pin at a time.

Practical Arduino: News Arduino with Visual Basic Download code - 53.2 KB Introduction I have an Arduino 2009 board setup with a simple temperature monitor: I wanted to use Visual Basic to communicate with the board and build a graphics display page. Arduino provides interface code for various other languages. There is also a very professional interface to Visual Basic available using Fermata written by Andrew Craigie: The Firmata library implements the Firmata protocol for communicating with software on the host computer. All the functions are in classes as this brings discipline to the coding. Program requirements The Arduino board samples the temperature every 10 seconds. If the serial input is "U", all (if any) of the stored EEPROM samples will be sent on the serial output. On closing, the user computer will save the samples in a user folder. Serial connection The Arduino uses a FTDI USB to serial port chip. Hide Copy Code

Prezi Online presentation design platform Prezi is a Hungarian video and visual communications software company founded in 2009 in Hungary, with offices in San Francisco, Budapest and Riga as of 2020.[1] According to Prezi, in 2021, the software company has more than 100 million users worldwide[2] who have created approximately 400 million presentations.[3][1][4] In 2019, they launched Prezi Video, a tool that allows for virtual presentations within the video screen of a live or recorded video.[5] The word Prezi is the short form of "presentation" in Hungarian.[6] As of January 2022, the company had around 300 employees in 13 countries.[7] In early 2011, Prezi launched its first iPad application. That same year, it received $14M in Series B venture capital funding led by Accel Partners.[11] A Prezi iPhone app was launched in late 2012.[12] In July 2020, Prezi named President Jim Szafranski as the new CEO, and announced that Co-Founder and CEO Peter Arvai would become Executive Chairman. [edit]

Exploring Arduino | Companion Site for the Book by Jeremy Blum Welcome Home Automation with Arduino Home Automation with Arduino is a complete resource to start building your own home automation systems based on the Arduino platform. By using this product, you will learn how to automate your home using DIY home automation systems. I also designed the book so it will inspire you to get your own ideas and start designing & building your own home automation systems. In this product, I will show you how to use the Arduino platform for home automation. You will learn how to interface commonly used home automation sensors & actuators to Arduino. There is also a whole part of the book dedicated to wireless communications with Arduino. Each part of the book will guide you through the process of building a given home automation system.

Sensing Barometric Pressure | BMP085 Light, location, temperature… What’s next? Well, how about Barometric pressure? You know.. that thing that determines so much of our weather. For this example, the way we will be calculating altitude is imprecise and does not compensate for temperature or many other things that can contribute to differences. The reading differs from my weather report Im not going to get into why this is, but to make comparisons easier, your weather report uses a sea-level compensated reading, not an actual reading. Hooking it up Hooking it up to your Arduino is pretty simple, the BMP085 is an I2C device. Code The code for this is largely copied and based off of Jim Lindblom’s example from SparkFun (Thanks Jim!). The code simply outputs the temperature, pressure, and altitude in the serial terminal.

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