Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [arduino]

Be sure to use the Arduino Stack Exchange for questions that are more Arduino and less electronics.

Tag usage

Be sure to use the Arduino Stack Exchange for questions that are more Arduino and less electronics.

About Arduino

Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.

Arduino can sense the environment by receiving input from a variety of sensors and can affect its surroundings by controlling lights, motors, and other actuators. Perfect for home appliances, prototyping, robotics, and more. The microcontroller on the board is programmed using the Arduino programming language (based on Wiring) and the Arduino development environment (based on Processing). Arduino projects can be stand-alone or they can communicate with software running on a computer (e.g. Flash, Processing, MaxMSP).

(This text based on the summary at www.arduino.cc)

Related tags:

8873 questions
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How do I go from an Arduino on a breadboard to creating a real device?

My first Arduino project: I have made a headlight sensor that will activate an outside light when a car's headlights hit it. I know I could go buy one, but where is the fun in that? Now I would like to make a "real" one to mount outside my house so…
Steve
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How can I use a 12 V input on a digital Arduino pin?

I am creating a controller for a 12 V system using an Arduino Uno microcrontroller. For the outputs I am using a relay shield to switch the 12 V components. I have a 12 V toggle switch that turns on some 12 V components in the system and I want to…
D.W.
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Saving Arduino sensor data to a text file

How can I save data retrieved from a sensor to a text file on the computer?
desNotes
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5 answers

Is there anything I should watch out for with cheap "Arduino" copies?

There's a plethora of cheap Arduino copies on eBay and similar sites, usually originating from the far east, that can be had for a significant chunk less than the official boards, especially if you're buying more than one. Aside from the moral…
berry120
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How can I detect which arduino board (or which controller) in software?

I have a project that I want to work on either a Uno or a Mega (or even a Due) and it would be nice if I didn't need two versions of the software. For example, on a Mega, to use SoftwareSerial, you have to use different pins than the ones on an Uno.…
tooshel
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5 answers

I understand Arduino: now what?

Alright, I've played around enough with Arduino that I feel pretty comfortable with it. Anything done now is more learning the electronics than it is the Arduino side of it. What's the next step for my learning? Arduino is a combined programmer /…
Chris B. Behrens
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Is it possible to extract code from an arduino board?

Is there a way to export code for an arduino even as a hex file?
xkrpz
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5 answers

How to read the current program from an Arduino?

I acquired an Arduino PCB with an ATmega2560, already programmed with the Arduino bootloader and some program. I do have the sketch, but before fiddling with it, I'd like to backup the current binary that is in the controller. As most Arduinos, it's…
AndreKR
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3 answers

How to program Arduino Nano / Pro-Mini / Pro-Micro clone that has no usb port?

I was looking for a cheapest possible option to get arduino and wireless comms for a dimmable light and come across this ebay item when searching for Arduino Nano clone. It has no usb port so how can it be programmed? Edit: I have discovered that…
DominicM
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How should unused I/O pins be configured on ATMega328P for lowest power consumption?

I'm trying to reduce power as much as possible in an Arduino board I have created. How should the unused input pins be configured? There are a few answers (here, here) already for this, but I'm after something specific to the ATMega328P. Set pin to…
geometrikal
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How to use 3.3V and 5V outputting sensors with Arduino?

To get full resolution from Arduino ADC when using 3.3V sensors you must do two things. Connect 3.3V power supply to AREF pin. Call analogReference(EXTERNAL) in the code. But what about if I must mix 3.3V and 5V outputting sensors. What are my…
tuupola
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What are the best beginner project using an arduino

I'm looking for some cheap beginners projects that show the uses of an arduino. things like turning on and off an LED getting back sensor data ... if anyone has come across useful youtube video tutorials that would be perfect! that sort of thing
mad_z
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How many shields can I plug into Arduino?

I'm going to buy an Arduino Uno/Duemilanove and I would like to add a couple of shields like an LCD and a WIFI shiled. How do I know if I can plug them both to Arduino?
systempuntoout
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I don't understand what are the difference between UNO and Leonardo?

I found that they sell UNO Starter kits and Leonardo Starter kits. There are many different products. My eyes are so busy. I am a greenhand. If I want to buy a stater kit, which one should I buy? UNO or Leonardo?
Sue2013
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How to wire up a 3-wire load cell/strain gauge and an amplifier?

I have a 3-wire load sensor that looks like this: I'm trying to wire it up to my Arduino to detect changes in weight. From what I understand, the changes in voltage are so small that the Arduino can't detect the changes without amplifying the…
Andrew
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