arduino uno specs


First, off let’s have a look at the most popular Arduino boards fittingly named own. We know you know we Pinned up the you smart controller., I extended to the female headers at the Edge of the board. On the right side. We have the digital pin 0 to 14 and on the left side, the analog pins, as well as some power pins. The function of the digital pins is easy to explain. They can either be pulled down to ground, so a binary 0 Low or pulls up to the supply voltage so by an 11 Hi. This way, by connecting the led with current, limiting resistor to ground and the digital pin, We can pull the output id to source current from the supply voltage or by connecting the led to the supply voltage. We can pull the pin low and off synC current, But not only that by declaring a digital pin as an input, Which I will show you how to do later. The Arduino can also determine whether the pin senses the ground voltage or the supply voltage. Additionally, some of the digital pins are labeled with a weekly line, which means we can create a Pwm signal with them. That means, instead of just turning on or off an led here., We can adjust its brightness, Because the Pwm signal provides a supply voltage with an adjustable on time. Obviously, the shorter, the on time this our curvy we’ll, get Now let’s move on to the our pins, which, as we can see our labels as input pins.

That means by connecting a voltage to such a pin that lies between the supply voltage of the Arduino and Decock Potential. We cannot only research whether the voltage is high or low as with the digital pins, But we can precisely see what the voltage value is. In conclusion, the digital outputs, the digital inputs, Pwm, outputs, Which is commonly referred to as the analog outputs and the analog inputs, are the main functions of the Arduino board to power rates. I’Ve been using an uSB connection, But you can also use the DC Jack or the in pin Whoopin input voltage of 6 to 12 volts or directly. The fight will pin moving input, voltage of Obviously Pie holes. Personally, I like to use the Arduino uno when I want to do a quick test with a new sensor or something similar, But if I want to build a more complicated circuit on a breadboard, I usually go for the breadboard compatible Arduino Nano. It Features all the mandatory components and can be powered through usB, Directly through 5 volts or once again above an input voltage of 6 to 12 volts at the B and pin, But even though they’re a bit cheaper in comparison to a complete of minoru. No, I try to not embed them in a finalized project For that I use the even smaller Arduino Pro Mini, Which you can get for just 2. This time. Usb power is not possible, But you can either directly power the board through the VCC pin or once again, whoops 6 to 12 volts through the rope in Another component.

That is missing from the Pro Mini is the usB to serial converter, Which was used by the other two boards to program the microcontroller. That means we need an additional ftDI breakout board that we have to push on to the corresponding pins of the Arduino Pro Mini to program it and Speaking of programming, let’s download and install the latest Arduino. I yes and connect the Arduino Nano to the computer. After starting the software, we see the two main sections of the sketch Setup and loop, which tell you by themselves what they do. In the setup section we can use the pin mode function to set the digital pin 7 as an output and In the loop section we can then use the digital write function to set the output. I then write 500 milliseconds, Aka, half a second with the delay function and then set the pin low again and wait for another half a seconds By choosing the correct communication port and uploading the sketch.. We are Eccentrics idea of the Arduino Nano opening shortly and Afterwards. The Led does what we program it to do, but be careful not to overload the outputs, because the datasheet of the AtmeGA328 Pu States in Maximum current draw of only 40 milliamps. Next, we can initialize the serial monitor, wooper baud rate, Which is pretty useful when you want to check on a variable, while the code run. This way after changing the digital pin to an input, we can output.

The value of the digital read function to the serial monitor Now, while the digital pin floats in the air the readings from its code bit crazy. That is why we usually use a 10 kilo ohm resistor to either pull the inputs to the supply, voltage or ground and Task by hooking up a switch and connecting the other side of it to the opposite potential of the resistor. We have two stable spades, which we can use in the codes to Trigger any vents and Best of all the resistor is not mandatory, because we can use the integrated pull up resistors of the microcontroller, Which are around 20 kilo Ohms each Next. I define the digital pin 3 as an output and use the analog write function to create a Pwm signal. In This case, the value 200 would equal an on time of 78. Since will this 8 bit value with 255 equals 100 and zero equals zero percent To adjust the speed up um signal to entry, though We could connect the middle pin of a potentiometer to an analog inputs and the other two pins to VCC and ground. This way we created a voltage divider, Which we can sample by defining the error, pin as an input and using the analog read function now. The seizure monitor gives us values between 1020 3 and 0, which is a tempered value, both 1023 being the supply, voltage and 0 being the ground potential. By simply dividing this value by 4, we can feed it directly into the analog, write function and Thus finally control the led brightness to opponent, xiamen and with that being said, you are now familiar with the five Fundamental commands of the Arduino codes.

Of course, there’s plenty more to talk about, like variable types, control structures, comparison, operators Interrupts and much more. So if you like this video series so far and wanted to continue, Then give this video a like, so that Arduino 102 will follow soon.


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Originally posted 2015-09-25 21:16:28.

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Comment (30)

  1. buy original arduino boards. they can be more expensive but the quality is the best you can get, and you will never have problems with those. And of course you support the creators of this project. –>

    1. Surely when I get more money, but as for my first experimental project where I broke one board already I think I can’t afford anything but chinese 3€ boards.

    2. Prove all these spur of the moment claims. Even better would be to stay on topic. Notice the arduino basics 101 title of the video? I just don’t see how that translates to nonsensical cries of fake vs original on that which is an open source platform in the first place. ALL on earth will take the most money they can. Why am I even wasting my time typing this mess.

  2. I am willing to make an interactive chipset mounted on my bicycle who tells me my location or my speed when I ask.please tell me.i was directed to your channel by other two. Hope you help

    1. Google ‘Arduino gps module’. There is a lot of advice. U-blox does such modules. The neo-6m for example. If you are beginning then I suggest you first learn how to display messages on an lcd display. Then learn how to send serial data from your p.c. to the arduino and display on lcd. Then try with gps module. Step by step. Don’t try too do it all in one go.

  3. I was just given a huge kit for this stuff but 1 minute into the video it was already way over my head. My lawyer brain doesn’t know how to code or anything about electricity. Any advice on where to start learning?

    1. Hi!
      I started learning with simple Java codes on computer using Eclipse to write high school it exam codes and now one year later i totally understand arduino with a little bit of practising of course.

    What programing language is used In Arduino
    Or what programing language is easy for beginners on Arduino

    1. The programming language used in Arduino is JavaScript or just Java
      However, there is a way you can do it in Python. In my opinion, I’d suggest you use JavaScript.

  5. Can u plz tell details of this circuit u fixed at 3:18
    Most probably it is the WiFi Module EP8266
    If its the same… I would like to request you to please make projects using this…

  6. great! very thorough explanation. however i have a question, does an output pin also have a built in resistor, or is it only for inputs?

  7. seems like cheating which is why im trying to avoid getting one as long as possible, but your boost converter design doesn’t work well without one … I need a custom boost converter that can put out the 54v required for ebike battery.


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