Changing the Arduino Clock Speed

Hello, in this guide I will teach you how to change the clock speed of our Arduino, so we can do without components, reduce consumption, use it with less voltage, or even overclock our ATMega328p. Originally Arduino works at 16Mhz, but it is possible to change it so that it…

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Nokia 5110 LCD Display with Arduino

In this guide I am going to show you how to connect a Nokia 5110 LCD display with Arduino to be able to print texts and numbers on it. Among the advantages are consumption, since this display will consume approximately 0.25ma with the light off (15ma with the light on).…

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Debug with Serial.print on Arduino

In this little guide I am going to teach you something basic to be able to debug your program with Serial.print and other commands. If you are a programmer, you will know how important logs are to detect failures in your program, and since in Arduino we do not have…

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Reduce power consumption on Arduino

This time I bring you a way to reduce power consumption on Arduino. This will be very useful if your project is going to be powered by batteries and even by solar panels. If your project is basically to read a sensor every so often, you can reduce power consumption…

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Arduino: TaskScheduler, no more millis or delay

In this post I am going to talk about TaskScheduler. TaskScheduler are, as the name implies, an object that will allow us to create periodic tasks without having to use millis or conditionals. How do they work? TaskSchedulers are objects to which you can add tasks and they are in…

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Hardware and Software Interruptions in Arduino

One very useful thing I would like to talk about is Interruptions in Arduino. An interruption is a signal of either Hardware or Software that causes our Arduino to exit the main program and execute an indicated function. Before starting with this, there are a number of important considerations to…

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Pull-up and pull-down resistors on Arduino

Hello, today I bring you a basic tutorial about the pull-up and pull-down resistors, and the INPUT_PULLUP input mode of the Arduino pins. This type of resistance will help your Arduino not be affected by electrical noise and receive errors in your measurements such as false pulsations on a button.…

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Read and write data from EEPROM with Arduino

One of the things that we all ignore many times (I confess that I have ignored it until now), is the EEPROM memory of our Arduino. This memory is not very large, but it has the advantage that it survives the shutdowns of our microcontroller. That is why in this…

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