Electronics related posts.
Today I bring you several circuits, which will help you protect your projects against reverse polarity. This will help you avoid damage to your circuit if at any time someone connects the power supply backwards. First I’ll start with the most basic diode-based ones, then move on to the relay-based ones, and lastly I’ll use … Read more
Today I bring you a tutorial on how to mount a temperature and humidity sensor with Arduino, using the DHT11 or DHT22 temperature sensor, and the Nokia 5110 display. When doing the project, I focused on consuming as little as possible, since nobody likes having to change the sensor batteries on a daily basis. For … Read more
Today I bring you how to use on Arduino the display from Nokia 5110 LCD and show graphics. If you missed any of the other two parts, I recommend you take a look. Nokia 5110 LCD Display with Arduino (Part 1)Nokia 5110 LCD and text with Arduino (Part 2) On this occasion I am going … Read more
Hello, after bringing you the basic part of how to use the LCD display of the Nokia 5110 on Arduino, today I bring you a second part, in which I will teach you several more functions of the Adafruit library, with which we can display on the Nokia 5110 LCD some text. If you don’t … Read more
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). This makes it ideal for … Read more
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 a file system, you must … Read more
In this case I am going to bring you a guide about the basic circuit and programming of an ATTiny85. The basic circuit is very simple and only needs a resistance as an external component, unless we want to vary the clock speed with an external crystal. To keep this guide simple for the time … Read more
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 by more than 30 times. … Read more
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 charge of executing them from … Read more
In this tutorial I am going to show you what Schmitt Trigger is and what it is for. A Schmitt Trigger is a type of logical input that will provide hysteresis or two threshold levels: high and low. This will allow us to reduce the errors produced by noisy signals, resulting in a square wave. … Read more
