One of the limits of the Arduino Uno is that it doesn't have a DAC. The external MCP4725 module is thus an interesting extension.
Normally we power our circuits with DC. For experimenting with rectifiers, however, we need an AC source. So, let's build one!
Christmas is near. It's time to finish our LED Christmas tree project and add the electronics.
Christmas is on its way and so is our LED Christmas tree project. In the second part of our project, we build the wooden tree itself.
It's Christmas time again. Let's build something Christmassy like a programmable LED Christmas tree.
Interested in sensing environmental data? Let's have a look at another humidity and temperature sensor: the HTU21D.
Do you want to measure humidity and temperature for one of your projects? The DHT11 and DHT22 are a popular choice.
LDRs are an easy solution to react to brightness changes. Let's look at corresponding Arduino modules.
Want an easy-to-use digital temperature sensor? The DS18B20 is a popular alternative to analog temperature modules.
Do you want to trigger an action once the temperature crosses certain point? Then you are in need of a temperature threshold module.
Do you need to know the temperature for one of your Arduino projects? In this tutorial we learn how to use analog temperature modules.
This is the end of my Arduino Introduction Series. It's time to sum everything up and look ahead!
Sometimes you want to display measurements without using the serial monitor. In this tutorial we learn how to use an LCD for this purpose.
Ever wondered how IR remote controls work? Let's look into it and use one to control an LED connected to our Arduino.
Time for some music! In this tutorial we create sounds using a piezo speaker and our Arduino Uno.
How can you change the brightness of an LED? Let's look into Pulse Width Modulation.
Welcome to the analog world! This time we will create a twilight switch using a LDR and the analog input of our Arduino.
Let's discover the serial port and learn how to send messages to the computer and receive configuration values.
How is it possible to wait, and check for a button press at the same time? Let's explore one of the solutions to this problem!
Let's make our traffic light a bit more interesting by adding a button to it. Ready to learn how you can use a digital input of your Arduino for this?
