Arduino has become a staple in the world of DIY electronics, and for good reason. It’s an open-source platform that makes it easy to create custom electronics projects. The two most commonly-purchased Arduino boards are the Leonardo and the Uno. So, which one should you choose? In this article, we will compare the two boards and help you decide which one is right for you.
What Is Arduino Leonardo?
It’s intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.
The Arduino Leonardo is a powerful, versatile board that has everything you need for your next project. It’s perfect if power efficiency and ease of use are crucial factors in what tools will be used during the development process – because this little guy packs some serious tech punch without weighing down on either front end! [1]
What Is Arduino Uno?
The Uno is a great starting point for those looking to program their first injury using an arduino. It has all of the basic tools needed, including 6 digital pins that can be used as PWM outputs and 8 MHz crystal oscillator which helps keep things running smoothly without any jittery behavior from950MHz speeds!
There’s also a micro USB connection so you don’t need another power source nearby or extra wires cluttering up your workspace – just plug in an appropriately sized device when prompted by Windows operating system software automatically detected accordingly during the setup process.
The Arduino Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega8U2 programmed as a USB-to-serial converter. [2]
Differences Between Arduino Leonardo and Arduino Uno
Microcontroller
The Arduino Leonardo has an ATmega32u4 microcontroller, and the Arduino Uno sports an ATmega328P microcontroller.
Operating Voltage
The Arduino Leonardo and Uno both operate at 5 volts.
Input Voltage
Both the Arduino Leonardo and Uno require an input voltage of 7-12 V.
Digital I/O Pins
The Arduino Leonardo has double the amount of digital I/O pins than the Arduino Uno, coming in at 20.
Analog Input Pins
The advantage that the Arduino Leonardo has over the Arduino Uno is that it has 12 analog input pins while the Uno only has 6.
PWM Output Pins
The Arduino Leonardo has 7 PWM output pins, while the Arduino Uno also has 6 PWM output pins.
Clock Speed
The Arduino Leonardo has a clock speed of 16 MHz, while the Arduino Uno has a clock speed of 8 MHz. [3]
USB Connection
The Arduino Leonardo uses a micro USB connection, while the Arduino Uno uses a standard USB connection.
Size
The Arduino Leonardo is smaller than the Arduino Uno.
Price
The Arduino Leonardo is more expensive than the Arduino Uno.
Size of Flesh
The Leonardo has less external components than the Uno.
SRAM
The Arduino Leonardo has 2.5 KB of SRAM, while the Arduino Uno has 2 KB of SRAM.
EEPROM
The Arduino Leonardo has 32 KB of EEPROM, while the Arduino Uno has 1 KB of EEPROM.
Reset Button
The Arduino Leonardo has a reset button, while the Arduino Uno does not have a reset button. [4]
Popularity and User-Friendly Design
It’s loved by beginners and professionals for its user-friendly design and wide range of applications. The Uno, on the other hand, is a bit more versatile. The wider range of projects it can be used for makes it a better choice for experienced makers.
When it comes to popularity, Leonardo definitely takes the cake. It’s one of the most popular Arduino boards available, and for good reason. The Leonardo is easy to use and has a wide range of applications, making it perfect for both beginners and experienced makers alike. If you’re looking for an Arduino board that’s user-friendly and versatile, the Leonardo is a great choice.
The Uno is also a popular Arduino board, but it’s more versatile than the Leonardo. The Uno can be used for a wider range of projects, making it a better choice for experienced makers. If you’re looking for an Arduino board that’s versatile and can be used for more complex projects, the Uno is a great choice.
Sustainability and Compatibility
The two Arduino models are not created equal when it comes to sustainability and compatibility. The Leonardo is the clear winner in this department, as it is fully compatible with both Windows and Mac operating systems. It also has a much longer lifespan than the Uno, thanks to its Atmel SAM3X8E processor. This processor is designed for industrial applications, which means that it can withstand more wear and tear than the Uno’s ATMEGA328P processor.
The Uno, on the other hand, requires an external USB-to-Serial converter in order to connect to a computer. This can be a bit of a pain, especially if you’re not used to working with electronics.
Suitable Projects
Now that we’ve taken a look at the major differences between the Arduino Leonardo and Uno, let’s talk about which projects each board is best suited for.
The Uno is the perfect choice for beginners, as it is relatively inexpensive and relatively easy to use. Additionally, the Uno is a great choice for projects that don’t require a lot of processing power, such as simple LED projects.
The Leonardo, on the other hand, is best suited for more complex projects that require a bit more processing power. It’s also a good choice for projects that need to be able to interface with a computer or other devices via USB.
If you’re not sure which board is right for your project, we recommend starting with the Uno. It’s a great all-around board that can be used for a wide variety of projects. Once you get more experience with Arduino, you can always upgrade to the Leonardo (or another board) if you need more processing power or other features.
Pros and Cons of Arduino Leonardo
Now that we’ve gone over the major differences between the Arduino Leonardo and Uno, let’s take a look at the pros and cons of each board.
Arduino Leonardo Pros:
- Fully compatible with Windows and Mac operating systems
- Longer lifespan thanks to industrial-grade processor
- On-board USB interface makes it easy to connect to a computer
Arduino Leonardo Cons:
- More expensive than the Uno
- Not as well suited for beginner projects
Arduino Uno Pros:
- Inexpensive
- Easy to use
- Great for simple projects that don’t require a lot of processing power
Arduino Uno Cons:
- Requires an external USB-to-Serial converter to connect to a computer
- Not as powerful as the Leonardo
Why is Arduino Not Used in Industry?
Arduino is not typically used in industry because it is not as powerful as other industrial controllers. Additionally, Arduino boards are not designed for industrial applications and can be damaged by exposure to extreme temperatures or other harsh conditions. However, there are some companies that are beginning to use Arduino boards in industrial applications. It remains to be seen whether or not Arduino will gain widespread adoption in the industrial sector.
SBC vs Microcontroller
When it comes to choosing between an SBC and a microcontroller, there are a few things you need to consider. One of the most important factors is price. SBCs tend to be more expensive than microcontrollers, so if you’re on a budget, a microcontroller is probably the way to go.
Another important factor to consider is power consumption. SBCs generally require more power than microcontrollers, so if you’re working on a battery-powered project, a microcontroller is probably the better choice.
Finally, you need to think about the size of your project. If you’re working on a large project with lots of sensors and peripherals, an SBC is probably a better choice. However, if you’re working on a small project that doesn’t require many bells and whistles, a microcontroller is probably all you need. [5]
How Does an SBC Work?
This includes a processor, memory, storage, and input/output (I/O) ports. SBCs are typically used for embedded applications, such as industrial control systems or digital signage.
How Does a Microcontroller Work?
Unlike an SBC, a microcontroller does not include any onboard storage. This means that it can only run programs that are stored in its memory. Microcontrollers are typically used for simple applications that don’t require a lot of processing power or storage, such as remote controls or security systems.
How to Set Up a Microcontroller?
Now that you know a bit more about the Arduino Leonardo and the Uno, it’s time to get started with setting up your own microcontroller. Here’s a quick guide on how to set up an Arduino Leonardo or an Arduino Uno:
- If you haven’t already, download and install the latest version of the Arduino IDE.
- Connect your Arduino board to your computer via the USB cable.
- In the Arduino IDE, go to File > Preferences.
- Enter the following URL into the “Additional Board Manager URLs” field: http://arduino.cc/en/main/software
- Press the “OK” button.
- Go to Tools > Board > Boards Manager.
- Search for and select “Arduino AVR Boards”.
- Click the “Install” button.
- Once the installation is complete, go to Tools > Board and select your Arduino board from the list of boards.
- You’re now ready to start programming your Arduino board!
Can Arduino Work Without a PC?
Arduino boards can be used without a PC by using an external power supply or batteries. The Arduino Uno and Leonardo boards have a power jack where you can connect an external power supply. The power supply should be 7-12 volts and provide at least 500mA of current.
You can also use batteries to power your Arduino board. For the Uno and Leonardo boards, you will need four AA batteries. For the Micro board, you will need two AA batteries.
Once you have your power source, simply connect it to the Arduino board via the power jack or battery terminals. You’re now ready to start programming your Arduino board without a PC! [6]
Types of SBCs
When it comes to single-board computers (SBCs), there are a few different types that you might encounter.
The most common type is the microcontroller, which is a single integrated circuit that contains all of the necessary components for a basic computer system. This includes a CPU, memory, input/output (I/O) ports, and oftentimes some form of programmable read-only memory (PROM). Microcontrollers are often used in consumer electronics, embedded systems, and industrial applications.
Another common type of SBC is the microprocessor, which is similar to a microcontroller but typically has more processing power and memory. Microprocessors are used in personal computers (PCs), servers, and supercomputers.
Advantages of SBCs
Smaller Size: One advantage of an SBC is that it’s small. This can be beneficial if you’re working on a project where size and weight matter, such as a wearable device.
Low Power Consumption: SBCs also tend to be more power-efficient than their microcontroller counterparts. This is important if you’re working on a project that needs to run for a long time on battery power, such as a solar-powered sensor network.
More Connectivity Options: SBCs offer more ports and higher speeds for connectivity than microcontrollers. This can be helpful if you need to interface with devices that require a lot of data transfer, such as video cameras or hard drives.
Disadvantages of SBCs
Higher Price: The increased functionality of an SBC comes at a cost — they’re typically more expensive than microcontrollers.
Increased Complexity: SBCs also tend to be more complex than microcontrollers, which can make them harder to use for some applications.
Advantages of the Microcontrollers
Ease of Use: Microcontrollers are typically much easier to use than SBCs. This is because they have less built-in functionality, so there are fewer things that can go wrong.
Low Cost: Microcontrollers are also much cheaper than SBCs. This is because they’re designed for simpler applications and don’t need the extra features that SBCs provide.
Flexibility: Microcontrollers are also more flexible than SBCs. This is because they can be programmed to do just about anything you want them to do. If you can imagine it, chances are you can probably program a microcontroller to do it.
Disadvantages of the Microcontrollers
Limited Connectivity: Microcontrollers have limited connectivity compared to SBCs. This means that they can only interface with a few devices at a time.
Lower Speed: Microcontrollers also tend to be slower than SBCs. This is because they have less processing power and memory.
So, which one should you choose? It really depends on your application. If you need something small, low-power, and easy to use, then a microcontroller is probably your best bet. If you need something with more functionality and flexibility, then an SBC is probably a better choice.
Alternatives to Arduino Products
If you’re not interested in using an Arduino product, there are a few other options available.
Raspberry Pi: The Raspberry Pi is a small computer that can be used for a variety of applications. It’s more powerful than a microcontroller, but it’s still small and low-power.
BeagleBone: The BeagleBone is another small computer that’s similar to the Raspberry Pi. It has more processing power and memory than the Raspberry Pi, but it’s still fairly small and low-power.
Intel Edison: The Intel Edison is a tiny computer that’s designed for wearables and other small devices. It has Wi-Fi and Bluetooth built-in, and it’s very low-power.
So, there you have it! That’s a brief overview of the difference between Arduino Leonardo vs. Uno products. If you’re still not sure which one is right for your project, feel free to contact us and we’ll be happy to help you out.
FAQ
Are Arduino Uno and Leonardo the same?
However, there are some key differences between the two boards.The most obvious difference is that the Leonardo has built-in USB capabilities, while the Uno does not. This means that the Leonardo can be used as a USB HID device, such as a keyboard or mouse, without the need for an external USB controller. The Uno cannot be used in this way. Another difference is that the Leonardo has 20 digital input/output (I/O) pins, while the Uno only has 14. This means that Leonardo can support more complex projects that require more I/O pins. Finally, the Leonardo has a slightly different form factor than the Uno, with a shorter and wider body.
What is special about Arduino Leonardo?
It has 20 digital input/output (I/O) pins, a micro USB connection, a power jack, an ICSP header, and a reset button. It is also compatible with most shields designed for the Arduino Uno. The Arduino Leonardo was released in October 2012. It is similar to the Arduino Uno, but it uses a different microcontroller – the ATmega32u4.
Are Arduino UNO shields compatible with Leonardo?
Yes, most Arduino Uno shields are compatible with the Leonardo. However, some shields may not work properly because of the different form factor or the different number of I/O pins.
What is the price difference between Uno and Leonardo?
The price difference between the Uno and Leonardo varies depending on where you purchase them. Generally speaking, the Uno is less expensive than the Leonardo. This is because the Leonardo has built-in USB capabilities, which add to the cost of the board.
Is Arduino Leonardo discontinued?
No, the Arduino Leonardo is not discontinued. It is still being manufactured and sold by Arduino.
What projects can be made using an Arduino Leonardo?
Arduino Leonardo can be used for a variety of different projects. Some examples include:
- USB HID devices such as keyboards and mice
- Complex projects that require more I/O pins
- Any project that can be made with an Arduino Uno.
Which Arduino should I buy as a beginner?
If you are a beginner, we recommend purchasing the Arduino Uno. It is less expensive than the Leonardo and it does not have built-in USB capabilities, which may be confusing for beginners. Once you have a solid understanding of how the Arduino works, you can then move on to more complex projects that require Leonardo’s extra features.
How to choose a microcontroller?
When it comes to microcontrollers, there are a few main criteria you’ll want to consider:
- Price
- Size and weight
- I/O capabilities (analog, digital, communication protocols)
- Processing power
- Operating voltage
You’ll also want to take into account what sorts of projects you’ll be working on. If you’re just getting started with electronics, a more inexpensive and simple board like the Uno might be a good place to start. If you’re looking to do more complex projects that require greater processing power and more I/O pins, you might want to consider investing in a Leonardo.
How to secure a microcontroller?
When it comes to securing a microcontroller, there are a few things you’ll want to keep in mind:
- Physical security
- Software security
- Data security
Physical security is important because it helps to prevent tampering and unauthorized access to your device. This can be accomplished by using enclosures or housing your device in a secure location. Software security is important because it helps to prevent unauthorized code execution and data breaches. This can be accomplished by using encryption and authentication techniques. Data security is important because it helps to protect the confidentiality and integrity of your data. This can be accomplished by using encryption and hashing algorithms.
Is Arduino coding difficult?
No, Arduino coding is not difficult. In fact, it is one of the easiest programming languages to learn. The Arduino IDE (integrated development environment) is designed to be user-friendly and easy to use. There are also many online resources, such as tutorials and forums, that can help you learn how to code for the Arduino.
Is Arduino written in C or C++?
The Arduino IDE uses a programming language based on C and C++. However, it is not necessary to have prior experience with these languages in order to use the Arduino IDE. The Arduino IDE comes with a built-in editor that will help you write your code.
What is the difference between an Arduino and a microcontroller?
An Arduino is a type of microcontroller. A microcontroller is a small computer that can be used to control electronic devices. The Arduino is one of the most popular types of microcontrollers on the market. It is easy to use and has a wide range of features.
Useful Video: SparkFun Arduino Comparison Guide
Conclusion
So, what’s the difference between the Arduino Leonardo and the Uno? The Arduino Leonardo is slightly cheaper, has more pins, and is more powerful. However, the Uno is more popular and easier to find. Whichever you choose, you can’t go wrong with either board!
References
- https://www.mouser.com/new/arduino/arduino-leonardo/
- https://docs.arduino.cc/hardware/uno-rev3
- https://docs.arduino.cc/hardware/leonardo
- https://support.arduino.cc/hc/en-us/articles/5779192727068-Reset-your-board
- https://www.makeuseof.com/microcontrollers-single-board-computer-differences/
- https://support.arduino.cc/hc/en-us/articles/360018922259-What-power-supply-can-I-use-with-my-Arduino-board-