The UNO can only supply 7-12V while the MEGA can supply 7-20V. So, if you need to use lower voltages for your project, the MEGA is a better choice. The UNO can only handle 5V while the MEGA can handle 5V, 3.3V, and 2.5V. So, if you don’t need the extra I/O pins or memory, it’s probably not worth paying the extra money for the MEGA. The MEGA is about twice the price of the UNO. This means that the MEGA can store more complex sketches and hold more variables in memory. MemoryĪs mentioned above, the MEGA has 8kB of SRAM and 256kb of flash memory while the UNO only has 2kB of SRAM and 32 kb of flash memory. This gives you a lot more I/O capabilities with the MEGA. The UNO only has 14 digital pins and 6 analog pins while the MEGA has 54 digital pins and 16 analog pins. This means that it can hold more variables in memory. The MEGA also has 8kB of SRAM compared to 2kB on the UNO. This means that you can store much more complex sketches on a MEGA than on an UNO. The key distinction between these two models is that the UNO only has 32 kb of flash memory for storing your sketches whereas the MEGA boasts 256kb. The Arduino UNO uses an ATmega328P microcontroller, whereas the MEGA employs an ATmega2560. Differences between Arduino Uno and Arduino Mega Use of Processor It’s the most popular option and will likely be supported by any tutorials or libraries you find. If you’re not sure which board to choose, go with the Uno. The Arduino Mega is better suited for projects that require more I/O pins or more memory. It’s affordable, has plenty of I/O pins, and is easy to use. With 54 digital input/output pins (15 of which can act as PWM outputs), 16 analog inputs, a USB connection, power jack, ICSP header, and reset button it also boasts way more memory than the Uno (256 KB vs 32KB).Īrduino Uno is the best choice for most projects. The Mega has tons of features, making it perfect for complex projects. It functions with the ATmega2560 microcontroller. The Arduino Mega is a brother product of the Uno, which was released in 2009. The Uno runs on the ATmega328P microcontroller and has 14 digital input/output pins (6 of which can double as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, USB connectivity, an external power jack, an ICSP header, and a reset button. It was released in 2011 and has been widely used by makers and hobbyists around the world. In this blog post, we will compare these two boards and help you decide which one is right for you! What Is Arduino Uno?Īrduino Uno is the most popular Arduino board. There are a few different Arduino boards available, but the two most popular ones are the Arduino Uno and the Arduino Mega. Arduino has become a popular platform for hobbyists and professionals alike.
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