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#Arduino uno pinout mapping serial
#Arduino uno pinout mapping software
#Arduino uno pinout mapping code

Uno is the popular Arduino due to its smaller size and compatibility with software and hardware in the system. Mega is used by engineers who are interested in hardcore electronics and it is not highly software compatible. The table below summarizes the comparisons between Arduino Mega vs Uno : Mega

#Arduino uno pinout mapping code

But the code written for Mega will not work in Uno because all the pins are not available in Uno as Mega. All the codes written for Uno will work with Mega due to the less number of pins and the pins availability in Mega.Since Uno is smaller in size, it helps to make easy and compact projects in the system than Mega. While if the project has big codes and it needs lots of memory space to store the inputs and if the user is not a beginner, it is good to go with Mega on the board. This makes it easy to understand the working of the system. Beginners who need less pins to work with and a board with less cost can select Uno as it is easy to handle and has less pins.Mega has a crystal oscillator and Uno has a ceramic resonator. Mega works with any other compatible shields while Uno is not compatible with the shields.

#Arduino uno pinout mapping serial

Uno does not have FTDI USB to Serial driver chip and hence it uses ATMega 16U2 that can work as a USB-to-Serial converter.

The components of Mega and Uno differ from each other.

When the program is up and running, the variables can be created and manipulated in Mega due to its SRAM space while it does not happen in Uno. Uno has 2kB SRAM space while Mega has 8kB SRAM space in the system.

Static Random Access Memory is used in Arduino systems.

If the code is large, it is better to go with Mega due to the memory. Mega has a flash memory of 256kB while that of Uno is 32kB.

Both Mega and Uno have a clock speed of 16MHz but the memory and storage space is different.

Both come with a through-hole to fit into the system. Among the digital pins, 15 have PWM in Mega and 6 in Uno. Uno has only 14 digital pins and 6 analog pins.

There are 54 digital pins used and 16 analog pins used in the system. Mega has a large number of pins among both.Both can be connected to the computer using Standard A/B USB cable that is a part of the microcontroller system. The price of Uno comes $20-$23 while Mega is costly. The size of Mega is 4” x 2.1” and Uno is 2.7” x 2.1” that is smaller than Mega.Let us discuss some key differences between Arduino Mega vs Uno in the following points: Key differences between Arduino Mega vs Uno

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