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OSEPP Uno R3 Plus VS Official Arduino UNO

What is the Difference between the OSEPP UNO R3 Plus and the Arduino UNO?

Since the first Arduino was introduced in 2005, novices and professionals alike have had an inexpensive and easy way to create devices that interact with their environment via sensors and actuators. Being an open-source development platform, the Arduino community has been presented with a massive selection of compatible hardware.

Here at Circuit Specialists, we are proud to be an active participating member of the Arduino community. Our team of in-house electronics geeks have successfully created a few different Arduino based projects and are anxious to produce even more.

We are currently one of a few local authorized distributors for OSEPP's line of excellent Arduino-compatible hardware. With identical technical specifications and nearly identical components, we believe that the OSEPP line is an excellent alternative to Arduino/Genuino products.

We're writing this blog to compare the OSEPP Uno R3 Plus Arduino-compatible board with the official lineup of Arduino single-board computers. We chose to include the Arduino Uno SMD edition as well, since it has a comparable board layout (with SMD).

“The Arduino Uno SMD is a version of the Arduino Uno, but uses a surface mount version of the Atmega328P instead of the through-hole version. This version was made in response to a shortage in supply of the through-hole Atmega328P. The board is based on the ATmega328 (datasheet).”

The board is identical to the PTH version of the Uno, but you won’t be able to remove the ATmega microcontroller without some hot-air (though this change shouldn’t affect most users). The mapping for the Atmega8, 168, and 328 is identical.

OSEPP Uno R3 Plus Specs

Microcontroller: ATmega328P Clock Speed: 16 MHz Flash Memory: 32 KB SRAM: 2 KB EEPROM: 1 KB Operating Voltage: 5V Input Voltage: 6-12 V Digital I/O Pin Count: 14 (including 6 for PWM output) Analog Input Pin Count: 6 Dimensions: 2.95” x 2.13” Power Source: USB or external DC power supply Price: $24.95 at Circuit Specialists Specs from: OSEPP

OSEPP Uno R3 Plus Front OSEPP Uno R3 Plus Back OSEPP Uno R3 Plus Atmel Mega328P Chip OSEPP Uno R3 Plus Parts Diagram

Arduino UNO R3 SMD Specs

Microcontroller: ATmega328P Clock Speed: 16 MHz Flash Memory: 32 KB SRAM: 2 KB EEPROM: 1 KB Operating Voltage: 5V Input Voltage: 7-12 V Digital I/O Pin Count: 14 (including 6 for PWM output) Analog Input Pin Count: 6 Dimensions: 2.7” x 2.1” Power Source: USB or external DC power supply Price: $29.95 from Sparkfun Specs from: Arduino

Arduino UNO SMD Front - Source: Arduino.cc Arduino UNO SMD Back - Source: Arduino.cc Arduino UNO SMD Atmel Mega328P Microporcessor Chip - Source: stevielaner

Arduino UNO R3 Specs

Microcontroller: ATmega328P-PU Clock Speed: 16 MHz Flash Memory: 32 KB SRAM: 2 KB EEPROM: 1 KB Operating Voltage: 5V Input Voltage: 7-12 V Digital I/O Pin Count: 14 (including 6 for PWM output) Analog Input Pin Count: 6 Dimensions: 2.7” x 2.1” Power Source: USB or external DC power supply Price: $24.95 from Arduino USA Specs from: Arduino

Arduino UNO R3 Front - Source: Arduino.cc Arduino UNO R3 Back - Source: Arduino.cc Arduino UNO R3 Atmel ATMEGA328P-PU

As you can see, the OSEPP stacks right up next to the genuine Arduino products, and uses all of the same programming software. With only a slight difference in size, people shopping for Arduino-compatible hardware can feel comfortable purchasing any of the OSEPP products offered by Circuit Specialists.

Note: In our research we did find some users were having a slight issue when uploading code to their devices. Luckily OSEPP provided a response and an easy fix to this issue: “If your sketch does not load properly using the Arduino Uno selection, please select Arduino Duemilanove or 'Nano w/ Atmega328.'” See the full tutorial for additional information.

And for those of you who love schematics…

OSEPP Uno R3 Plus Schematic - Source: OSEPP Arduino UNO SMD Edition Schematic - Source: Arduino.ccArduino UNO Rev3 Schematic - Source: Arduino.cc
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