Having attended achievement 3 which is about content etiquette, you should understand that originality is very important as such your article should be free from all forms of plagiarism.

Unfortunately, your article appeared to have been copied from different sources, some of which would be shown below.

• https://www.pubnub.com/blog/arduino-board-comparisons-picking-the-right-board

• https://www.arduino.cc/en/Main/ArduinoBoardUno

• https://inventr.io/product/arduino-uno

• https://www.sparkfun.com/products/11061

• https://docs.arduino.cc/hardware/uno-rev3

Please do not repeat this mistake, repeated offenders risk being muted in the community. After developing your articles, you can use online tools to check for plagiarism. But don't spun internet content. In addition, only use copyright-free images in your articles.