Do you need C++ for Arduino? You need to be proficient in C or C++ before you attempt anything for real on an Arduino. Blinking lights is fine, beyond that, good luck. Learn C or C++ (preferred as it is newer) on what you have, then start using the Arduino. Eclipse or Microsoft Visual Studio Community are both free and support both languages.
How long does it take to learn Arduino programming? Arduino is a platform to learn about microcontroller and it is very much suited to beginners before moving to other microcontrollers. To gain a good grasp of Arduino it may take like 2–3 months or even more according to situations. Thereafter you need to keep learning and interact with Arduino community.
What should I learn before Arduino? Before learning Arduino you need to have knowledge of basic programming. You can choose any language like C, C++ or Java. And apart from that you need to have basic idea about electronic devices like which part it is?, How it works? etc.
Is Arduino a microcontroller? Arduino consists of both a physical programmable circuit board (often referred to as a microcontroller) and a piece of software, or IDE (Integrated Development Environment) that runs on your computer, used to write and upload computer code to the physical board.