This video describe how to write program on arduino IDE, what is the basic concept of program, how to compile and upload code to the micro-controller and see the test output.
See more microcontroller video: https://www.youtube.com/watch?v=KjV_a68EQd8&list=PLa23A5RubKGDcsRFWYGylCYu3n74GAC5m
Learn more programming: https://www.youtube.com/watch?v=bH3l71Y2CTQ&list=PLa23A5RubKGBhBI4vQnG_O5VQqGZKss_E
, https://i.ytimg.com/vi/ODcYy9uCRKs/hqdefault.jpg
source