This course provides you the overall idea about the arduino development board with implementation of various projects on arduino IDE and on online tool tinkercad. This course encapsulates four modules consisting of introduction part, demonstration of hardware and software, interfacing various sensors, arduino programming and implementation of various projects. The introduction module covers the basic of arduino, what is arduino its information. The importance of arduino is also covered and why to use it. The arduino board is a development board to develop a prototype of any application, the overview of entire board is also covered. Second module contains the demonstration of arduino board and its IDE (Integrated Environment Development) to write, compile and upload the program to the board. Due to covid-19 pandemic situation, everyone may not have the board so, the online simulation tool i.e. Tinkercad is also demonstrated. Learner can easily learn arduino hardware and its programming without having the board. The third module is related to sensor interface to arduino board and its programming. As the problem statement can be solved by formulating it in the blocks and sensor plays very important role to act as input to any application for sensing data from physical world. The fourth module is of implementation of various projects by interfacing sensors and actuators to the arduino board.