This chapter is an optional chapter. We are going to introduce several advanced sensors, including camera, 9-DOF IMU, etc.. Students who take our Arduino course on-site **may have a chance** to learn ...

In this chapter, we are going to use several examples to demonstrate how to feel the magnetic fields by hall or reed sensors.

I cannot get over how easy it is to get code running on an Arduino, allowing me to write the code to try to connect to a 20 character x 4 line LCD (wearing an I2C-to-parallel ‘backpack). Update: Part3 ...