Development of a Line following robot, which responds to light and sound, interfacing microphone, DC motors, LDR's, LED's, speaker with Arduino. Using MOSFET and BJT to amplify to drive the motors, and using LM358 as an audio amplifier.
https://www.my-mooc.com/en/mooc/electronic-interfaces-bridging-physical-uc-berkeleyx-ee40lx-0/
