9.13 Lab Exercises

Lab assignment #4

Modify your CARDEMO#1 system by replacing the Op Amp comparator circuit with your ATmega328p/Arduino Uno.  Submit a video demonstrating that your car moves forward under bright light and remains motionless under ambient light. Your car should have a green LED glowing under bright light and a red LED glowing under ambient light.

Lab assignment #5 (This assignment is optional. If you submit this and score higher than one of your  previous lab assignments, this score will replace the lower score.)

Build a system to detect object distance using your Arduino Uno and infrasound sensor. Display round-trip echo delay and distance on your serial monitor.  Test the system with objects placed between 0 and 5 feet from your sensor. Your system should cause an LED to glow when objects are detected at distances between 1 and 3 feet.