Lab 6: Ultrasonic Sensor

In this lab, you will implement an ultrasonic distance sensor using the clock’s capture functionality and a corresponding ISR.

You will need to refer to the:

• ATMega32U4 Datasheet

• Ben's Board Schematic

• HC-SR04 Datasheet

Modify your existing work to display both the on-board and external temperatures simultaneously on the LCD, along with the distance in units of your choosing

Bonus: Calculate the speed of sound based on the measured temperature, for a more accurate distance measurement!

Example LCD output:

Distance  5cm
Indoor   25C
Outdoor  10C