Introduction: Harigan Sonar

This is an instructable for building a quirky sonar range finder.

Step 1: Build Sonar Range Finder

Connect ports:

TRIG-pin 9

ECHO-pin 10



Step 2: Code the Range Finder

Create code for use in the range finder.

Step 3: Run Diagnostic

Verify the code and fix all errors which occur.

Make sure the ports are connected to the right connectors.

Step 4: Record Values

Run the program.

Point the sonar at a surface.

Record values when the sonar is 2, 4, 6, 8, 10, and 12 inches away from the surface.