Ultrasonics

• DEVICES: ultrasonic rangefinder sensor.
• THEORY: range finding, pulse measurement
• TOOLS: use oscilloscope or logic analyzer to observe/measure ranging
• HANDS-ON: Connect an ultrasonic rangefinder to the protoshield (power, ground, switch to trigger).
  • Use Arduino to trigger ranging and measure result
  • Make an electronic tape measure
  • Make a Theramin.