Maxbotix Ultrasonic Rangefinder - LV-EZ3

The Maxbotix LV‑EZ3 is a compact ultrasonic sensor that measures how far away objects are, from a few inches up to about 6.45 meters (254 inches). It’s especially useful when you need a robust, no‑contact way to sense obstacles, distances, or levels—like automatically adjusting a camera tilt based on how far someone stands from it, or triggering a notification when a bin is nearly full. The LV‑EZ3 is easy to connect to microcontrollers because it already processes the sonar data and delivers clean distance outputs in three different formats.

Key Specs

• Measurement range: 0–254 inches (0–6.45 m)
• Resolution: 1 inch (2.54 cm)
• Blank range: 0–6 inches (reported as 6 inches)
• Output formats:
  • Pulse width (PWM)
  • Analog voltage (≈Vcc/512 volts per inch)
  • Serial digital (UART, 9600 baud)
• Supply voltage: Typically 2.7–5.5 V (check datasheet for your exact variant)
• Current: Usually around a few mA during measurement cycles
• Beam angle: About ±15° (medium narrow beam)
• Package: Small cylindrical sensor with 3 wires (VCC, GND, Output)

Note: The blank zone (0–6 inches) must be accounted for in your project; anything within that range will read as 6 inches. For best accuracy, place the sensor in a clean line of sight, away from edges and reflective surfaces, and avoid rapid repeated triggers so the sensor has time to settle between readings.

Disclaimer: The images shown are for illustration purposes only and may not be an exact match.