The Grove ultrasonic ranger offers a really simple way to connect into an Arduino-compatible environment (especially when using a Seeed Grove base shield). There may be more “intelligent” and enhanced ultrasonic rangers on the market, but this unit is a bargain in performance, cost, and ease-of-implementation.

Specifications

• Grove compatible interface
• 3-400cm (1.25-157″) range
• 1cm (0.4″) resolution
• PWM output (Arduino library support is a simple “ultrasonic.MeasureInInches();” call)
• 42kHz frequency
• Maximum 10Hz sample frequency recommended
• 30 degree detection cone
• 3.3-5VDC
• Arduino library ready(SeeedStudios SULI compatible)

Links

• Ultrasonic Ranger Video
• Ultrasonic Ranger Wiki
• Github – Grove_Ultrasonic_Ranger