The Devantech SRF10 is an ultrasonic rangefinder with a I2C interface that combines a self-contained design with minimal power draw. Able to measure in both centimeters and inches, the ranging module can measure from 3cm to 600cm (1.2 inches to 19 feet).

Acroname MTM-IO-Serial module features adjustable rail GPIO ports, high current drivers, software controlled USB 2.0 hub and serial UART ports, all controlled by BrainStem technology.

The SRF02 is a single transducer ultrasonic rangefinder in a small footprint PCB. This Devantech ultrasonic sonar ranging module has I2C and Serial interfaces with a range of 16 cm to 6 m (about 6 inches to 19 feet)

Acroname MTM-IO-Serial module features adjustable rail GPIO ports, high current drivers, software controlled USB 2.0 hub and serial UART ports, all controlled by BrainStem technology.