Data Sheet
Sensor Documentation         Modern Robotics, Inc. 
Version 1.4.3    22 
4.3.   Range Sensor (45-2008) 
The Range Sensor combines ultrasonic and optical measuring elements to obtain a 
reading between 1cm and 255cm. The ultrasonic accurately measures distance to a 
target up to 255cm away, but it losses accuracy if the object is closer than 5cm. This is 
where the optical sensor comes into play as it can measure from 1cm out to about 7cm. 
The target shape and surface material will influence to detectable range. 
http://modernroboticsinc.com/range-sensor 
Sensor Type: Four Wire I2C Sensor 
Default I2C Address: 0x28 
Sensor ID Code: 0x55 
Dimensions: 56 mm x 32 mm x 17 mm 
Mounting Holes: 48 mm x 24 mm 
  Power: 5 V DC, 20 mA max. 
  Signal Logic Levels: Logic 0 – 0 V, Logic 1 – 5 V 
I2C Bus Speed: 100 kHz max 
I2C Address Change Option: yes 










