This small lidar-based distance sensor reports the distance of objects up to about 300 cm (120″) away with a pulsed signal similar to a hobby servo control signal. A digital microcontroller pin can be used to time the length of each high pulse, which encodes the measured distance. The sensor works over an input voltage range of 3.0 V to 5.5 V, and the 0.1″ pin spacing makes it easy to use with standard solderless breadboards and 0.1″ perfboards.

Note: The maximum range of 300 cm is only achievable for high-reflectance objects in good ambient conditions. Lower-reflectivity targets or poor ambient conditions will reduce the maximum range.

Dimensions

Size: 0.85″ × 0.35″ × 0.136″

Weight: 0.4 g

General Specifications

Resolution: 2 mm

Maximum Range: 300 cm¹

Update Rate: 30 Hz²

Minimum Operating Voltage: 3.0 V

Maximum Operating Voltage: 5.5 V

Connector: None (0.1″-pitch through-holes)

Supply Current: 30 mA³

Output Type: Digital pulse width

Identifying Markings

PCB Dev Codes: irs17a

Other PCB Markings: 0J13150

Notes
¹ Maximum range is only achievable for high-reflectance objects in good ambient conditions. Lower-reflectivity targets or poor ambient conditions will reduce the maximum range.
² Minimum update rate.
³ Typical average current draw when enabled; disabling via the EN pin reduces it to around 0.4 mA.