Qwiic Chirp 101 Ultrasonic Rangefinder SMT (SPX-17271)

The CH101 from TDK InvenSense is a ToF (time-of-flight) ultrasonic rangefinder with a range of 4 centimeters to 1.2 meters. What sets the CH101 apart from other ultrasonic sensors that we've seen in the past is that it's capable of ranging multiple objects within its field-of-view simultaneously. This is made possible by an integrated system-on-chip that crunches the numbers and then provides digital range readings via I²C.

Our Qwiic breakout provides voltage regulation and level shifting for the standalone CH101-00ABR sensor. Space around the sensor is left clear for attaching the acoustic housing of your choice. TDK has provided .STEP files for several acoustic housing options that you can print with a reasonably high resolution 3D printer. There is not yet an Arduino compatible library for this sensor, however there is an API and extensive documentation available from TDK.

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Features:

• Operating range from 4 cm to 1.2m
• Sample rate up to 100 samples/sec
• I²C Fast-Mode compatible interface, data rates up to 400 kbps
• Multi-object detection

Documents:

• Schematic
• Eagle Files
• CH101 Datasheet
• MOD-CH101 Datasheet
• SonicLib Programmer's Guide
• TDK Documentation Page
• Github Repo

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