Qwiic Chirp 101 Ultrasonic Rangefinder SMT
The Qwiic Chirp 101 is a time-of-flight (ToF) ultrasonic rangefinder breakout based on the TDK InvenSense CH101 sensor. Unlike traditional ultrasonic sensors, the CH101 can detect and range multiple objects within its field of view simultaneously, thanks to an integrated system-on-chip that processes echo data and provides digital range readings via I²C.
The breakout board includes voltage regulation and level shifting for the CH101-00ABR sensor, with Qwiic connectors for solderless I²C wiring. The area around the sensor is left clear for attaching an acoustic housing — TDK provides STEP files for several printable housing options compatible with high-resolution 3D printers.
Key Features
- CH101 ToF Ultrasonic Sensor – Time-of-flight ranging from 4 cm to 1.2 m
- Multi-Object Detection – Ranges multiple targets within the field of view simultaneously
- Integrated SoC – On-chip signal processing with digital I²C output
- Qwiic / I²C Interface – Solderless connection via polarised JST connectors
- 3D-Printable Housing – STEP files available from TDK for acoustic housings
- Voltage Regulation & Level Shifting – On-board for standalone CH101 sensor
Specifications
- Sensor – TDK InvenSense CH101-00ABR
- Range – 4 cm to 1.2 m
- Interface – I²C (Qwiic connectors)
- Sensing Method – Time-of-flight ultrasonic
Ideal For
- Short-range distance measurement
- Multi-object proximity detection
- Robotics and gesture sensing
- Compact IoT sensor nodes
Resources
The Qwiic Chirp 101 Ultrasonic Rangefinder SMT appears in the following collections:
