The CH101 is a miniature, ultra-low power ultrasonic Time-of-Flight (ToF) range sensor. Based on Chirp’s patented MEMS technology, the CH101 is a system-in-package that integrates a PMUT (piezoelectric micromachined ultrasonic transducer) together with an ultra-low power SoC (system on chip) in a miniature, reflowable package. The SoC runs Chirp’s advanced ultrasonic DSP algorithms and includes an integrated microcontroller that provides digital range readings via I²C.
Complementing Chirp’s other ultrasonic ToF sensor products, the CH-101 provides accurate range measurements to targets at distances up to 1.2m. Using ultrasonic pulse-echo measurements, the sensor works in any lighting conditions, including full sunlight, and provides millimeter-accurate range measurements independent of the target’s color and optical transparency. The sensor’s wide Field-of-View (FoV) enables simultaneous range measurements to multiple objects in the FoV.