Chirp’s MEMS based ultrasonic technology leverages a Time-of-Flight (ToF) range sensor with a power-efficient digital signal processor (DSP) ASIC in a 3.5 mm x 3.5 mm package. The sensor handles a variety of ultrasonic signal-processing functions and algorithms, enabling customers flexible industrial design options for a broad range of use-case scenarios, including range-finding, presence and proximity sensing, object-detection and avoidance, and position-tracking.
Complementing Chirp’s miniature CH101 ultrasonic ToF sensor product, the CH201 provides accurate range measurements to targets at distances up to 5m. Using ultrasonic measurements, the sensor works in any lighting conditions, including full sunlight to complete darkness, and provides millimeter-accurate range measurements independent of the target’s color and optical transparency. The sensor’s wide Field-of-View (FoV) can be customized and enables simultaneous range measurements to multiple objects in its FoV.
| Product | Operation | Package Size (mm) | Range (m) | Current Consumption (1sample/s, 1m Range) | Interface | Comments | Purchase |
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CH201 | Pulse-Echo | 3.5 × 3.5 × 1.26, 8-pin LGA | Up to 5 | 13.5uA | I²C | Field-of-View (FoV): Configurable Up to 180° |
CH201 Applications |
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Presence Detection | Smart Locks | Smart Home & IoT | Drones |
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Ultra-low power and low latency Ultrasonic ToF sensors detect presence and minor motion under any lighting condition | Always-on battery powered smart locks utilize ultra-low power Ultrasonic ToF sensors to enable feature rich smart locks | Compact ultrasonic ToF sensors enable presence detection in any lighting condition | Compact and light weight ultrasonic ToF sensors enable range finding for obstacle avoidance and landing under any environmental condition |
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Additional Presence Detection Resources: | ||||||||||
Datasheet |
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App Notes |
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Firmware Support |
