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 × 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 5 meters. 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 |
