The SRF01 is a popular ultrasonic sensor used primarily for range finding applications. [Jaanus] discovered that they had a few flaws, including not working after being dropped. The faulty ones beg… ...

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The JSN-SR04T Waterproof Ultrasonic Sensor As well as the familiar ultrasonic ranging module HC-SR04, another one seen on online markets is the JSN-SR04 (and variants). The JSN-SR04 ultrasonic ranging ...

SkyBitz cargo sensors use three ultrasonic beams that can pick up objects 3-feet by 3-feet anywhere in a trailer. The devices are solar charged and designed to last the life of the trailer.

The sensor’s on-board microprocessor enables always-on operation for wake-up sensing applications. Figure 3 A block diagram of the CH-101 and CH-201 ultrasonic sensors (Image courtesy Reference 1) ...