HY SRF05 DATASHEET PDF

Technical Specification Introduction The SRF05 is an evolutionary step from the SRF04, and has been designed to increase flexibility, increase range, and to reduce costs still further. Range is increased from 3 meters to 4 meters. A new operating mode tying the mode pin to ground allows the SRF05 to use a single pin for both trigger and echo, thereby saving valuable pins on your controller. The SRF05 includes a small delay before the echo pulse to give slower controllers such as the Basic Stamp and Picaxe time to execute their pulse in commands. To use this mode, just leave the mode pin unconnected - the SRF05 has an internal pull up resistor on this pin. Mode 2 - Single pin for both Trigger and Echo This mode uses a single pin for both Trigger and Echo signals, and is designed to save valuable pins on embedded controllers.

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My backup HC-SR04 is definitely less reliable than the one I shipped out, but it still "works" for some value of "work". I have digital filters in place to try to determine if a reading is true or not, so this mitigates the inherent issues with the sensor.

My code base can also create a virtual sensor from N actual sensors, and I was planning to do this to work around the unreliability, since it seemed unlikely that two sensors would be unreliable at the same moment in time unless there are common environmental or power factors that cause this. If the HY-SRF05 is more reliable, then I can probably start trusting the data more and tune the digital filters to be more lenient. Is there any demand for virtual sensors as I described?

If so, I can work on turning what I have into a subclass of NewPing. It sounded like other people are using multiple sensors in non-redundant ways, and if the reliability solution really is "just buy an HR-SRF05" then maybe that effort would be wasted. I hope to test and send back ASAP. With properly working sensors, a virtual sensor from multiple sensors should not be required. Sensors that actually work are very reliable and give consistent and accurate readings all the time. Mine having a problem seem to work to around 50cm, then get all wonky.

Both have the same model number on them, but each are electronically different with different pinouts. Tim My platforms Arduino, Teensy 3. Lake Erie Monster Human.

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