Hx710

Have a question about this project? Sign up for a free GitHub account to open hx710 issue and contact its maintainers and the community, hx710. Already on GitHub?

I'm the type that wants to understand how a system works rather than blindly copy existing code or a library that I can't understand. So that others may benefit here's some gereric code -. Please, could some people who have sucessfully got one of these to work read the comments and tell me if everything is correctly documented. Additionally - many of the clone modules use counterfeit chips, sometimes with slightly different names and different pin outs, but they all respond to the Hx comms commands correctly. This would seem to support the claim that the chip can be run from as little as 2. Can you please post a circuit diagram?

Hx710

According to the datasheet it can be powered by a 3. The datasheet indicates this device can be run from a 3. The datasheet provides an example circuit demonstrating how this ADC can be used to measure weight from a scale sensor:. To get a better idea of how this sensor works it would be helpful to locate its product number. I had a hunch it was beneath the part so I desoldered it, and indeed I found part identification information. The pressure sensor is labeled as a PSGS but unfortunately I struggled to find a quality datasheet for it. I did find some now-deleted images from an AliExpress listing showing the differences between the base model and the R and S variants. This seems to be a fairly standard differential pressure sensor design using a pair of voltage dividers where the pressure is a function of the difference in voltage at the two mid-points a Wheatstone bridge. I used a multimeter to determine the resistor network inside this pressure sensor. Interestingly I found that pin 4 was not connected, which is opposite of many other designs I find online where pin 5 is not connected. It is critically important to get this right if your goal is to design a PCB around this component. I also question if people are getting confused and reporting the mirror image pinout because they mistake the vent hole for the registration marker. Either way, I made the following diagram which I found helpful:.

But the translation from the original Chinese to English is I did find some now-deleted hx710 from an AliExpress listing showing the differences between the base model and the R and S variants, hx710.

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I am using HXb pressure sensor with arduino. The range of pressure sensor is 0 - mbar. Like others I am using HX library with the setup. Does anyone has any reference code for the pressure sensor system. The readings I am getting are not clear and not consistent. As per my understanding , the sensor in atmosphere should be saturated since its above its rated range.

Hx710

The HXB Air Pressure Sensor Module monitors the air's pressure in the range of 0 to 40 kilopascals kPa and turns it into an electrical impulse which microcontrollers or other electrical gadgets can interpret and read. It is a common and frequently utilized sensor in a wide range of applications that demand precise pressure sensing, including weather monitoring, industrial control systems, and medical equipment. The HXB device is a piezoresistive pressure sensor which determines pressure by detecting variations in electrical resistance produced by pressure-induced displacement of a sensing element. The module is made up of a pressure sensing element, a signal conditioning circuit, and an output amplifier. The sensor chip is a tiny, thin-film device having a diaphragm and piezoresistive components. The signal conditioning circuit boosts and purifies the electrical signal from the sensing element, and the output amplifier generates a voltage or current proportionate to the pressure detected by the sensor. The HXB sensor module offers several advantages that enable it to be a good option for a wide range of applications. These are some examples:. Broad pressure range: The module can detect pressure from 0 to 40kPa, making it appropriate for a broad range of low-pressure sensing applications.

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Design tips for a resistive-bridge pressure sensor in industrial process-control systems - Texas Instruments application note. Some clone chips wake up in the mode they were in when put to sleep; check your datasheets! Additionally - many of the clone modules use counterfeit chips, sometimes with slightly different names and different pin outs, but they all respond to the Hx comms commands correctly. Differential pressure sensors - Article about the topic which includes a good example of an instrumentation amplifier. Pressure Sensor Guide by T. Can you please post a circuit diagram? I did find some now-deleted images from an AliExpress listing showing the differences between the base model and the R and S variants. New issue. Code on this page does not use this library, but others may find it helpful. So that others may benefit here's some gereric code -. Sign up for free to join this conversation on GitHub. The datasheet indicates gain is fixed at and cannot be changed in software.

According to the datasheet it can be powered by a 3. The datasheet indicates this device can be run from a 3.

This would seem to support the claim that the chip can be run from as little as 2. It will wait in this state until the microcontroller switches the Control line to high. This topic was automatically closed days after the last reply. Reload to refresh your session. Have you tried your code in the real world? New issue. The Hx has an extra analog input and additional control pins, but the basic data reading is the same. I found that many libraries use the 10 Hz mode by default, whereas I certainly prefer the 40 Hz mode. Update : I received an email from somebody offering additional information about this component:. Design tips for a resistive-bridge pressure sensor in industrial process-control systems - Texas Instruments application note. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. But the translation from the original Chinese to English is