Hx710

I'm the type that wants to understand how a system works rather than hx710 copy existing code or a library that I can't understand, hx710. So that others may benefit here's some gereric code .

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. This library easily works with the HX for basic functionality.

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:.

More frustratingly, code in many libraries refer to this as gainhx710 is incorrect. Interestingly I found that pin 4 was not connected, hx710, which is opposite of many other designs I find online where pin 5 is hx710 connected.

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A load cell converts a force into an electrical signal that can be measured. The electrical signal changes proportionally to the force applied. There are different types of load cells: strain gauges, pneumatic, and hydraulic. Strain gauge load cells are composed of a metal bar with attached strain gauges under the white glue in the picture above. A strain gauge is an electrical sensor that measures force or strain on an object. The change of the resistance is proportional to the load applied, which allows us to calculate the weight of objects. Usually, load cells have four strain gauges hooked up in a Wheatstone bridge as shown below that allow us to get accurate resistance measurements. For a more detailed explanation of how strain gauges work, read this article.

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:.

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November 15, Data transfer is exactly the same. Can you please post a circuit diagram? Differential pressure sensors - Article about the topic which includes a good example of an instrumentation amplifier. Summary of line states - Mode Code on this page does not use this library, but others may find it helpful. One ends on 'a', the other on 'b'. Thanks a lot All reactions. Feedback Source Contact. This would seem to support the claim that the chip can be run from as little as 2. Control is low and Data is high during conversion. Although some libraries are available which facilitate interacting with the HX, here I engage with it discretely to convey each step of the conversion and measurement process. Sign in to your account. At the next wake up the Hx will be in its default mode of converting the external inputs 10 times a second. Both Control and Data are low when the conversion is completed and valid data is available.

I am using HXb pressure sensor with arduino.

Sign up for free to join this conversation on GitHub. You signed out in another tab or window. Although some libraries are available which facilitate interacting with the HX, here I engage with it discretely to convey each step of the conversion and measurement process. Or what doesn't it do? I did find some now-deleted images from an AliExpress listing showing the differences between the base model and the R and S variants. Both Control and Data are high during sleep. You should have some code that JUST reads the sensor, and outputs to serial monitor. You switched accounts on another tab or window. Pressure Sensor Guide by T. This would seem to support the claim that the chip can be run from as little as 2.