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tatobari / hx711py

HX711 Python Library for Raspberry Pi.
Apache License 2.0
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Wiring the HX711 to a raspberry pi #6

Closed karl16 closed 7 years ago

karl16 commented 7 years ago

I am confused on how to attach from the HX711 to the raspberry pi. In the example code the line hx = HX711(5, 6) Makes me believe that DAT and CLK are connected to pin 5 and 6 respectfully. But which ones are pin 5 and 6? Because it seems like pin 5 is SCL and 6 is GND which I doubt is correct.

Thanks Karl

tatobari commented 7 years ago

Hey Karl, Dorry for the late response. 5 and 6 refer to the GPIOs 5 and 6 respectively.

raspberrypi1modelb-small

The above layout shows the pin numbers and their names. In this case, the DAT and CLK wires go on pins 29 (GPIO 5) and 31 (GPIO 6). You can, ofcourse, choose any GPIO's you want, just change the numbers when instantiating the class.

Let me know if I didn't make myself clear or if you have any other doubts.

Regards, Tato

karl16 commented 7 years ago

Awesome that was super helpful! Do you also know a good way to connect the load cell to the hx711 because I would rather not solder the wires directly to the hx711

Thanks Karl

tatobari commented 7 years ago

Hey, It's good practice to make the connection between the load cell and the hx711 as direct as possible. I just got Housing and Dupont connectors and tried to solder everything as tidy as possible.

Pardon me if I'm wrong but my guess is don't want to solder directly to the hx711 is because you think you might mess it up.

My advice is that you watch any of the many and very good YouTube videos on how to solder properly, get the correct tools and solder directly. Once you understand what to do, it's pretty easy.

Some tips:

(Remover: https://www.google.com.ar/search?q=solder+tin+remove&safe=off&client=ms-android-samsung&prmd=ivn&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj9893I-cLRAhXBDJAKHeLEDkgQ_AUIBygB&biw=360&bih=560#imgrc=_5jqVVpDw6yNIM%3A )

Regards, Tato

On Jan 14, 2017 21:35, "karl16" notifications@github.com wrote:

Awesome that was super helpful! Do you also know a good way to connect the load cell to the hx711 because I would rather not solder the wires directly to the hx711

Thanks Karl

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karl16 commented 7 years ago

Thank you very much! This has been beyond helpful!

Thanks Karl