How to connect 6 Load cell with different output.

Hi guys, My name is wani.

I was assigned to do a project for data acquisiton system by using arduino.

my machine got 6 s-type load cell that measure 500kg and 1000kg and each of load cell need to be connected with HX711 amplifier,am I right?

so my question is...

How to connect the 6 load cells with arduino and display different output value? I dont have any knowledge about this since Im not in electronic field.

Help me please.. so I can learn. :confused:

tq for your concern.

Syafa8297:
I was assigned to do a project for data acquisiton system by using arduino.
[...]
I dont have any knowledge about this since Im not in electronic field.

Great management at your company. Hope they're not in a hurry, as you're in for a lot of learning even for something seemingly simple, because it's not.

HX711 is good for load cells indeed. Try to get one working first, print the results to the Serial console. I bet most HX711 libraries have example codes that do just that.

Then decide on what display you want to use, get the data from that one load cell on the display.

When all that works, try to add a second one.

Help me please.. so I can learn. :confused:

tq for your concern.

Etc. Step by step. Lots of tutorials on these things around, do a Google search.

tq but i wonder can the load cell supplied with external voltage like 12v with hx711?

A HX711 breakout board must be powered with 5volt, but most Arduinos (Uno) can power several of them.
Because current draw of those board, including the connected load cell, is relative low.

Big board 5volt Arduinos (Uno, Mega) can be powered with 12volt on the DC socket, but this is borderline safe.
Not recommended for small board Arduinos (classic Nano, etc).
Generally speaking better to use a 12 to 5volt DC/DC converter, and connect to the 5volt pin.
Or just power the Uno with a 5volt cellphone charger, connected to the USB socket.

Complete building a single HX711 setup first, before you move on to multiple HX711 boards.
There are AFAIK libraries for multiple load cells around.
Leo..

Syafa8297:
i wonder can the load cell supplied with external voltage like 12v with hx711?

Your question is not clear. But if you are asking..."can I use an HX711 with a load cell that is powered with 12 volts (either because the load cell is already powered that way, or perhaps because you think it would be better if the differential voltage is larger)"...the answer is NO, because you will violate the common mode voltage limits of the HX711. Power your load cells with the HX711's E+ and E-.