How do I wire 4 load cells with HX711 and Arduino?

[ahmeddjebali89]

Hello guys, Please I need Help

I wired 4 load cells (from 5kg kitchen scale) with ADC HX711, and I wired the HX711 with the arduino but I don't now if this connection is correct or no (pls see the schematic attached). Also The serial monitor of the Arduino gives me incorrect values (high values, I mean hicgh than 5kg).

This is my program :

// Hx711.DOUT - pin #A2
// Hx711.SCK - pin #A3

#include <Hx711.h>
Hx711 scale(A2, A3);

void setup() {
Serial.begin(9600);
}

void loop() {
Serial.print(scale.getGram(), 1);
Serial.println(" g");
delay(200);
}

Please help me and give me a solution because I don't have an electronic background jsut I do that for an IoT project.

[polymorph]

So... the idea is to connect them all in parallel to average the readings?

Why does it look like you have them connected in all different ways? Some reverse polarity, some with outputs connected to ground or 5V...

Could you please draw that as a proper schematic?

[ahmeddjebali89]

I don't know, I connected them and all what I want is to see a good results on the serial monitor to upload these data on the cloud. The load cells work good, but the results on the monitor are very high I think the problem is the code !!

I added a new schematic, please check it.

[polymorph]

Part number and source of your load cells?