# Load Cell and HX711 only outputting 0's

I am using an Arduino Uno and HX711 amplifier to collect data from a load cell. I previously had the load cell calibrated and functioning, but now the load cell will not read any values; only 0's are outputted, even when I apply a small load to the sensor. I have re-soldered and replaced the connecting wires. Are there any suggesting for getting a readout from my sensor?

I have been testing with 2 different load cells: Sparkfun's TAL220 Straight Bar 10kg load cell and an LFS 210-300 from Cooper Instruments (the latter is the one I want to use long term). My load cell is connected like the HX711 Breakout Guide (with an Arduino Uno instead of a RedBoard and a USB connection):

I have been using the HX711 Breakout Guide Calibration sketch to test my load cell:

#include <HX711.h>

#define DOUT 3
#define CLK 2

HX711 scale(DOUT, CLK);

float calibration_factor = 282650; //-7050 worked for my 440lb max scale setup

void setup() {
Serial.begin(9600);
Serial.println("HX711 calibration sketch");
Serial.println("Remove all weight from scale");
Serial.println("After readings begin, place known weight on scale");
Serial.println("Press + or a to increase calibration factor");
Serial.println("Press - or z to decrease calibration factor");

scale.set_scale();
scale.tare(); //Reset the scale to 0

Serial.print("Zero factor: "); //This can be used to remove the need to tare the scale. Useful in permanent scale projects.
Serial.println(zero_factor);
}

void loop() {

scale.set_scale(calibration_factor); //Adjust to this calibration factor

Serial.print(scale.get_units(), 1);
Serial.print(" kgs"); //Change this to kg and re-adjust the calibration factor if you follow SI units like a sane person
Serial.print(" calibration_factor: ");
Serial.print(calibration_factor);
Serial.println();

if(Serial.available())
{
if(temp == '+' || temp == 'a')
calibration_factor += 10;
else if(temp == '-' || temp == 'z')
calibration_factor -= 10;
}
}


I am still new to Arduino and data acquisition in general, so any suggestions would be appreciated!

Serial.print(scale.get_units(), 1);