load sensor not reading.... help

Projects General Guidance
1

I think I have it all wired correctly and it is brand new... My only question is how do I know if the actual amplifier is shot? All it will ever read is "0g" and I've tried multiple codes.... I soldered the pins in the board and I'm a newbie to soldering so I was wondering if maybe I did too much and messed the board up.
ordered this from Sainsmart.... any help is greatly appreciated!

2

sorry... thought i was copying and pasting different pictures instead of the same one over and over. :o

3

this is what I get...

4

I'm pretty sure your soldering is the problem. Those big balls of solder are connecting things that shouldn't be connected.

5

i cut away some of the bad soldering and that seemed to fix it.... now i'm trying to calibrate it and I'm getting some crazy #s. I've watched youtube videos and my serial monitor doesn't look like theirs. Not sure what to even put in the "analog readout" section since the #s are so crazy..

6

Post text, not images of text

7

I will... I just thought this would show the serial monitor as well as the code.

8 
[code/]
#include <Hx711.h>

// Arduino as load cell amplifier
// by Christian Liljedahl
// christian.liljedahl.dk

// Load cells are linear. So once you have established two data pairs, you can interpolate the rest.

// Step 1: Upload this sketch to your arduino board

// You need two loads of well know weight. In this example A = 500 kg. B = 1000 kg
// Put on load A
// read the analog value showing (this is analogvalA)
// put on load B
// read the analog value B

// Enter you own analog values here
float loadA = 500; // g
int analogvalA = 2.4; // analog reading taken with load A on the load cell

float loadB = 1000; // g
int analogvalB = 600; // analog reading taken with load B on the load cell

// Upload the sketch again, and confirm, that the kilo-reading from the serial output now is correct, using your known loads

float analogValueAverage = 0;

// How often do we do readings?
long time = 0; //
int timeBetweenReadings = 200; // We want a reading every 200 ms;

void setup() {
 Serial.begin(9600);
}

void loop() {
 int analogValue = analogRead(0);

 // running average - We smooth the readings a little bit
 analogValueAverage = 0.99*analogValueAverage + 0.01*analogValue;

 // Is it time to print?
 if(millis() > time + timeBetweenReadings){
   float load = analogToLoad(analogValueAverage);

   Serial.print("analogValue: ");Serial.println(analogValueAverage);
   Serial.print("             load: ");Serial.println(load,5);
   time = millis();
 }
}

float analogToLoad(float analogval){

 // using a custom map-function, because the standard arduino map function only uses int
 float load = mapfloat(analogval, analogvalA, analogvalB, loadA, loadB);
 return load;
}

float mapfloat(float x, float in_min, float in_max, float out_min, float out_max)
{
 return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}