ESP8266 A0 Pin reading

[lazyazian]

I'm trying to read the current using a ACS712 5A model, but when I go to trying to get the values the ADC doesn't change unless I remove the pin entirely.I'm not sure why maybe something is wired wrong. This is a quick schematic using KiCad I have the development board, but this is the closing thing I had at the moment to make somewhat of a fritzing. There's also a multimeter in series with this circuit. I'm assuming my load is the LED and resistor. I'm trying to read the current flowing in the system any help is appreciated.

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Code: Select all

void setup() {
  Serial.begin(115200);  //Start Serial Monitor to display current read value on Serial monitor
}

void loop() {
  int sampSize = 500;
  float AcsValue = 0.0, Samples = 0.0, AvgAcs = 0.0, AcsValueF = 0.0;
  for (int x = 0; x < sampSize; x++) {  //Get 150 samples
    AcsValue = analogRead(A0);          //Read current sensor values
    Serial.println(AcsValue);
    Samples += AcsValue;                //Add samples together
    // delay(3);                           // let ADC settle before following sample 3ms
  }
  AvgAcs = Samples / sampSize;  //Taking Average of SampleMs
  AcsValueF = (((AvgAcs / 1023.0) * 4096)) / 185;
  // AcsValueF = (((AvgAcs / 1023.0) * 4.096) - 2.048) * 0.100;

  // Serial.println(AcsValueF);  //Print the read current on Serial monitor
}