Reading Battery Voltage on AO

Need Help With My Project
,
19

Ok, I’m convinced my code and maths are good.
Its just my voltage divider that sucks.
Works well for <6.3v but is useless for >6.3v

#define BLYNK_PRINT Serial
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

char ssid[] = "*************";
char pass[] = "*************";
char auth[] = "*************";

int value = 0;
float voltage;
float R1 = 67600.0;
float R2 = 67500.0;

BlynkTimer timer;

void myTimerEvent()
{
  voltage = value * (3.3 / 1024)*((R1 + R2)/R2);
  value = analogRead(A0);
  
  Serial.print("A0 Value = ");
  Serial.println(value);

  Serial.print("Voltage = ");
  Serial.println(voltage);
  
  Blynk.virtualWrite(V5, voltage);
}

void setup()
{
  // Debug console
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
  timer.setInterval(1000L, myTimerEvent);
}

void loop()
{
  Blynk.run();
  timer.run(); // Initiates BlynkTimer
}

So, I can save this as a “good” working code and start working on how to integrate it into my EPever Controllers & Blynk code …

Feel free to tell me my code is “pants”. But if you do please tell me why so I can try and fix it, because I think its great … :stuck_out_tongue_winking_eye: