Hi everyone! I wanted to create a battery monitoring system using Arduino Nano. I am searching for codes to measure SOC and SOH of battery but I failed. I've read some in this forum and some other forums but I cannot find decent and working codes.
This is one of the codes I found but this is only for SOC and it is only printing 0.7 on serial monitor
// Assume current coming from serial port
const float C_per_Ah = 3600;
// signal adjustment
const float current_scale_A = 0.1; // Ampere per serial step
const int current_offset = 128; // Offset of serial value for I=0A
float CBat_Ah = 94; /* Assumed Battery Capacity in Ah */
float Cbat_C = CBat_Ah * C_per_Ah; /* ... in Coulomb */
float SOC = 0.7; /* Initial State of Charge */
int incomingByte = current_offset; // for incoming serial data, initial 0 Ampere
float I = 0; /* current */
// the setup routine runs once when you press reset:
void setup()
{
Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
}
// the loop routine runs over and over again forever:
void loop()
{
delay(1000); // wait for a second
if (Serial.available() > 0)
{
// read the incoming byte:
incomingByte = Serial.read();
}
I = (incomingByte-current_offset) * current_scale_A;
SOC = SOC + I/Cbat_C;
Serial.print("New SOC: ");
Serial.println(SOC, 4);
}
This is the one closest to what I am trying to do
but when I contacted the owner, It cost a lot and I cant afford it so I am hoping to get some help.