Please explain the arduino coding below

20 File Edit Sketch Tools Help sketch_octobs int sensortA12 - AO; float nVPP; float nCurrThruResistorPP; float nCurrThruResistorRMS; float nCurrentThruWire; void setup() { Serial.begin(9600); pinMode (sensorTA12, INPUT); } void loop() { nVPP = getVPP(); nCurrThruResistorPP = (nVPP/200.0) * 1000.0; nCurrThruResistorRMS = nCurrThruResistorPP * 0.707; nCurrentThruwire - nCurrThruResistorRMS. 1000; Serial.print("Volts Peak : "); Serial.println(nVPP,3); Serial.print("Current Through Resistor (Peak) : "); Serial.print (nCurrThruResistorPP,3); Serial.println(" MA Peak to Peak"); Serial.print("Current Through Resistor (RMS): "); Serial.print (nCurrThruResistorRMS, 3); Serial.println(" MA RMS"); Serial.print("Current Through Wire : "); ce File Edit Sketch Tools Help sketch_oct01s serial.prin current Through sessor TS Serial.print (nCurrThruResistorRMS, 3); Serial.println(" MA RMS"); Serial.print("Current Through Wire : "); Serial.print (nCurrentThruWire, 3); Serial.println(" MA RMS"); Serial.println(); delay(100); } float getVPP) { Float result; int readValue; int maxValue = 0; uint32_t start_time = millis(); while ((millis()-start_time) maxValue) { maxvalue = readValue; } } result = (maxValue * 5.0)/1024.0; return result