Serial.print("Battery Voltage: "); Serial.print(voltage, 2); Serial.println(" V");
| Problem | Likely Fix | |---------|-------------| | No ZMPT101B in library | Use generic circuit model (transformer + rectifier) | | Voltage reading always 0 | Check GND connections – sensor and MCU must share common ground | | AC reading unstable | Add a smoothing capacitor (e.g., 100µF) after rectification | | Divider output too low | Recalculate resistor values for your input range | voltage sensor proteus library
float vout = 0.0; float vin = 0.0; float R1 = 30000.0; // 30k ohm resistor float R2 = 7500.0; // 7.5k ohm resistor Serial