ZMPT101B AC voltage sensor module con ESP32

Alimentazione 3.3-5 V Bus ANALOG Misura tensione

Pin e collegamento all’ESP32

Pin	Ruolo	Pin ESP32	Note
VCC	Alimentazione	3V3	Use 3V3 so OUT stays under 3.3 V. Some boards have a second GND pin
OUT	Uscita analogica	D34	AC wave centred on VCC/2; set the amplitude with the trimmer. To an ADC pin (prefer ADC1: GPIO 32 to 39)
GND	Massa	GND
L	Non collegato all’ESP32	—	MAINS input! Only a qualified person connects this. Never to the ESP32
N	Non collegato all’ESP32	—	MAINS input! Only a qualified person connects this. Never to the ESP32

Collegamento consigliato per l’ESP32 DevKit a 30 pin, evitando i pin della flash, di sola lettura e di strapping. BoardPilot lo controlla mentre colleghi.

Codice di partenza (Arduino)

void setup() { Serial.begin(115200); }

void loop() {
  int mv = analogReadMilliVolts(34);  // OUT on GPIO 34
  Serial.println(mv);
  delay(200);
}

Fonti

ZMPT101B voltage transformer datasheet, 2 mA:2 mA current transformer for voltage sensing
Espressif ESP32 Technical Reference Manual, ADC: input range and attenuation

Provalo in 3D in BoardPilot

BoardPilot Dati del componente (JSON)

Componenti simili

4-20 mA to voltage converter module (HW-685)49E linear hall sensor (SS49E)ACS712 current sensor moduleACS723 current sensor moduleACS758 high-current sensor module (50-200 A)AD8232 ECG heart monitor

Dati dei componenti: CC BY 4.0, riutilizzabili citando BoardPilot.