AM2320 temperature + humidity con ESP32

Alimentazione 3.3-5 V Bus I2C Indirizzo I2C 0x5C Misura temperatura, umidità

Pin e collegamento all’ESP32

Pin	Ruolo	Pin ESP32	Note
VDD	Alimentazione	3V3	Pin 1 (left, grille facing you)
SDA	Dati I2C (SDA)	D21	Needs a pull-up to 3.3 V (about 4.7 kΩ)
GND	Massa	GND
SCL	Clock I2C (SCL)	D22	Needs a pull-up to 3.3 V (about 4.7 kΩ). Tie SCL to GND at power-up to use the one-wire mode instead

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)

#include <Wire.h>

void setup() {
  Serial.begin(115200);
  Wire.begin(21, 22);  // SDA = GPIO 21, SCL = GPIO 22
  Wire.beginTransmission(0x5C);
  bool found = Wire.endTransmission() == 0;
  Serial.println(found ? "AM2320 temperature + humidity found at 0x5C" : "Not found: check power, GND and SDA/SCL");
}

void loop() {}

Fonti

Aosong AM2320 datasheet, Pin 1 VDD, 2 SDA, 3 GND, 4 SCL; supply 3.1 to 5.5 V
Aosong AM2320 datasheet, I2C address 0xB8 (8-bit) = 0x5C; sleeps between reads and must be woken first, so a plain scan can miss it

Provalo in 3D in BoardPilot

BoardPilot Dati del componente (JSON)

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