BNO085 / BNO08x 9-axis orientation sensor con ESP32

Alimentazione 3.3-5 V Bus I2C Indirizzo I2C 0x4A / 0x4B Misura orientamento, accelerazione, rotazione, campo magnetico

Pin e collegamento all’ESP32

Pin	Ruolo	Pin ESP32	Note
VIN	Alimentazione	3V3	Adafruit-style pin order. Other BNO08x boards differ: check the silkscreen
3VO	Non collegato all’ESP32	—	Output of the on-board 3.3 V regulator. Leave unconnected
GND	Massa	GND
SCL	Clock I2C (SCL)	D22
SDA	Dati I2C (SDA)	D21
INT	Interrupt	D35	LOW when the sensor has data. Recommended
RST	Ingresso (lo pilota l’ESP32)	D25	Reset, active LOW. Recommended
CS	Non collegato all’ESP32	—	SPI chip select. Leave unconnected or HIGH for I2C
DI	Non collegato all’ESP32	—	SPI data in / address select in I2C mode. Leave unconnected for 0x4A
P0	Non collegato all’ESP32	—	Protocol select. Leave LOW for I2C
P1	Non collegato all’ESP32	—	Protocol select. Leave LOW for I2C
BT	Non collegato all’ESP32	—	Boot pin. Leave unconnected

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(0x4A);
  bool found = Wire.endTransmission() == 0;
  Serial.println(found ? "BNO085 / BNO08x 9-axis orientation sensor found at 0x4A" : "Not found: check power, GND and SDA/SCL");
}

void loop() {}

Fonti

CEVA / Hillcrest BNO08X datasheet, I2C address 0x4A (SA0 LOW) / 0x4B (SA0 HIGH); SHTP protocol, no simple ID register
CEVA / Hillcrest BNO08X datasheet, Host interface select with PS0/PS1

Provalo in 3D in BoardPilot

BoardPilot Dati del componente (JSON)

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