Bonsoir,
J’ai reçu ce midi (enfin) mon gyro, acceleromètre, magnétomètre donc je me suis empressé de le tester.
Voici mon matos:
- MPU9250
- Arduino nano
Branchements:
Arduino —> MPU9250
5V VCC (régulateur)
GND GND
SCL A5
SDA A4
Quand je lance le scanner I2C, il me retourne ça:
Scanning...
I2C device found at address 0x68 !
done
Donc j’ai essayé une multitude de codes aujourd’hui (mon IDE est pollué de bibliothèques 
)
Et celle-ci a l’air d’être la meilleure (code concis, précis, beaucoup utilisé sur Internet, etc)
"MPU9250.h" de Brian R Taylor
Et voici le code:
/*
Basic_I2C.ino
Brian R Taylor
brian.taylor@bolderflight.com
Copyright (c) 2017 Bolder Flight Systems
Permission is hereby granted, free of charge, to any person obtaining a copy of this software
and associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "MPU9250.h"
// an MPU9250 object with the MPU-9250 sensor on I2C bus 0 with address 0x68
MPU9250 IMU(Wire,0x68);
int status;
void setup() {
// serial to display data
Serial.begin(115200);
while(!Serial) {}
// start communication with IMU
status = IMU.begin();
if (status < 0) {
Serial.println("IMU initialization unsuccessful");
Serial.println("Check IMU wiring or try cycling power");
Serial.print("Status: ");
Serial.println(status);
while(1) {}
}
}
void loop() {
// read the sensor
IMU.readSensor();
// display the data
Serial.print(IMU.getAccelX_mss(),6);
Serial.print("\t");
Serial.print(IMU.getAccelY_mss(),6);
Serial.print("\t");
Serial.print(IMU.getAccelZ_mss(),6);
Serial.print("\t");
Serial.print(IMU.getGyroX_rads(),6);
Serial.print("\t");
Serial.print(IMU.getGyroY_rads(),6);
Serial.print("\t");
Serial.print(IMU.getGyroZ_rads(),6);
Serial.print("\t");
Serial.print(IMU.getMagX_uT(),6);
Serial.print("\t");
Serial.print(IMU.getMagY_uT(),6);
Serial.print("\t");
Serial.print(IMU.getMagZ_uT(),6);
Serial.print("\t");
Serial.println(IMU.getTemperature_C(),6);
delay(100);
}
Dans le port Serial, il me retourne ça: (Bon, j’ai RESET la carte nano 4x pour essayer)
IMU initialization unsuccessful
Check IMU wiring or try cycling power
Status: -2
IMU initialization unsuccessful
Check IMU wiring or try cycling power
Status: -5
IMU initialization unsuccessful
Check IMU wiring or try cycling power
Status: -1
IMU initialization unsuccessful
Check IMU wiring or try cycling power
Status: -4
Si quelqu’un a déjà eu affaire avec ce capteur, qu’il se manifeste !
Merci beaucoup !
