Hi there,
I've got myself a GY-521 (MPU6050) and downloaded the libs from github.
Before I change anything, I wanted to upload the MPU6050_raw to see the readings.
But I receive an "error compiling". Please see the attached screenshot.
Any ideas?
ercin
It helps to copy and paste the sketch (as text) inside code tags, and the error messages, inside code tags. Then we can try it ourselves. We aren't going to retype from an image.
Did you restart (close and re-open) the IDE after downloading the library? Where did you put the library?
Hi!
I haven't modified anything in the sketch. It is the example sketch that came with the MPU6050 library.
I added as described in Libraries Guide. And I can see the examples in "File/Examples/MPU6050/MPU6050_raw".So everything looks fine in there...
Yet, here's the sketch:
// I2C device class (I2Cdev) demonstration Arduino sketch for MPU6050 class
// 10/7/2011 by Jeff Rowberg <jeff@rowberg.net>
// Updates should (hopefully) always be available at https://github.com/jrowberg/i2cdevlib
//
// Changelog:
// 2011-10-07 - initial release
/* ============================================
I2Cdev device library code is placed under the MIT license
Copyright (c) 2011 Jeff Rowberg
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.
===============================================
*/
// Arduino Wire library is required if I2Cdev I2CDEV_ARDUINO_WIRE implementation
// is used in I2Cdev.h
#include "Wire.h"
// I2Cdev and MPU6050 must be installed as libraries, or else the .cpp/.h files
// for both classes must be in the include path of your project
#include "I2Cdev.h"
#include "MPU6050.h"
// class default I2C address is 0x68
// specific I2C addresses may be passed as a parameter here
// AD0 low = 0x68 (default for InvenSense evaluation board)
// AD0 high = 0x69
MPU6050 accelgyro;
int16_t ax, ay, az;
int16_t gx, gy, gz;
#define LED_PIN 13
bool blinkState = false;
void setup() {
// join I2C bus (I2Cdev library doesn't do this automatically)
Wire.begin();
// initialize serial communication
// (38400 chosen because it works as well at 8MHz as it does at 16MHz, but
// it's really up to you depending on your project)
Serial.begin(38400);
// initialize device
Serial.println("Initializing I2C devices...");
accelgyro.initialize();
// verify connection
Serial.println("Testing device connections...");
Serial.println(accelgyro.testConnection() ? "MPU6050 connection successful" : "MPU6050 connection failed");
// configure Arduino LED for
pinMode(LED_PIN, OUTPUT);
}
void loop() {
// read raw accel/gyro measurements from device
accelgyro.getMotion6(&ax, &ay, &az, &gx, &gy, &gz);
// these methods (and a few others) are also available
//accelgyro.getAcceleration(&ax, &ay, &az);
//accelgyro.getRotation(&gx, &gy, &gz);
// display tab-separated accel/gyro x/y/z values
Serial.print("a/g:\t");
Serial.print(ax); Serial.print("\t");
Serial.print(ay); Serial.print("\t");
Serial.print(az); Serial.print("\t");
Serial.print(gx); Serial.print("\t");
Serial.print(gy); Serial.print("\t");
Serial.println(gz);
// blink LED to indicate activity
blinkState = !blinkState;
digitalWrite(LED_PIN, blinkState);
}
And here are the error messages:
MPU6050_raw.cpp.o: In function `__static_initialization_and_destruction_0':
C:\Users\ErcinUral\Desktop\arduino-1.5.2/MPU6050_raw.ino:45: undefined reference to `MPU6050::MPU6050()'
MPU6050_raw.cpp.o: In function `loop':
C:\Users\ErcinUral\Desktop\arduino-1.5.2/MPU6050_raw.ino:76: undefined reference to `MPU6050::getMotion6(int*, int*, int*, int*, int*, int*)'
MPU6050_raw.cpp.o: In function `setup':
C:\Users\ErcinUral\Desktop\arduino-1.5.2/MPU6050_raw.ino:64: undefined reference to `MPU6050::initialize()'
C:\Users\ErcinUral\Desktop\arduino-1.5.2/MPU6050_raw.ino:68: undefined reference to `MPU6050::testConnection()'
Please state where you got "I2Cdev.h" and "MPU6050.h" (links).
I've got myself a GY-521 (MPU6050) and downloaded the libs from github.
This shouldn't be like extracting teeth. It helps to provide all the information about your sketch and the problem, like where you got your libraries from, as they appear to be part of the problem.
This shouldn't be like extracting teeth.
Sorry.
Libs are from:
I downloaded each of the files and then packed in a zip then used the IDE to install them:
"Sketch / Import Library / Add Library"
I checked that they are extracted from the zip and copied into the Arduino libraries folder which is located at:
"My Documents\Arduino\libraries"
I restarted the IDE.
Now I see the I2Cdev and MPU6050 libraries in the "Sketch / Import Library".
I hope this helps you help me...
I downloaded those libraries. I compiled the code you posted above. I got:
Binary sketch size: 6,286 bytes (of a 32,256 byte maximum)
No errors.
What board are you compiling for, and what version of the IDE do you have?
I think I made a mistake when downloading... I compared the file sizes and they didn't match.
Re-downloaded. Overwritten the files, and it compiles.
Thanks.
FYI, Mega2560 and 1.5.2.