adafruit / adafruit_l3gd20

Driver for Adafruit's L3GD20 I2C Gyroscope Breakout

Warning: Library Deprecated

This library is deprecated, and as of 17 October 2016 this library will no longer appear in the Arduino Library Manager. Any new projects should use the newer library available here: https://github.com/adafruit/Adafruit_L3GD20_U

L3GD20 Triple Axis Gyroscope

This is a library for the L3GD20 Adafruit Triple-Axis Gyro sensor

Designed specifically to work with the Adafruit L3GD20/L3GD20H Breakout ----> https://www.adafruit.com/products/1032

These sensors use I2C or SPI to communicate, 2 pins (I2C) or 4 pins (SPI) are required to interface.

Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit!

Check out the links above for our tutorials and wiring diagrams

Written by Kevin Townsend for Adafruit Industries.
BSD license, all text above must be included in any redistribution

To download. click the DOWNLOADS button in the top right corner, rename the uncompressed folder Adafruit_L3GD20. Check that the Adafruit_L3GD20 folder contains Adafruit_L3GD20.cpp and Adafruit_L3GD20.h

Place the Adafruit_L3GD20 library folder your (arduinosketchfolder)/libraries/ folder. You may need to create the libraries subfolder if its your first library. Restart the IDE.

adafruit_l3gd20's Issues

No need to wait for Wire.available().

This code is not correct : "while (Wire.available() < 6);".
When the Wire.requestFrom() returns, the I2C transmission has completely finished, and the data is in the buffer.

i2c for Arduino Mega declaring pins 20, 21 initializes as SPI

I'm not sure what the exact behavior is supposed to be, but you can instantiate the l3d20 object on the Uno specifying the i2c pins.

#define GYRO_CS 4 // labeled CS
#define GYRO_DO 5 // labeled SA0
#define GYRO_DI A4  // labeled SDA
#define GYRO_CLK A5 // labeled SCL
Adafruit_L3GD20 gyro(GYRO_CS, GYRO_DO, GYRO_DI, GYRO_CLK);

However, if you adjust this for the Arduino Mega 2560

#define GYRO_CS 4 // labeled CS
#define GYRO_DO 5 // labeled SA0
#define GYRO_DI 20  // labeled SDA
#define GYRO_CLK 21 // labeled SCL
Adafruit_L3GD20 gyro(GYRO_CS, GYRO_DO, GYRO_DI, GYRO_CLK);

This fails to initialize as i2c.

If I simply declare:

Adafruit_L3GD20 gyro;

i2c is selected correctly for the Arduino Mega 2560

Gyro code give errors

The gyro code give these errors.
Pls help
In file included from Adafruit_L3GD20_test.ino:19:
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:9: error: stray '\302' in program
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:9: error: stray '\267' in program
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:9: error: stray '\302' in program
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:9: error: stray '\267' in program
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: stray '#' in program
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: stray '#' in program
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: stray '#' in program
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: stray '#' in program
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: stray '#' in program
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: stray '#' in program
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: stray '#' in program
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: stray '#' in program
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: stray '#' in program
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:4: error: expected unqualified-id before '<' token
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: expected unqualified-id before '=' token
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: expected unqualified-id before '<' token
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: expected constructor, destructor, or type conversion before '.' token
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: expected unqualified-id before '<' token
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: expected unqualified-id before '<' token
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: expected constructor, destructor, or type conversion before '.' token
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: expected unqualified-id before '<' token
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: expected constructor, destructor, or type conversion before '.' token
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:543: error: expected unqualified-id before '<' token
C:\Users\Neelesh.kumar\Documents\Arduino\libraries\gyro/Adafruit_L3GD20.h:587: error: expected unqualified-id before numeric constant
Adafruit_L3GD20_test.ino: In function 'void setup()':
Adafruit_L3GD20_test:42: error: 'Serial' was not declared in this scope
Adafruit_L3GD20_test:45: error: 'gyro' was not declared in this scope
Adafruit_L3GD20_test.ino: In function 'void loop()':
Adafruit_L3GD20_test:56: error: 'gyro' was not declared in this scope
Adafruit_L3GD20_test:57: error: 'Serial' was not declared in this scope
Adafruit_L3GD20_test:60: error: 'delay' was not declared in this scope