How do I use "Wire.h" library ?

[EdXian]

Hi team ,
I want to include Wire.h library to my code . I find there are some definition in I2Cdev.cpp and I try to change the definition as following:

#define I2CDEV_IMPLEMENTATION       I2CDEV_ARDUINO_WIRE
//#define I2CDEV_IMPLEMENTATION       I2CDEV_BUILTIN_FASTWIRE

and then include "Arduino.h" and "Wire.h" to my code:

#include "Arduino.h"
#include "Wire.h"
void setup() {
}

void loop() {
 
}

However , the compiler still cant find "Wire.h" .
Any Idea?
Thanks in advance .

[OpusK]

Hi, @EdXian

Wire.h is not yet implemented.
Therefore, it can not be used even if the corresponding Define is used.
And the error is that there is no Wire.h in the board package. (Because it's not implemented yet)

I will discuss with the team about Wire.h support.

[EdXian]

Hi @OpusK ,
Thank you for your help!
I will use the library i2Cdev directly . Can you give me some example about I2Cdev?
Thanks again.

[OpusK]

There are no official examples using I2CDev.
I will check to see if there is an internally implemented source.

[EdXian]

HI @OpusK ,
Ok , now I am trying to use the opencr board to get information from px4flow module through i2c protocol. If I test successfully , I will tell you.
Thanks again!

[OpusK]

Hi, @EdXian

It is not an example of OpenCR, but there is two examples using I2CDev to links below.

• arduino_examples_oled_lcd / OpenCM9.04
• arduino_examples_mpu6050_dmp / OpenCM9.04

I think it is some useful reference about how to use the API of I2CDev.