Lack of knowledge. 3 sensors. Connection type: I2C

Projects Programming
1

Hi everybody,
i'm stuck with my project.

Problem:
I need to communicate with 3 sensors (mpu6050, ms5611 and hmc5883l) thru the I2C bus.

All SCL pins connected to A5
All SDA pins connected to A4
All GND to GND
ALL Vcc to 3,3V

I have 3 seperate codes for those sensors and I don't know how to make 1 sketch code... Or I don't need to do that???

I need to get the pressure, altitude, gyro, compass and temp. info in serial monitor, becouse then I will use proccesing software to display graphically all mensioned parameters.

Can someone explain how successfully get the info from all three sensors? Or maybe someone can share somthing similar, where I would be able to figure out my questions?
Google have no examples :confused:

Thank you all.

very very green programer,
Ringaudas

mpu6050_V2.ino (8.38 KB)

MS5611_V5_i2c.ino (640 Bytes)

hmc5883l_V3_i2c.ino (3.29 KB)

wiring.jpg
wiring.jpg1024×391 76.2 KB

2

I don't have all those libs to test with , but does each module work individually? How about pullup resistors on the I2C bus, does each module have its own pullups? If so that may be too strong of a pullup.

3

yes, when they are working separately, then I can read info from serial monitor.
But I need that the sensors would be able to work at the same time.
I'm not sure, but I think there are internal pullup resistors.
I think this is not the bigest problem. At this time I need the correct source code. When I will be sure that the code is working perfectly, then next step will be playing with resistors and so on.
now the problem is with the code. I do not know what the code structure where 3 I2C sensors are using.