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Topic: Need help picking an IMU for a quadcopter project (Read 5398 times) previous topic - next topic

Chagrin

The Drotek board has a level converter on it (stated in red about 7 lines from the bottom of the page), so you don't need anything else.

Ufoguy


Hum I think I finally understand. Some pull-up resistors should do the trick: http://playground.arduino.cc/Main/I2CBi-directionalLevelShifter


Read the page carefully. It stays you have to know the risks and suggests that making a 5v arduino recognise a 3.3v signal it's living on the edge.

Quadcopter is a very complex thing and if something fails there is a risk of crashing or losing control or some thing else. Think of this, what if the sensor fails while it's flying. So, it's better to buy an IMU that supports 5v or better yet but a MultiWii.
If you want to meet a beautiful nurse you must be patient.

Yeah if the connection between the IMU and arduino is broken during flight, the quadcopter will crash for sure.

So I will go for the board that supports 5V.

Or you can a board that is 3.3V like the Arduino Pro 328, https://www.sparkfun.com/products/10914 so you won't need to do any level shifting.

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