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jstarne1
USA
Asked
— Edited
Hello all, I am asking if anyone else has used compass guided navigation? I am looking at a Tilt Compensated Magnetic Compass with I2C serial communication. I have never used one ,but I have a feeling in order to make sure my bot is going the correct direction outdoors I will need a compass at the least ( maybe a GPS in the future)
Any feedback is great, reaching out for help here.
Where you mount the compass is super important as well. The motors are electro-magnetic, which create a PILE of interference. Wires around the compass will create interference as well. When a mobile phone is designed, there is a significant amount of design and engineering to place the compass and shield from components. There is also software compensation built into mobile phones for static interference - meaning, hardware interference of the PCB/Casing that doesn't change. This is pre-loaded into data tables in flash on the i2c sensor.
It seems to have all the requirements, I am wondering where I will put it since the ezb has a wifi adapter on board, hopefully wifi is outside the rf range that would cause interference.
https://www.dfrobot.com/product-1275.html
https://www.youtube.com/watch?v=gB3Tt1eQQLQ
from DFRobot page:
but no calibration info, i found more here:
https://www.robot-electronics.co.uk/htm/cmps11i2c.htm