Strong Rare Earth Magnets In R/C

[What's_nitro?]

Unless those magnets are moving (relative to the component) it shouldn't interfere with the electronics at all. If the magnet is near the motor wires then you may see them jump around a bit under throttle because there is a changing EM field inside the wire and it interacts with the field of the magnet. May I ask what you are using the magnets for?