ANNOUNCING: navX MXP Robotics Navigation Sensor

[rich2202]

If we update the NavX, will it still work with the old code?

Prior year robots use the NavX (we move the NavX from bot to bot), and it is not worth updating their code.

[slibert]

Originally Posted by rich2202

If we update the NavX, will it still work with the old code?

Prior year robots use the NavX (we move the NavX from bot to bot), and it is not worth updating their code.

Yes the navX-MXP firmware is backwards compatible - older robot applications should work exactly the same no mods needed.

It's also forwards compatible - if a robot application is modified to configure navX-MXP for 100Hz updates and is run with a navX-MXP with older firmware, it will run at 66Hz.

[Jonathan L.]

Our team is planning to add a motor and a servo to our robot for state championships (off season). We are already using 9 of the 10 PWM channels on the roboRIO for motors and servos so we need to use one or two of the PWM channels on the navX for a motor and/or servo.

To my understanding the "IO" channels on the navX can be used for PWM (motors or servos) or Digital Input/Output by simply opening the reference to the the desired MXP channel with the appropriate VI for the desired signal type (we are using LabVIEW).

The only thing we're not sure of, is which pin on the IO ports is ground, power, and signal.

Please let us know if we are off track on any of the above.

[slibert]

Originally Posted by Jonathan L.

Our team is planning to add a motor and a servo to our robot for state championships (off season). We are already using 9 of the 10 PWM channels on the roboRIO for motors and servos so we need to use one or two of the PWM channels on the navX for a motor and/or servo.

To my understanding the "IO" channels on the navX can be used for PWM (motors or servos) or Digital Input/Output by simply opening the reference to the the desired MXP channel with the appropriate VI for the desired signal type (we are using LabVIEW).

The only thing we're not sure of, is which pin on the IO ports is ground, power, and signal.

Please let us know if we are off track on any of the above.

You are on the right track. The details are on the NavX-MXP Expansion io page.

Examples, including LabView are on the Io Expansion examples page.

If more info is needed, you can email support@email.com

[rleg60]

Our team used the NavX MXP sensor this last year and it worked great! We were limited by our programming experience, rather than by sensor drift/inaccuracy. It seems like a very capable product.