The successor to REV Extensions
NOTE: an OpenRC-based SDK is NOT required to use this
NOTE: scroll down for installation instructions
Use this at your own risk. You accept the possibility that using these extra features may cause the SDK to implode and cause you lose F-3 at worlds. That being said, I used a few of these features in competition this past season without any issues.
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Setting the LED color on the Hub
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Setting the speed of the I2C buses on the Hub
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Querying for total module current draw
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Querying for servo bus current draw [ broken: REV firmware bug ]
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Querying for GPIO bus current draw
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Querying for I2C bus current draw
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Querying for individual motor channel current draw
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Reading the 5v monitor
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Reading the 12v monitor
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Queying for the internal temperature inside the Hub [ broken: unknown units ]
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Query whether the Expansion Hub is in an over-temp condition
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Query whether each individual motor H-bridge is over-temp
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Query whether phone charging is enabled [ broken: REV firmware bug ]
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Enable or disable phone charging
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Setting servo pulse width directly in microseconds
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Reading certain data in bulk from the Hub (can increase your control loop speed)
The following data can be read in one go:
- All 4 encoder counts
- All 4 encoder velocities
- All digital pins
- All all analog pins
- Is motor at target position for all 4 motors
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Query whether a motor has "lost counts" [ broken: no idea what this actually does ]
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Query for which firmware version the Hub has installed
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Query for which hardware revision the Hub is
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Open your FTC SDK Android Studio project
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Open the
build.common.gradle
file: -
Add
jcenter()
to therepositories
block at the bottom: -
Open the
build.gradle
file for the TeamCode module: -
At the bottom, add this:
dependencies { compile 'org.openftc:rev-extensions-2:1.0' }
When you've done that, the bottom of the file should look like this:
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Now perform a Gradle Sync:
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Wait for Gradle to finish gradling
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Congratulations! You are now ready to use the new features provided by REV Extensions 2!
Please see the examples folder. More detailed documentation coming soon.