Update Joystick tutorial. #508
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WalkthroughThe pull request introduces significant updates to the SparkFun Qwiic Joystick driver documentation and code structure in the Toit language. Key changes include renaming the class from Changes
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Actionable comments posted: 1
🧹 Outside diff range and nitpick comments (1)
docs/peripherals/drivers/sparkfun_joystick.mdx (1)
40-40: Consider adding power management methods.While the note explains the power management patterns, the current implementation doesn't include either pattern. Consider implementing a
closemethod to properly clean up resources.class Joystick: static I2C-ADDRESS ::= 0x20 registers_/serial.Registers constructor device/serial.Device: registers_ = device.registers + + /** + Closes the device and releases resources. + */ + close: + registers_ = nullAlso applies to: 51-56
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📒 Files selected for processing (1)
docs/peripherals/drivers/sparkfun_joystick.mdx(8 hunks)
🔇 Additional comments (2)
docs/peripherals/drivers/sparkfun_joystick.mdx (2)
29-30: LGTM: I2C pin configuration is well-structured.
The I2C bus configuration follows best practices with clear pin assignments.
Line range hint 143-149: Consider handling potential integer overflow.
The read-position_ method performs integer-to-float conversion which could be affected by integer overflow. Consider adding bounds checking or using a more robust conversion method.
| import .qwiic-joystick | ||
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| main: | ||
| bus := i2c.Bus | ||
| --sda=gpio.Pin 21 | ||
| --scl=gpio.Pin 22 | ||
| --sda=gpio.Pin 21 | ||
| --scl=gpio.Pin 22 | ||
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| device := bus.device SparkFunJoystick.I2C-ADDRESS | ||
| device := bus.device Joystick.I2C-ADDRESS | ||
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| joystick := SparkFunJoystick device | ||
| joystick := Joystick device | ||
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| joystick.on | ||
| while true: | ||
| print "$joystick.horizontal - $joystick.vertical " | ||
| + "(pressed: $joystick.pressed)" | ||
| print "$joystick.horizontal - $joystick.vertical (pressed: $joystick.pressed)" |
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🛠️ Refactor suggestion
Consider adding error handling and reducing polling interval.
Two suggestions for improvement:
- Add try-catch block to handle potential I2C communication errors.
- Consider reducing the sleep interval for more responsive input, as noted in the documentation.
main:
bus := i2c.Bus
--sda=gpio.Pin 21
--scl=gpio.Pin 22
device := bus.device Joystick.I2C-ADDRESS
joystick := Joystick device
while true:
- print "$joystick.horizontal - $joystick.vertical (pressed: $joystick.pressed)"
- sleep --ms=250
+ try:
+ print "$joystick.horizontal - $joystick.vertical (pressed: $joystick.pressed)"
+ catch e:
+ print "Error reading joystick: $e"
+ sleep --ms=50 // Reduced for better responsivenessCommittable suggestion skipped: line range outside the PR's diff.
Summary by CodeRabbit
New Features
Documentation
Bug Fixes