Documentation
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Overview ¶
Package pca9685 implements a PCA9685 HAT. It's probably also a generic PCA9685 but that has not been verified yet.
Package pca9685 is unimplemented for Macs.
Index ¶
- type Config
- type PCA9685
- func (pca *PCA9685) AnalogByName(name string) (board.Analog, error)
- func (pca *PCA9685) AnalogNames() []string
- func (pca *PCA9685) DigitalInterruptByName(name string) (board.DigitalInterrupt, error)
- func (pca *PCA9685) DigitalInterruptNames() []string
- func (pca *PCA9685) GPIOPinByName(pin string) (board.GPIOPin, error)
- func (pca *PCA9685) Reconfigure(ctx context.Context, deps resource.Dependencies, conf resource.Config) error
- func (pca *PCA9685) SetFrequency(ctx context.Context, frequency float64) error
- func (pca *PCA9685) SetPowerMode(ctx context.Context, mode pb.PowerMode, duration *time.Duration) error
- func (pca *PCA9685) StreamTicks(ctx context.Context, interrupts []board.DigitalInterrupt, ch chan board.Tick, ...) error
- func (pca *PCA9685) WriteAnalog(ctx context.Context, pin string, value int32, extra map[string]interface{}) error
Constants ¶
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Variables ¶
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Functions ¶
This section is empty.
Types ¶
type Config ¶
type Config struct { I2CBus string `json:"i2c_bus"` I2CAddress *int `json:"i2c_address,omitempty"` }
Config describes a PCA9685 board attached to some other board via I2C.
type PCA9685 ¶
type PCA9685 struct { resource.Named resource.AlwaysRebuild resource.TriviallyCloseable // contains filtered or unexported fields }
PCA9685 is a general purpose 16-channel 12-bit PWM controller.
func New ¶
func New(ctx context.Context, deps resource.Dependencies, conf resource.Config, logger logging.Logger) (*PCA9685, error)
New returns a new PCA9685 residing on the given bus and address.
func (*PCA9685) AnalogByName ¶ added in v0.26.0
AnalogByName returns the analog pin by the given name if it exists.
func (*PCA9685) AnalogNames ¶ added in v0.26.0
AnalogNames returns the names of all known analog pins.
func (*PCA9685) DigitalInterruptByName ¶
func (pca *PCA9685) DigitalInterruptByName(name string) (board.DigitalInterrupt, error)
DigitalInterruptByName returns the interrupt by the given name if it exists.
func (*PCA9685) DigitalInterruptNames ¶
DigitalInterruptNames returns the names of all known digital interrupts.
func (*PCA9685) GPIOPinByName ¶
GPIOPinByName returns a GPIOPin by name.
func (*PCA9685) Reconfigure ¶ added in v0.2.36
func (pca *PCA9685) Reconfigure(ctx context.Context, deps resource.Dependencies, conf resource.Config) error
Reconfigure reconfigures the board atomically and in place.
func (*PCA9685) SetFrequency ¶
SetFrequency sets the global PWM frequency for the pca.
func (*PCA9685) SetPowerMode ¶ added in v0.2.28
func (pca *PCA9685) SetPowerMode(ctx context.Context, mode pb.PowerMode, duration *time.Duration) error
SetPowerMode sets the board to the given power mode. If provided, the board will exit the given power mode after the specified duration.
func (*PCA9685) StreamTicks ¶ added in v0.24.0
func (pca *PCA9685) StreamTicks(ctx context.Context, interrupts []board.DigitalInterrupt, ch chan board.Tick, extra map[string]interface{}, ) error
StreamTicks streams digital interrupt ticks. The pca9685 board does not have the systems hardware to implement a Tick counter.