ld2451

package module

v0.0.0-...-0aa71f5 Latest Latest Go to latest Published: Aug 1, 2025 License: MIT Imports: 6 Imported by: 0

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Valid go.mod file
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Repository

github.com/voyager3m/ld2451

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README ¶

ld2451

golang library for HiLink HLK LD2451 board

Documentation ¶

Index ¶

type Config
type Direction
- func (d Direction) String() string
type LD2451
- func OpenLD2451(config Config) (*LD2451, error)
type SerialPortBaudRate
type Target

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Config ¶

type Config struct {
	SerialPort       string
	BaudRate         int
	TargetBufferSize int //Size of the channel buffer to store targets in
}

type Direction ¶

type Direction uint8

const (
	DirectionAway   Direction = 0
	DirectionToward Direction = 1
	DirectionAll    Direction = 2
)

func (Direction) String ¶

func (d Direction) String() string

type LD2451 ¶

type LD2451 struct {
	// contains filtered or unexported fields
}

func OpenLD2451 ¶

func OpenLD2451(config Config) (*LD2451, error)

func (*LD2451) Close ¶

func (ld2451 *LD2451) Close()

func (*LD2451) EnableConfigCmd ¶

func (ld2451 *LD2451) EnableConfigCmd() error

Enabling Configuration Commands Any other command issued to the radar must be executed after this command is issued, otherwise it will be invalid.

func (*LD2451) EndConfigCmd ¶

func (ld2451 *LD2451) EndConfigCmd() error

End configuration command End the configuration command, and the radar will resume working mode after execution. If you need to send other commands again, you need to send the enable configuration command first.

func (*LD2451) GetFirmwareVersion ¶

func (ld2451 *LD2451) GetFirmwareVersion() (string, error)

func (*LD2451) GetRadarSensitivity ¶

func (ld2451 *LD2451) GetRadarSensitivity() (trigger_times bool, snr uint8, err error)

This command queries the motion sensitivity of each range gate.

func (*LD2451) GetTargetDetectionCfg ¶

func (ld2451 *LD2451) GetTargetDetectionCfg() (max_distance uint8, direction Direction, min_speed uint8, target_delay uint8, err error)

Read target detection parameter command This command can read the radar's current target detection parameters.

func (*LD2451) ReadTarget ¶

func (ld2451 *LD2451) ReadTarget() (Target, error)

func (*LD2451) ReadTargetNoBlock ¶

func (ld2451 *LD2451) ReadTargetNoBlock() (*Target, error)

func (*LD2451) RestartModule ¶

func (ld2451 *LD2451) RestartModule() error

When the module receives this command, it will automatically restart after the response is sent.

func (*LD2451) RestoreFactorySettings ¶

func (ld2451 *LD2451) RestoreFactorySettings() error

This command is used to restore all configuration values to factory settings. The configuration values take effect after the module is restarted.

func (*LD2451) SetRadarSensitivity ¶

func (ld2451 *LD2451) SetRadarSensitivity(trigger_times bool, snr uint8) error

Radar sensitivity parameter configuration command

func (*LD2451) SetSerialPortBaudRate ¶

func (ld2451 *LD2451) SetSerialPortBaudRate(serial_rate SerialPortBaudRate) error

Setting the serial port baud rate This command is used to set the baud rate of the module serial port. The configuration value will not be lost when the power is off. The configuration value will take effect after the module is restarted.

func (*LD2451) SetTargetDetectionCfg ¶

func (ld2451 *LD2451) SetTargetDetectionCfg(max_distance uint8, direction Direction, min_speed uint8, target_delay uint8) error

Target detection parameter configuration commands Any other command issued to the radar must be executed after this command is issued, otherwise it will be invalid.

func (*LD2451) StartReadThread ¶

func (ld2451 *LD2451) StartReadThread()

func (*LD2451) StartSyncReadThread ¶

func (ld2451 *LD2451) StartSyncReadThread()

func (*LD2451) StopReadThread ¶

func (ld2451 *LD2451) StopReadThread()

type SerialPortBaudRate ¶

type SerialPortBaudRate uint8

const (
	SerialPortBaudRate9600   SerialPortBaudRate = 0x0001
	SerialPortBaudRate19200  SerialPortBaudRate = 0x0002
	SerialPortBaudRate38400  SerialPortBaudRate = 0x0003
	SerialPortBaudRate57600  SerialPortBaudRate = 0x0004
	SerialPortBaudRate115200 SerialPortBaudRate = 0x0005 // default
	SerialPortBaudRate230400 SerialPortBaudRate = 0x0006
	SerialPortBaudRate256000 SerialPortBaudRate = 0x0007
	SerialPortBaudRate460800 SerialPortBaudRate = 0x0008
)

type Target ¶

type Target struct {
	Angle     int       // Angle of the target relative to the perpendicular direction of the antenna
	Distance  int       // Distance in meters to the target
	Direction Direction // Direction of movement relative to the antenna
	Speed     int       // Speed in KM/H
	SNR       int       // Signal to Noise Ratio
}

Source Files ¶

View all Source files

ld2451.go

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