Struct invelion::Reader

pub struct Reader { /* fields omitted */ }

Invelion reader

Methods

impl Reader

pub fn new(port: &str, address: u8, antenna_count: u8) -> Result<Reader>

Create the object and connect to the serial port

port should be the name of a serial port device. address is the address of the reader, which is usually 1. antenna_count is the number of antenna ports the reader has.

pub fn reset(&mut self) -> Result<()>

Reset the reader

pub fn get_version(&mut self) -> Result<(u8, u8)>

Get the firmware version of the reader

Returns a tuple of (major, minor).

pub fn set_work_antenna(&mut self, antenna_id: u8) -> Result<()>

Set the working antenna ID

antenna_id is from 0 to the number of available antennas.

pub fn get_work_antenna(&mut self) -> Result<u8>

Get the working antenna ID

Returns an ID from 0 to the number of available antennas.

pub fn get_antenna_connection_detector(&mut self) -> Result<i8>

Get the state of the antenna connection detector for the working antenna

The value is the detector threshold in dB, or 0 if disabled.

pub fn set_output_power(&mut self, power: &[u8]) -> Result<()>

Set the output power per antenna and save to flash

The length of power should be the number of antennas, and the value of power is in dBm (acceptable range is reader-dependent).

pub fn get_output_power(&mut self) -> Result<Vec<u8>>

Get the output power per antenna

Returns a vector of power for each antenna (in dBm)

pub fn get_temperature(&mut self) -> Result<i8>

Fetch the temperature of the reader in celsius

pub fn measure_return_loss(&mut self, frequency: f32) -> Result<i8>

Measure the return loss in dB of the selected antenna

pub fn real_time_inventory(&mut self, repeat: u8) -> Result<InventoryResult>

Start an inventory operation on the selected antenna and return inventory data in real time.

The repeat parameter appears to indicate the number of attempts the reader will make (although this is unclear - the datasheet calls this "repeat time"). It can be set to 255 which means the reader will optimise this for speed to allow fast multi-antenna operation.

pub fn read(
    &mut self,
    bank: MemoryBank,
    password: &[u8],
    start: u8,
    length: u8
) -> Result<Vec<ReadResult>>

Read data from tags

By default this will issue a read command to all tags within range. It will return a ReadResult for each tag it successfully read - this may include duplicate EPCs if those tags have different data.

Arguments

• bank - the memory bank to read from.
• password - the 4-byte password, or [0, 0, 0, 0] if not set/required.
• start - the starting offset of the read, in 2-byte words.
• length - the number of 2-byte words to read.

pub fn set_epc_match(&mut self, epc: &[u8]) -> Result<()>

(NOT working) set EPC access match mask

I assume this function restricts commands to act on certain EPC tags but I can't get it to work.