<a id="transceiver-layer-0-data-transceiving"></a>

# Transceiver: Layer 0 data transceiving

### *class* Transceiver.Transceiver.Transceiver(device, filter, onodeID, cache, catch, cryptographyInfo, cLog)

Handling LoRa transceiving

[🔗 Source](https://git.utopic.work/PierMesh/piermesh/src/branch/main/src/Transceiver/Transceiver.py)

#### cLog

Reference to run.Node.cLog for logging

#### cryptographyInfo

Cryptography instance for encrypting transmissions

* **Type:**
  [Cryptography.WhaleSong.DHEFern](/PierMesh/piermesh/src/branch/main/docs/Cryptography/WhaleSong.md#Cryptography.WhaleSong.DHEFern)

#### filter

Sponge.base.Filter instance for filtering packets

* **Type:**
  [Sponge.base.Filter](/PierMesh/piermesh/src/branch/main/docs/Sponge/base.md#Sponge.base.Filter)

#### tcache

Data backend Daisy Cache

* **Type:**
  [Daisy.Cache.Cache](/PierMesh/piermesh/src/branch/main/docs/Daisy/Cache.md#Daisy.Cache.Cache)

#### tcatch

Daisy Catch Cache for Catch operations

* **Type:**
  [Daisy.Catch.Catch](/PierMesh/piermesh/src/branch/main/docs/Daisy/Catch.md#Daisy.Catch.Catch)

#### notConnected

Whether the transceiver has been connected to yet

* **Type:**
  bool

#### acks

Acknowledgements received per packet

* **Type:**
  dict

#### onodeID

PierMesh node ID

#### messages

Message completion acknowldgements

* **Type:**
  dict

### Notes

TODO: Check if we can remove cpid

#### *async* addPackets(data, sender, senderName, recipient, recipientNode, directID=False, packetsClass=None, encrypt=False)

Convert binary data to Message and send each packet
:param data: Data to send
:type data: bytes
:param sender: Peer/Node ID of sender
:param senderName: ID matching specific user title
:param recipient: Peer/Node ID of recipient
:param recipientNode: Node ID of node to route to
:param directID: If set send to this Node only
:param packetsClass: Protocol for message

#### *async* announce()

Announce loop runner

#### awaitFullResponse(pid)

TODO

Wait for message completed response

#### *async* awaitResponse(pid)

Wait for acknowldgement response

#### *async* initNodeDH(dhefOb, recipientNode, onodeID)

Send Diffie Hellman initialization message

#### onConnection(interface, topic=<class 'pubsub.core.callables.AUTO_TOPIC'>)

When the node connects start announce loop and end the waiting loop

#### onReceive(packet, interface)

Run each received packet through Sponge.base.Filters sieve using a new event loop

#### *async* progressCheck()

Checks if acknowldgement was received per packet and if not resends

#### responseCheck(packet)

On acknowldgement response set acks based on response

#### send(packet, recipientNode=False)

Send individual packet

* **Parameters:**
  **recipientNode** – If set send to specified node

#### *async* sendAnnounce()

Send an announce packet (contains basic network mapping information) every so often so new nodes autoconnect