56ddd4b355
Mesh gets contacts, channels, delivery receipts, QR sharing and an ESP-NOW radio. Mesh Chat is split into Mesh Contacts and Mesh Channels, `mesh inspect` replaces the Mesh Inspect app, and ESP-NOW and Wi-Fi now share the Wi-Fi radio safely.
1.4 KiB
MeshCore backend
MeshCore protocol backend for the mesh service (mesh-module).
It registers itself with mesh_backend_register() as meshcore.
Supported:
- Identity: an Ed25519 key pair created on first start and stored in the backend's data directory.
- Adverts: sent at start and every 12 hours, received adverts are verified and remembered as contacts.
- Channel messages (
GRP_TXT): the "Public" channel is preconfigured, more channels can be added withmesh_set_channel()(16-byte keys). - Direct messages (
TXT_MSG) to and from known contacts, sent as flood packets. Received messages are acknowledged, and acknowledgements of sent messages mark them as delivered.
This node is a chat node: it does not repeat packets for others.
Radio presets: "Default" is EU_868 (869.618 MHz, 62.5 kHz, SF8, CR 4/8) US_915 (910.525 MHz, 62.5 kHz, SF7, CR 4/5) or
AU_915 (915.8 MHz, 250 kHz, SF10, CR 4/5).
"EU NL" is the Dutch community setting for EU_868: 869.618 MHz, 62.5 kHz, SF7, CR 4/5.
Other regions report ERROR_NOT_SUPPORTED.
A radio with RADIO_MODULATION_ESPNOW (no LoRa) uses MeshCore's ESP-NOW transport in every region, without presets:
unencrypted broadcast frames on Wi-Fi channel 1 at 20 dBm. It reaches other Tactility and MeshCore ESP-NOW nodes in
Wi-Fi range, not LoRa nodes.
Not implemented: path learning (direct routing), requests to repeaters and room servers, multi-part messages.