Messaging

The Meshcore Home Assistant integration provides comprehensive messaging capabilities for your mesh network, including sending, receiving, and logging messages.

Message Flow

Sending Messages

Messages can be sent using the integration's services:

1. Direct Messages - Send to specific nodes by name or public key
2. Channel Messages - Broadcast to all nodes on a channel

When you send a message:

1. The service validates the recipient and message
2. The message is transmitted via the Meshcore device
3. A meshcore_message_sent event is fired
4. The message appears in the Home Assistant logbook

Receiving Messages

When messages are received:

1. Raw SDK events (EventType.CONTACT_MSG_RECV or EventType.CHANNEL_MSG_RECV) are processed
2. Contact information is resolved (name lookup from public key)
3. A meshcore_message event is fired with simplified data
4. The message is logged to the Home Assistant logbook
5. Binary sensor entities track message activity

RX_LOG Correlation

When a channel message is received over the mesh network, it may arrive via multiple paths — directly from the sender and relayed through one or more repeaters. Each reception generates an RX_LOG entry containing radio metrics: signal-to-noise ratio (SNR), received signal strength (RSSI), hop count, and the routing path taken.

The integration automatically correlates these RX_LOG entries with the corresponding meshcore_message event and attaches them as rx_log_data. This gives automations and bots visibility into how a message traveled through the mesh.

Default Mode (Fixed Wait)

By default, the integration waits a fixed 500ms after receiving a channel message before firing the meshcore_message event. During this window, RX_LOG entries from repeater relays accumulate. After 500ms, all collected entries are attached to the event as rx_log_data.

This mode is simple and predictable. All available path data is present on the initial event, which is what most bots and automations expect.

Adaptive Mode (Opt-In)

When Adaptive Channel Message Delivery is enabled in Global Settings, the integration polls for RX_LOG data every 50ms instead of waiting the full 500ms. As soon as data arrives, the meshcore_message event fires immediately.

After the initial event, a background task makes two additional collection passes (at 0.5s and 1.0s) to pick up late-arriving repeater RX_LOGs. These are delivered via meshcore_delivery_update events — the same progressive pattern used for outgoing message delivery tracking.

In testing, RX_LOG data consistently arrived within the first 50ms poll, even for messages routed through 5 repeaters. This reduces typical message delivery latency from 500ms to ~50ms.

Tradeoffs

	Default (Fixed Wait)	Adaptive
Latency	Always 500ms	~50ms typical, 500ms ceiling
rx_log_data on initial event	All available paths	First path(s) only
Late-arriving repeater data	Missed if >500ms	Delivered via meshcore_delivery_update
Automation complexity	Listen to one event	May need to handle progressive updates

When to Enable Adaptive Mode

Enable adaptive mode if:

• You want lower-latency message delivery for dashboards or notifications
• Your automations don't depend on having all paths present on the initial event
• You're willing to listen for meshcore_delivery_update events to get complete path data

Keep the default if:

• Your bots or automations report total path counts from the initial event
• You want the simplest integration with no progressive events to handle
• The 500ms delay is acceptable for your use case

Enabling Adaptive Mode

1. Go to Settings → Devices & Services → Meshcore
2. Click Configure → Global Settings
3. Enable Adaptive Channel Message Delivery

No restart required. The change takes effect on the next received channel message.

Outgoing Message Delivery Tracking

Outgoing channel messages also use progressive RX_LOG collection, regardless of the adaptive mode setting. When you send a channel message, the integration makes 4 collection passes over 4 seconds, firing meshcore_delivery_update events as repeater reception data arrives. The final pass includes "progressive": false to signal that collection is complete.

This allows dashboards and bots to show delivery status updates in real time — for example, displaying how many repeaters relayed your message and which paths it took.

See Events — meshcore_delivery_update for the full event field reference.

Logbook Integration

All messages automatically appear in the Home Assistant logbook with appropriate formatting and icons.

Message Format in Logbook

Channel Messages

Display with channel prefix and sender name:

• Format: <channel> Sender: Message
• Icon: mdi:message-bulleted
• Examples:
  • <public> PonyBot: back at you
  • <public> 🦄: Ignore this testing 2
  • <public> Iris03: Good morning Tigard.

Channel 0 displays as <public>, other channels show as <1>, <2>, etc.

Direct Messages

Display as simple sender and message:

• Format: Sender: Message
• Icon: mdi:message-text
• Examples:
  • PonyBot: test
  • 🦄: Test 2
  • Weather Station: Temperature 72°F

Outgoing Messages

When your node (e.g., "PonyBot") sends messages, they appear in the logbook with your node name as the sender:

• Channel: <public> PonyBot: Your message here
• Direct: PonyBot: Your reply here

Logbook Features

• Automatic Sender Resolution - Public keys are resolved to friendly names
• Emoji Support - Full support for emoji in node names and messages
• Channel Identification - Channel 0 shows as "public"
• Message Truncation - Long messages are truncated with "..." in debug logs
• Timestamp Tracking - Shows relative time (e.g., "1 minute ago", "3 hours ago")
• Date Grouping - Messages grouped by date in the logbook
• Entity Linking - Messages link to their binary sensor entities

Message Events

The integration provides two types of message events for automations:

meshcore_message Event

Fired when any message is received. See Events documentation for field details.

Key Fields:

• message - The message text
• sender_name - Resolved sender name (e.g., "🦄", "PonyBot")
• message_type - "channel" or "direct"
• entity_id - Related binary sensor

meshcore_message_sent Event

Fired when a message is sent. See Events documentation for field details.

Key Fields:

• message - The sent message
• receiver - Recipient name or channel
• message_type - "channel" or "direct"

Binary Sensor Entities

Message activity creates binary sensor entities that track communication:

Channel Message Sensors

• Entity ID: binary_sensor.meshcore_<device_pubkey>_ch_<number>_messages
• Example: binary_sensor.meshcore_a305ca_ch_0_messages
• Created: On first message in channel
• State: Always "Active" when messages exist
• Attributes: Channel index

Contact Message Sensors

• Entity ID: binary_sensor.meshcore_<device_pubkey>_<contact_pubkey>_messages
• Example: binary_sensor.meshcore_a305ca_f293ac_messages
• Created: On first message from contact
• State: Always "Active" when messages exist
• Attributes: Public key

Channel Configuration

Meshcore devices support multiple channels with configurable names and hash-based encryption.

Hash-Based Channel Encryption

Channels use hash-based encryption where the channel name is hashed to derive the encryption key. Only nodes with the exact channel name can decrypt messages on that channel.

How it works:

• Each channel has a name and a hash derived from that name
• The hash is used as the encryption key for the channel
• Only devices configured with the same name+hash combination can communicate
• You can create private channels by using unique names and sharing them securely

Setting Channel Names

Use the set_channel command to configure channel names:

service: meshcore.execute_command
data:
  command: "set_channel 1 #pdx {{ '#pdx' | sha256 | truncate(32, true, '') }}"

Important: When using # in YAML, the entire command must be quoted (as shown above) since # starts a comment in YAML.

Command Format

set_channel <channel_idx> <name> <hash>

• channel_idx: Channel number (e.g., 0, 1, 2, etc.)
• name: Display name (e.g., #pdx, private, work, my-secret-channel)
• hash: SHA256 hash of the channel name, truncated to 32 characters

The template {{ '#pdx' | sha256 | truncate(32, true, '') }} automatically generates the correct hash from the name.

Note: The # prefix is a convention for public/community channels but is not required. You can name channels anything you want.

Channel Management UI Card

Create a dashboard card to manage your channels:

type: vertical-stack
cards:
  - type: markdown
    content: |
      ## Channel Configuration
      Configure channels with hash-based encryption.
  - type: entities
    entities:
      - entity: input_text.meshcore_channel_name
      - entity: input_number.meshcore_channel_index
  - type: button
    name: Set Channel
    icon: mdi:pound
    tap_action:
      action: call-service
      service: meshcore.execute_command
      data:
        command: >
          set_channel {{ states('input_number.meshcore_channel_index') | int }}
          {{ states('input_text.meshcore_channel_name') }}
          {{ states('input_text.meshcore_channel_name') | sha256 | truncate(32, true, '') }}

Required Helper Entities (create in Settings → Devices & Services → Helpers):

1. Channel Index (Number):

   • Name: Meshcore Channel Index
   • Entity ID: input_number.meshcore_channel_index
   • Min: 0, Max: 99, Step: 1
   • Icon: mdi:numeric

2. Channel Name (Text):

   • Name: Meshcore Channel Name
   • Entity ID: input_text.meshcore_channel_name
   • Max length: 32
   • Icon: mdi:pound

Example Channel Configurations

Public Channel (Convention: # prefix)

service: meshcore.execute_command
data:
  command: "set_channel 0 #public {{ '#public' | sha256 | truncate(32, true, '') }}"

Regional Channel

service: meshcore.execute_command
data:
  command: "set_channel 1 #pdx {{ '#pdx' | sha256 | truncate(32, true, '') }}"

Private Channel (Any name)

service: meshcore.execute_command
data:
  command: "set_channel 2 my-secret-channel {{ 'my-secret-channel' | sha256 | truncate(32, true, '') }}"

Viewing Configured Channels

To see your currently configured channels, use the MeshCore Channel select entity:

• Entity ID: select.meshcore_channel
• Shows all configured channels with their names
• Displays as "Name (idx)" format (e.g., "#pdx (1)", "work (2)")
• Updates automatically when channels are configured

Use this select entity in your messaging UI to choose which channel to send to.

Message Services

Send messages using these services:

Send Direct Message

service: meshcore.send_message
data:
  node_id: "🦄"
  message: "Hello from PonyBot!"

Send Channel Message

service: meshcore.send_channel_message
data:
  channel_idx: 0  # Public channel
  message: "Good morning mesh!"

See Services documentation for complete service details.

Automation Examples

Forward Messages to Notifications

alias: Mesh Message Notifications
trigger:
  - platform: event
    event_type: meshcore_message
action:
  - service: notify.mobile_app
    data:
      title: >
        {% if trigger.event.data.message_type == 'channel' %}
          Mesh Channel {{ trigger.event.data.channel_idx }}
        {% else %}
          DM from {{ trigger.event.data.sender_name }}
        {% endif %}
      message: "{{ trigger.event.data.message }}"

Auto-Reply to Direct Messages

alias: Auto Reply to Status Requests
trigger:
  - platform: event
    event_type: meshcore_message
    event_data:
      message_type: "direct"
condition:
  - condition: template
    value_template: "{{ 'status' in trigger.event.data.message.lower() }}"
action:
  - service: meshcore.send_message
    data:
      pubkey_prefix: "{{ trigger.event.data.pubkey_prefix }}"
      message: "PonyBot Status: Online, Battery: 95%, Temp: 72°F"

Morning Greeting

alias: Morning Mesh Greeting
trigger:
  - platform: time
    at: "08:00:00"
action:
  - service: meshcore.send_channel_message
    data:
      channel_idx: 0
      message: "Good morning mesh! ☀️"

Message Rate Limiting

alias: Hourly Status Broadcast
trigger:
  - platform: time_pattern
    hours: "*"
    minutes: "0"
action:
  - service: meshcore.send_channel_message
    data:
      channel_idx: 0
      message: >
        PonyBot Status: {{ states('sensor.meshcore_battery_percentage') }}% battery,
        {{ states('sensor.meshcore_node_count') }} nodes online

Message Filtering

By Specific Sender

trigger:
  - platform: event
    event_type: meshcore_message
condition:
  - condition: template
    value_template: "{{ trigger.event.data.sender_name == '🦄' }}"

By Channel

trigger:
  - platform: event
    event_type: meshcore_message
    event_data:
      message_type: "channel"
      channel_idx: 0  # Public channel

By Message Content

trigger:
  - platform: event
    event_type: meshcore_message
condition:
  - condition: template
    value_template: "{{ 'test' in trigger.event.data.message.lower() }}"

Exclude Own Messages

trigger:
  - platform: event
    event_type: meshcore_message
condition:
  - condition: template
    value_template: "{{ trigger.event.data.sender_name != 'PonyBot' }}"

Message History

Viewing in Logbook

1. Navigate to History in Home Assistant
2. Select the Logbook tab
3. Filter by "Meshcore" domain to see only mesh messages
4. Messages show with relative timestamps and are grouped by date

Recent Messages Example

<public> PonyBot: back at you
11:17:11 AM - 1 minute ago

<public> 🦄: Ignore this testing 2
11:08:47 AM - 9 minutes ago

<public> Roamer 2: Ack
10:17:55 AM - 1 hour ago

<public> Iris03: Good morning Tigard.
8:31:03 AM - 3 hours ago

Querying via Templates

# Count today's messages
{{ states.binary_sensor 
   | selectattr('entity_id', 'match', 'binary_sensor.meshcore.*messages')
   | list | length }}

# Check if specific contact sent messages
{{ states('binary_sensor.meshcore_abc123_messages') }}

Performance Considerations

Message Processing

• Messages are processed asynchronously to avoid blocking
• Sender name resolution is cached for performance
• Long messages (>50 chars) are truncated in debug logs only

Event Handling

• Use event filters to reduce automation triggers
• Consider using mode: queued for message handlers
• Batch message processing when handling multiple messages

Binary Sensors

• Created dynamically on first message
• Minimal state changes (always "Active")
• Use attributes for additional data without state changes

Troubleshooting

Messages Not Appearing in Logbook

• Verify the Meshcore device is connected
• Check that the sender exists in contacts
• Review debug logs for processing errors

Missing Sender Names

• Sender must be in the contact list for name resolution
• Unknown senders show as "Unknown (pubkey)"
• Channel messages extract sender from "Name: Message" format

Binary Sensors Not Created

• Sensors are created on first message only
• Check entity registry for existing sensors
• Verify entity naming follows the pattern

Own Messages Not Showing

• Ensure your node name is configured correctly
• Check that message send services complete successfully
• Verify meshcore_message_sent events are firing

Related Documentation

• Services - Sending messages
• Events - Message event details
• Automation - Message automation examples