Node-RED ChirpStack Multicast & Enqueue Nodes

This package provides Node-RED nodes for interacting with the ChirpStack v4 gRPC API, allowing you to:

• Send multicast downlinks to a ChirpStack multicast group
• Send unicast downlinks to a specific device EUI
• Configure a shared ChirpStack gRPC server and API token
• Automatically handle hex / base64 / UTF-8 / Buffer payloads
• Optionally send confirmed downlinks

These nodes are intended for automation, testing, and operational workflows inside Node-RED.

Nodes Included

1. chirpstack-server-multicast (Config Node)

Stores:

• ChirpStack gRPC server address (e.g. chirpstack:8080)
• API Token (stored safely as Node-RED credentials)

This node must be created and referenced by the other nodes.

2. chirpstack-multicast

Sends a multicast downlink to a ChirpStack multicast group.

Inputs

• msg.payload — payload (hex, base64, UTF-8, or Buffer)
• msg.multicastGroupId or msg.payload.multicastGroupId
• msg.fPort or msg.payload.fPort

Outputs

• msg.payload.success
• msg.payload.fCnt
• msg.error on failure

3. chirpstack-enqueue

Enqueues a unicast downlink for a specific device.

Inputs

• msg.payload — payload (hex, base64, UTF-8, or Buffer)
• msg.devEui or msg.payload.devEui
• msg.fPort or msg.payload.fPort
• msg.confirmed or msg.payload.confirmed

Outputs

• msg.payload.success
• msg.payload.id (queue ID)
• msg.payload.fCnt (frame counter)
• msg.error on failure

Installation

Copy the .js and .html files into: