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79 lines
2.2 KiB
Markdown
79 lines
2.2 KiB
Markdown
node-red-node-physical-web
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==========================
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Nodes to allow Node-RED to act as an Eddystone BLE beacon.
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Prerequisites
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-------------
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You will need a suitable Bluetooth Low Energy (BLE) stack and drivers for your hardware
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- for example Bluez 5.2.x or better.
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#### Raspberry Pi
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Install Bluetooth drivers and bluez stack, and set executeable by non-root user
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sudo apt-get install libbluetooth-dev libudev-dev pi-bluetooth
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sudo setcap cap_net_raw+eip $(eval readlink -f `which node`)
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#### Linux / OSX / Windows
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Follow **just** the pre-reqs for [noble here](https://github.com/sandeepmistry/noble).
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Install
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-------
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Run the following command in your Node-RED user directory - typically `~/.node-red`
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npm i node-red-node-physical-web
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Then on Linux follow these instructions:
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https://github.com/sandeepmistry/bleno#running-on-linux
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Usage
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-----
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### Physical-Web Out
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A node to allow Node-RED to act as an Eddystone beacon broadcasting URLs
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The config window lets you set the initial URL, announcement power and period for the Eddystone.
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Any messages received will update the advertised URL from the `msg.payload`
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### Physical-Web In
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A node to scan for local Eddystones and output information about discovered URLs and TLM data.
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Two types of messages will be emitted:
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- **URL**
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- *type* - Eddystone type
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- *txPower* - Received power at 0m in dBm
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- *url* - The URL the beacon is broadcasting
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- *tlm* - TLM data, if the device is interleaving broadcasts
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- *rssi* - RSSI of the beacon
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- *distance* - Estimated distance to the beacon
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- **UID**
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- *type* - Eddystone type
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- *txPower* - Received power at 0m in dBm
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- *namespace* - 10-byte ID of namespace
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- *instance* - 6-byte ID instance
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- *tlm* - TLM data, if the device is interleaving broadcasts
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- *rssi* - RSSI of the beacon
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- *distance* - Estimated distance to the beacon
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Where the tlm data will be in the following format
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- **tlm**
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- *version* - TLM version
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- *vbatt* - Battery Voltage
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- *temp* - Temperature
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- *advCnt* - Advertising PDU count
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- *secCnt* - Time since power on or reboot
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- *rssi* - RSSI of the beacon
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- *distance* - Estimated distance to the beacon
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