https://github.com/spider-gazelle/crystal-bacnet

BACnet Support for Crystal Lang
https://github.com/spider-gazelle/crystal-bacnet

Last synced: 3 months ago
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BACnet Support for Crystal Lang

• Host: GitHub
• URL: https://github.com/spider-gazelle/crystal-bacnet
• Owner: spider-gazelle
• License: mit
• Created: 2020-05-28T02:06:32.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2024-07-16T13:12:55.000Z (4 months ago)
• Last Synced: 2024-07-16T16:02:49.274Z (4 months ago)
• Language: Crystal
• Size: 147 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-crystal - crystal-bacnet - BACnet protocol implementation with BACnet/IP client (Network Protocols)

README

        
# BACnet Support for Crystal Lang

[![CI](https://github.com/spider-gazelle/crystal-bacnet/actions/workflows/ci.yml/badge.svg)](https://github.com/spider-gazelle/crystal-bacnet/actions/workflows/ci.yml)

it supports

* the IPv4 data link layer (BACnet/IP)

* the websocket data link layer (BACnet/SC)

## Installation

Add the dependency to your `shard.yml`:

   ```yaml

   dependencies:

     bacnet:

       github: spider-gazelle/crystal-bacnet

   ```

## Usage

```crystal

require "bacnet"

require "socket"

# ======================

# Create transport layer

# ======================

server = UDPSocket.new

server.bind "0.0.0.0", 0xBAC0

# ======================

# Hook up the client to the transport

# ======================

client = BACnet::Client::IPv4.new

client.on_transmit do |message, address|

  if address.address == Socket::IPAddress::BROADCAST

    # Broadcast this message, might need to be a unicast to a BBMD

  else

    server.send message, to: address

  end

end

spawn do

  # Feed data to the client

  loop do

    break if server.closed?

    bytes, client_addr = server.receive

    message = IO::Memory.new(bytes).read_bytes(BACnet::Message::IPv4)

    client.received message, client_addr

  end

end

# ======================

# Collect device information

# ======================

registry = BACnet::Client::DeviceRegistry.new(client)

registry.on_new_device do |device|

  puts "FOUND NEW DEVICE: #{device.vendor_name} #{device.name} #{device.model_name}"

end

# broadcast a who_is out onto the network

client.who_is

```