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v0.1.0-UIP
Hideaki Tai 6 years ago
parent 17620e501c
commit 3958e708d3
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417
Artnet.h
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#pragma once
#ifndef ARDUINO_ARTNET_H
#define ARDUINO_ARTNET_H
// Spec (Art-Net 4) : http://artisticlicence.com/WebSiteMaster/User%20Guides/art-net.pdf
// Packet Summary : https://art-net.org.uk/structure/packet-summary-2/
// Packet Definition : https://art-net.org.uk/structure/streaming-packets/artdmx-packet-definition/
#include <Arduino.h>
#ifndef __AVR__
#include <array>
#include <vector>
#include <functional>
#else
#include "RingBuffer.h"
#endif
#ifdef ESP_PLATFORM
#include <WiFi.h>
#include <WiFiUdp.h>
#elif defined (ESP8266)
#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
#elif defined (TEENSYDUINO) || defined (__AVR__)
#include <Ethernet.h>
#include <EthernetUdp.h>
#endif
namespace arduino
{
namespace artnet
{
enum class OpCode : uint16_t
{
// Device Discovery
Poll = 0x2000,
PollReply = 0x2100,
// Device Configuration
Address = 0x6000,
Input = 0x7000,
IpProg = 0xF800,
IpProgReply = 0xF900,
Command = 0x2400,
// Streaming Control
Dmx = 0x5000,
Nzs = 0x5100,
Sync = 0x5200,
// RDM
TodRequest = 0x8000,
TodData = 0x8100,
TodControl = 0x8200,
Rdm = 0x8300,
RdmSub = 0x8400,
// Time-Keeping
TimeCode = 0x9700,
TimeSync = 0x9800,
// Triggering
Trigger = 0x9900,
// Diagnostics
DiagData = 0x2300,
// File Transfer
FirmwareMaster = 0xF200,
FirmwareReply = 0xF300,
Directory = 0x9A00,
DirectoryReply = 0x9B00,
FileTnMaster = 0xF400,
FileFnMaster = 0xF500,
FileFnReply = 0xF600
};
constexpr uint16_t OPC(OpCode op) { return static_cast<uint16_t>(op); }
enum class Index : uint16_t
{
ID = 0,
OP_CODE_L = 8,
OP_CODE_H = 9,
PROTOCOL_VER_H = 10,
PROTOCOL_VER_L = 11,
SEQUENCE = 12,
PHYSICAL = 13,
SUBUNI = 14,
NET = 15,
LENGTH_H = 16,
LENGTH_L = 17,
DATA = 18
};
constexpr uint16_t IDX(Index i) { return static_cast<uint16_t>(i); }
constexpr uint16_t DEFAULT_PORT { 6454 };
constexpr uint16_t HEADER_SIZE { 18 };
constexpr uint16_t PACKET_SIZE { 530 };
constexpr uint16_t PROTOCOL_VER { 0x0014 };
constexpr uint8_t ID_LENGTH { 8 };
constexpr char ID[ID_LENGTH] { "Art-Net" };
constexpr float DEFAULT_FPS { 40. };
constexpr uint32_t DEFAULT_INTERVAL_MS { (uint32_t)(1000. / DEFAULT_FPS) };
static const uint8_t NUM_PIXELS_PER_UNIV { 170 };
#ifdef __AVR__
template <uint16_t SIZE>
class Array
{
uint8_t buffer[SIZE];
public:
const uint8_t* data() const { return buffer; }
uint8_t* data() { return buffer; }
uint16_t size() const { return SIZE; }
uint8_t operator[] (const size_t i) const { return buffer[i]; }
uint8_t& operator[] (const size_t i) { return buffer[i]; }
};
#endif
template <typename S>
class Sender_
{
#ifdef __AVR__
Array<PACKET_SIZE> packet;
#else
std::array<uint8_t, PACKET_SIZE> packet;
#endif
const char* ip;
uint16_t port {DEFAULT_PORT};
uint8_t target_net {0};
uint8_t target_subnet {0};
uint8_t target_universe {0};
uint8_t seq {0};
uint8_t phy {0};
uint32_t prev_send_ms {0};
S* stream;
public:
virtual ~Sender_() {}
void net(uint8_t n) { target_net = n & 0x7F; }
void subnet(uint8_t s) { target_subnet = s & 0x0F; }
void universe(uint8_t u) { target_universe = u & 0x0F; }
void universe15bit(uint8_t u)
{
net((u >> 8) & 0xFF);
subnet((u >> 4) & 0x0F);
universe((u >> 0) & 0x0F);
}
void set(const uint8_t* const data, uint16_t size = 512)
{
packet[IDX(Index::PHYSICAL)] = phy;
packet[IDX(Index::NET)] = target_net;
packet[IDX(Index::SUBUNI)] = (target_subnet << 4) | target_universe;
packet[IDX(Index::LENGTH_H)] = (size >> 8) & 0xFF;
packet[IDX(Index::LENGTH_L)] = (size >> 0) & 0xFF;
memcpy((&packet[IDX(Index::DATA)]), data, size);
}
void set(const uint32_t universe_, const uint8_t* const data, uint16_t size = 512)
{
universe15bit(universe_);
set(data, size);
}
void set(const uint8_t net_, const uint8_t subnet_, const uint8_t universe_, const uint8_t* const data, uint16_t size = 512)
{
net(net_);
subnet(subnet_);
universe(universe_);
set(data, size);
}
void send()
{
packet[IDX(Index::SEQUENCE)] = seq++;
stream->beginPacket(ip, port);
stream->write(packet.data(), packet.size());
stream->endPacket();
}
void send(const uint8_t* const data, uint16_t size = 512)
{
set(data, size);
send();
}
void send(const uint32_t universe_, const uint8_t* const data, uint16_t size = 512)
{
set(universe_, data, size);
send();
}
void send(const uint8_t net_, const uint8_t subnet_, const uint8_t universe_, const uint8_t* const data, uint16_t size = 512)
{
set(net_, subnet_, universe_, data, size);
send();
}
void streaming()
{
if ((millis() - prev_send_ms) > DEFAULT_INTERVAL_MS)
{
send();
prev_send_ms = millis();
}
}
void physical(uint8_t i) { phy = constrain(i, 0, 3); }
uint8_t sequence() const { return seq; }
protected:
void attach(S& s, const char* user_ip, uint16_t user_port = DEFAULT_PORT)
{
stream = &s;
ip = user_ip;
port = user_port;
for (size_t i = 0; i < ID_LENGTH; i++) packet[IDX(Index::ID) + i] = static_cast<uint8_t>(ID[i]);
packet[IDX(Index::OP_CODE_H)] = (OPC(OpCode::Dmx) >> 8) & 0x00FF;
packet[IDX(Index::OP_CODE_L)] = (OPC(OpCode::Dmx) >> 0) & 0x00FF;
packet[IDX(Index::PROTOCOL_VER_H)] = (PROTOCOL_VER >> 8) & 0x00FF;
packet[IDX(Index::PROTOCOL_VER_L)] = (PROTOCOL_VER >> 0) & 0x00FF;
}
};
template <typename S>
class Receiver_
{
#ifdef __AVR__
typedef void (*CallbackType)(uint8_t* data, uint16_t size);
struct Map { uint32_t universe; CallbackType func; };
using CallbackMap = RingBuffer<Map, 8>;
Array<PACKET_SIZE> packet;
#else
using CallbackType = std::function<void(uint8_t* data, uint16_t size)>;
struct Map { uint32_t universe; CallbackType func; };
using CallbackMap = std::vector<Map>;
std::array<uint8_t, PACKET_SIZE> packet;
#endif
IPAddress remote_ip;
uint16_t remote_port;
CallbackMap callbacks;
S* stream;
public:
virtual ~Receiver_() {}
bool parse()
{
const size_t size = stream->parsePacket();
if (size == 0) return false;
uint8_t d[size];
stream->read(d, size);
if (checkID(d))
{
if (opcode(d) == OPC(OpCode::Dmx))
{
// TODO: std::move...
memcpy(packet.data(), d, size);
remote_ip = stream->S::remoteIP();
remote_port = (uint16_t)stream->S::remotePort();
for (auto& c : callbacks)
{
if (universe15bit() == c.universe) c.func(data(), size);
}
return true;
}
}
return false;
}
inline const IPAddress& ip() const { return remote_ip; }
inline uint16_t port() const { return remote_port; }
inline String id() const
{
String str;
for (uint8_t i = 0; i < ID_LENGTH; ++i) str += packet[IDX(Index::ID) + i];
return str;
}
inline uint16_t opcode() const
{
return (packet[IDX(Index::OP_CODE_H)] << 8) | packet[IDX(Index::OP_CODE_L)];
}
inline uint16_t opcode(const uint8_t* p) const
{
return (p[IDX(Index::OP_CODE_H)] << 8) | p[IDX(Index::OP_CODE_L)];
}
inline uint16_t version() const
{
return (packet[IDX(Index::PROTOCOL_VER_H)] << 8) | packet[IDX(Index::PROTOCOL_VER_L)];
}
inline uint8_t sequence() const
{
return packet[IDX(Index::SEQUENCE)];
}
inline uint8_t physical() const
{
return packet[IDX(Index::PHYSICAL)];
}
inline uint8_t net() const
{
return packet[IDX(Index::NET)] & 0x7F;
}
inline uint8_t subnet() const
{
return (packet[IDX(Index::SUBUNI)] >> 4) & 0x0F;
}
inline uint8_t universe() const
{
return packet[IDX(Index::SUBUNI)] & 0x0F;
}
inline uint16_t universe15bit() const
{
return (packet[IDX(Index::NET)] << 8) | packet[IDX(Index::SUBUNI)];
}
inline uint16_t length() const
{
return (packet[IDX(Index::LENGTH_H)] << 8) | packet[IDX(Index::LENGTH_L)];
}
inline uint16_t size() const
{
return length();
}
inline uint8_t* data()
{
return &(packet[HEADER_SIZE]);
}
inline uint8_t data(const uint16_t i) const
{
return packet[HEADER_SIZE + i];
}
inline void subscribe(const uint32_t universe, const CallbackType& func)
{
callbacks.push_back(Map{universe, func});
}
inline void subscribe(const CallbackType& func)
{
subscribe(0, func);
}
inline void subscribe(const uint8_t net, const uint8_t subnet, const uint8_t universe, const CallbackType& func)
{
uint32_t u = ((uint32_t)net << 8) | ((uint32_t)subnet << 4) | (uint32_t)universe;
subscribe(u, func);
}
protected:
void attach(S& s) { stream = &s; }
private:
inline bool checkID() const
{
const char* idptr = reinterpret_cast<const char*>(packet.data());
return !strcmp(ID, idptr);
}
inline bool checkID(const uint8_t* p) const
{
const char* idptr = reinterpret_cast<const char*>(p);
return !strcmp(ID, idptr);
}
};
template <typename S>
class Manager : public Sender_<S>, public Receiver_<S>
{
S stream;
public:
void begin(const char* send_ip, uint32_t send_port = DEFAULT_PORT, uint32_t recv_port = DEFAULT_PORT)
{
stream.begin(recv_port);
this->Sender_<S>::attach(stream, send_ip, send_port);
this->Receiver_<S>::attach(stream);
}
};
template <typename S>
class Sender : public Sender_<S>
{
S stream;
public:
void begin(const char* ip, uint32_t port = DEFAULT_PORT)
{
this->Sender_<S>::attach(stream, ip, port);
}
};
template <typename S>
class Receiver : public Receiver_<S>
{
S stream;
public:
void begin(uint32_t port = DEFAULT_PORT)
{
stream.begin(port);
this->Receiver_<S>::attach(stream);
}
};
}
}
#if defined (ESP_PLATFORM) || defined (ESP8266)
using Artnet = arduino::artnet::Manager<WiFiUDP>;
using ArtnetSender = arduino::artnet::Sender<WiFiUDP>;
using ArtnetReceiver = arduino::artnet::Receiver<WiFiUDP>;
#elif defined (TEENSYDUINO) || defined (__AVR__)
using Artnet = arduino::artnet::Manager<EthernetUDP>;
using ArtnetSender = arduino::artnet::Sender<EthernetUDP>;
using ArtnetReceiver = arduino::artnet::Receiver<EthernetUDP>;
#endif
#endif // ARDUINO_ARTNET_H

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README.md
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# Artnet # ArtNet
Artnet library for Arduino (Ethernet, WiFi)
Art-Net Sender/Receiver for Arduino (Ethernet, WiFi)
## Feature
- support Art-Net with both Ethernet and WiFi
- register multiple callbacks depending on universe
- flexible net/subnet/universe setting
- etc.
### Supported Platforms
- ESP32, ESP8266 (WiFi)
- Teensy 3.x (Ethernet)
- Arduino Uno/Mega etc. (Ethernet)
#### Note
Some boards without enough memory may not be able to use integrated sender/receiver.
Please use only sender OR receiver.
## Usage
This library has following Art-Net controller options.
Please use them depending on the situation.
- ArtnetSender
- ArtnetReveiver
- Artnet (Integrated Sender/Receiver)
### Art-Net Sender
```C++
#include <Artnet.h>
// declarations for Ethernet/WiFi
ArtnetSender artnet;
void setup()
{
// setup Ethernet/WiFi...
artnet.begin("127.0.0.1"); // set destination ip
}
void loop()
{
// change send data as you want
artnet.set(universe, data_ptr, size);
artnet.streaming(); // automatically send set data in 40fps
}
```
### Art-Net Receiver
```C++
#include <Artnet.h>
// declarations for Ethernet/WiFi
ArtnetSender artnet;
void callback(uint8_t* data, uint16_t size)
{
// you can also use pre-defined callbacks
}
void setup()
{
// setup Ethernet/WiFi...
artnet.begin(); // waiting for Art-Net in default port
// if Artnet packet comes to this universe, this function is called
artnet.subscribe(universe1, [](uint8_t* data, uint16_t size)
{
// use received data[], and size
});
// you can also use pre-defined callbacks
artnet.subscribe(universe2, callback);
}
void loop()
{
artnet.parse(); // check if artnet packet has come and execute callback
}
```
### Art-Net Sender
```C++
#include <Artnet.h>
// declarations for Ethernet/WiFi
Artnet artnet;
void setup()
{
// setup Ethernet/WiFi...
artnet.begin("127.0.0.1"); // send to localhost and listen to default port
// if Artnet packet comes to this universe, this function is called
artnet.subscribe(universe, [&](uint8_t* data, uint16_t size)
{
// do something with data coming to universe
});
}
void loop()
{
artnet.parse(); // check if artnet packet has come and execute callback
// change send data as you want
artnet.set(universe, data, size); // set send data
artnet.streaming(); // automatically send set data in 40fps
}
```
## Other Settings
### Net, Sub-Net, Universe, and Universe(15bit)
You can set Net, Sub-Net, Universe and Universe(15bit) flexibly.
#### Sender
```C++
// set separately
artent.net(n);
artent.subnet(s);
artent.universe(u);
artnet.set(data, size);
// set as 15bit universe
artent.universe15bit(u);
artnet.set(data, size);
// set with data and size
artnet.set(universe15bit, data, size);
artnet.set(net, subnet, universe, data, size);
```
#### Receiver
```C++
artnet.subscribe(universe15bit, function);
artnet.subscribe(net, subnet, universe, function);
```
### One Time Sending (Not Streaming)
In Sender class, you can also send Art-Net packet once.
This sends only 1 packet (NOT streaming).
```C++
artnet.send(data, size);
artnet.send(universe15bit, data, size);
artnet.send(net, subnet, universe, data, size);
```
### Set Non-Default Port
```C++
// ArtnetSender
artnet.begin(ip); // default
artnet.begin(ip, port); // set your own
// ArtnetReceiver
artnet.begin(); // default
artnet.begin(port); // set your own
// Artnet (integrated)
artnet.begin(ip); // default send/receiver
artnet.begin(ip, send_port, recv_port); // set your own
```
## APIs
### ArtnetSender
```C++
void net(uint8_t n)
void subnet(uint8_t s)
void universe(uint8_t u)
void universe15bit(uint8_t u)
void set(const uint8_t* const data, uint16_t size = 512)
void set(const uint32_t universe_, const uint8_t* const data, uint16_t size = 512)
void set(const uint8_t net_, const uint8_t subnet_, const uint8_t universe_, const uint8_t* const data, uint16_t size = 512)
void send()
void send(const uint8_t* const data, uint16_t size = 512)
void send(const uint32_t universe_, const uint8_t* const data, uint16_t size = 512)
void send(const uint8_t net_, const uint8_t subnet_, const uint8_t universe_, const uint8_t* const data, uint16_t size = 512)
void streaming()
void physical(uint8_t i)
uint8_t sequence() const
```
### ArtnetReceiver
```C++
bool parse()
inline const IPAddress& ip() const { return remote_ip; }
uint16_t port() const { return remote_port; }
String id() const
uint16_t opcode() const
uint16_t opcode(const uint8_t* p) const
uint16_t version() const
uint8_t sequence() const
uint8_t physical() const
uint8_t net() const
uint8_t subnet() const
uint8_t universe() const
uint16_t universe15bit() const
uint16_t length() const
uint16_t size() const
uint8_t* data()
uint8_t data(const uint16_t i) const
void subscribe(const uint32_t universe, const CallbackType& func)
void subscribe(const CallbackType& func)
void subscribe(const uint8_t net, const uint8_t subnet, const uint8_t universe, const CallbackType& func)
```
## License
MIT

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RingBuffer.h
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#pragma once
#ifndef RINGBUFFER_H
#define RINGBUFFER_H
template<typename T, size_t SIZE>
class RingBuffer
{
public:
inline size_t capacity() const { return SIZE; };
inline size_t size() const { return (tail_ - head_); };
inline const T* data() const { return &(queue_[head_]); }
inline T* data() { return &(queue_[head_]); }
inline bool empty() const { return tail_ == head_; };
inline void clear() { head_ = 0; tail_ = 0; };
inline void pop()
{
if (size() == 0) return;
if (size() == 1) clear();
else head_++;
};
inline void pop_back()
{
if (size() == 0) return;
if (size() == 1) clear();
else tail_--;
};
inline void push(const T& data)
{
queue_[(tail_++) % SIZE] = data;
if (size() > SIZE) head_++;
};
inline void push(T&& data)
{
queue_[(tail_++) % SIZE] = data;
if (size() > SIZE) head_++;
};
inline void push_back(const T& data)
{
queue_[(tail_++) % SIZE] = data;
if (size() > SIZE) head_++;
};
inline void push_back(T&& data)
{
queue_[(tail_++) % SIZE] = data;
if (size() > SIZE) head_++;
};
inline const T& front() const // throw(Exception)
{
// if(empty()) throw Exception();
return *(queue_ + head_ % SIZE);
};
inline T& front() // throw(Exception)
{
// if(empty()) throw Exception();
return *(queue_ + head_ % SIZE);
};
inline const T& back() const // throw(Exception)
{
// if(empty()) throw Exception();
return *(queue_ + (SIZE + tail_ - 1) % SIZE);
}
inline T& back() // throw(Exception)
{
// if(empty()) throw Exception();
return *(queue_ + (SIZE + tail_ - 1) % SIZE);
}
inline const T& operator[] (uint8_t index) const
{
return *(queue_ + (head_ + index) % SIZE);
}
inline T& operator[] (uint8_t index)
{
return *(queue_ + (head_ + index) % SIZE);
}
inline const T* begin() const { return &(queue_[head_]); }
inline T* begin() { return &(queue_[head_]); }
inline const T* end() const { return &(queue_[tail_]); }
inline T* end() { return &(queue_[tail_]); }
inline T* erase(T* p)
{
if (p == end()) return p;
for (T* pos = p + 1; pos != end(); ++pos)
*(pos - 1) = *pos;
--tail_;
return p;
}
inline void resize(size_t sz)
{
size_t s = size();
if (sz > size())
{
for (size_t i = 0; i < sz - s; ++i) push(T());
}
else if (sz < size())
{
for (size_t i = 0; i < s - sz; ++i) pop();
}
}
inline void assign(const T* const first, const T* const end)
{
clear();
const char* p = first;
while (p != end) push(*p++);
}
private:
T queue_[SIZE];
volatile size_t head_ {0};
volatile size_t tail_ {0};
};
#endif // RINGBUFFER_H

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examples/Ethernet/receiver/receiver.ino
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#include <Artnet.h>
// Ethernet stuff
const IPAddress ip(192, 168, 1, 201);
uint8_t mac[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB};
ArtnetReceiver artnet;
uint32_t universe1 = 1;
uint32_t universe2 = 2;
void callback(uint8_t* data, uint16_t size)
{
// you can also use pre-defined callbacks
}
void setup()
{
Serial.begin(115200);
Ethernet.begin(mac, ip);
artnet.begin();
// if Artnet packet comes to this universe, this function is called
artnet.subscribe(universe1, [&](uint8_t* data, uint16_t size)
{
Serial.print("artnet data (universe : ");
Serial.print(universe1);
Serial.println(") = ");
for (size_t i = 0; i < size; ++i)
{
Serial.print(data[i]); Serial.print(",");
}
Serial.println();
});
// you can also use pre-defined callbacks
artnet.subscribe(universe2, callback);
}
void loop()
{
artnet.parse(); // check if artnet packet has come and execute callback
}

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examples/Ethernet/send_receive/send_receive.ino
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#include <Artnet.h>
// Ethernet stuff
const IPAddress ip(192, 168, 1, 201);
uint8_t mac[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB};
Artnet artnet;
const uint16_t size = 512;
uint8_t data[size];
uint8_t value = 0;
uint32_t universe = 1;
void setup()
{
Serial.begin(115200);
Ethernet.begin(mac, ip);
artnet.begin("127.0.0.1"); // send to localhost
Serial.println("set subscriber");
// if Artnet packet comes to this universe, this function is called
artnet.subscribe(universe, [](uint8_t* data, uint16_t size)
{
Serial.print("artnet data (universe : ");
Serial.print(universe);
Serial.println(") = ");
for (size_t i = 0; i < size; ++i)
{
Serial.print(data[i]); Serial.print(",");
}
Serial.println();
});
Serial.println("start");
}
void loop()
{
artnet.parse(); // check if artnet packet has come and execute callback
value = millis() % 256;
memset(data, value, size);
artnet.set(universe, data, size);
artnet.streaming(); // automatically send set data in 40fps
// Serial.println("loop");
}

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examples/Ethernet/sender/sender.ino
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#include <Artnet.h>
// Ethernet stuff
const IPAddress ip(192, 168, 1, 201);
uint8_t mac[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB};
ArtnetSender artnet;
uint32_t universe = 1;
const uint16_t size = 512;
uint8_t data[size];
uint8_t value = 0;
void setup()
{
Ethernet.begin(mac, ip);
artnet.begin("127.0.0.1");
}
void loop()
{
value = millis() % 256;
memset(data, value, size);
artnet.set(universe, data, size);
artnet.streaming(); // automatically send set data in 40fps
}

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examples/WiFi/receiver/receiver.ino
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#include <Artnet.h>
// WiFi stuff
const char* ssid = "your-ssid";
const char* pwd = "your-password";
const IPAddress ip(192, 168, 1, 201);
const IPAddress gateway(192, 168, 1, 1);
const IPAddress subnet(255, 255, 255, 0);
ArtnetReceiver artnet;
uint32_t universe1 = 1;
uint32_t universe2 = 2;
void callback(uint8_t* data, uint16_t size)
{
// you can also use pre-defined callbacks
}
void setup()
{
Serial.begin(115200);
// WiFi stuff
WiFi.begin(ssid, pwd);
WiFi.config(ip, gateway, subnet);
while (WiFi.status() != WL_CONNECTED) { Serial.print("."); delay(500); }
Serial.print("WiFi connected, IP = "); Serial.println(WiFi.localIP());
artnet.begin();
// if Artnet packet comes to this universe, this function (lambda) is called
artnet.subscribe(universe1, [&](uint8_t* data, uint16_t size)
{
Serial.print("lambda : artnet data (universe : ");
Serial.print(universe1);
Serial.println(") = ");
for (size_t i = 0; i < size; ++i)
{
Serial.print(data[i]); Serial.print(",");
}
Serial.println();
});
// you can also use pre-defined callbacks
artnet.subscribe(universe2, callback);
}
void loop()
{
artnet.parse(); // check if artnet packet has come and execute callback
}

52
examples/WiFi/send_receive/send_receive.ino
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#include <Artnet.h>
// WiFi stuff
const char* ssid = "your-ssid";
const char* pwd = "your-password";
const IPAddress ip(192, 168, 1, 201);
const IPAddress gateway(192, 168, 1, 1);
const IPAddress subnet(255, 255, 255, 0);
Artnet artnet;
const uint16_t size = 512;
uint8_t data[size];
uint8_t value = 0;
uint32_t universe = 1;
void setup()
{
Serial.begin(115200);
// WiFi stuff
WiFi.begin(ssid, pwd);
WiFi.config(ip, gateway, subnet);
while (WiFi.status() != WL_CONNECTED) { Serial.print("."); delay(500); }
Serial.print("WiFi connected, IP = "); Serial.println(WiFi.localIP());
artnet.begin("127.0.0.1"); // send to localhost
// if Artnet packet comes to this universe, this function is called
artnet.subscribe(universe, [&](uint8_t* data, uint16_t size)
{
Serial.print("artnet data (universe : ");
Serial.print(universe);
Serial.println(") = ");
for (size_t i = 0; i < size; ++i)
{
Serial.print(data[i]); Serial.print(",");
}
Serial.println();
});
}
void loop()
{
artnet.parse(); // check if artnet packet has come and execute callback
value = millis() % 256;
memset(data, value, size);
artnet.set(universe, data, size);
artnet.streaming(); // automatically send set data in 40fps
}

35
examples/WiFi/sender/sender.ino
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#include <Artnet.h>
// WiFi stuff
const char* ssid = "your-ssid";
const char* pwd = "your-password";
const IPAddress ip(192, 168, 1, 201);
const IPAddress gateway(192, 168, 1, 1);
const IPAddress subnet(255, 255, 255, 0);
ArtnetSender artnet;
uint32_t universe = 1;
const uint16_t size = 512;
uint8_t data[size];
uint8_t value = 0;
void setup()
{
// WiFi stuff
WiFi.begin(ssid, pwd);
WiFi.config(ip, gateway, subnet);
while (WiFi.status() != WL_CONNECTED) { Serial.print("."); delay(500); }
Serial.print("WiFi connected, IP = "); Serial.println(WiFi.localIP());
artnet.begin("127.0.0.1");
}
void loop()
{
value = millis() % 256;
memset(data, value, size);
artnet.set(universe, data, size);
artnet.streaming(); // automatically send set data in 40fps
}

20
library.json
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{
"name": "ArtNet",
"keywords": "Art-Net,Artnet,Ethernet,WiFi",
"description": "Art-Net Sender/Receiver for Arduino (Ethernet, WiFi)binary data packer / unpacker",
"repository":
{
"type": "git",
"url": "https://github.com/hideakitai/ArtNet.git"
},
"authors":
{
"name": "Hideaki Tai",
"url": "https://github.com/hideakitai",
"maintainer": true
},
"version": "0.1.0",
"license": "MIT",
"frameworks": "*",
"platforms": "*"
}

9
library.properties
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name=ArtNet
version=0.1.0
author=hideakitai
maintainer=hideakitai
sentence=Art-Net Sender/Receiver for Arduino (Ethernet, WiFi)
paragraph=Art-Net Sender/Receiver for Arduino (Ethernet, WiFi)
category=Communication
url=https://github.com/hideakitai
architectures=*
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