OpcServer

Open Pixel Control (OPC) server for Arduino.

Compatible with boards that utilize Arduino style WiFiServer / WiFiClient APIs.

• ESP8266
  • NodeMCU
  • Adafruit HUZZAH
  • ...
• ATSAMD21
  • Arduino Zero with WiFi Shield 101 (compiles, not tested)
  • Adafruit Feather M0 WiFi - ATSAMD21 + ATWINC1500 (compiles, not tested)
• Particle (Formerly Spark)
  • Photon
  • Core (compiles, not tested)

If you've run this successfully on other boards let me know!

Installation

Arduino IDE

1. In the Arduino IDE, Choose Sketch > Include Library > Manage Libraries
2. Search for OpcServer
3. Click Install

PlatformIO

1. platformio lib install 350

Particle

1. Copy files from src/* into your project

Usage

See examples.

Includes

#include "OpcServer.h"

Depending on your platform you may need to add other headers. For example ESP8266WiFi.h for ESP8266.

Initialize

Initialize OpcServer with WiFiServer (or TCPServer for Particle), OpcClient sized for the number of clients you'd like to support, and a buffer large enough for the OPC messages you'd like to receive.

WiFiServer server = WiFiServer(OPC_PORT);
OpcClient opcClients[OPC_MAX_CLIENTS];
uint8_t buffer[OPC_BUFFER_SIZE * OPC_MAX_CLIENTS];

OpcServer opcServer = OpcServer(server, OPC_CHANNEL,
  opcClients, OPC_MAX_CLIENTS,
  buffer, OPC_BUFFER_SIZE);

setup()

Optionally add any callback functions you'd like OpcServer to run when a message is received or a client connects/disconnects.

opcServer.setMsgReceivedCallback(cbOpcMessage);
opcServer.setClientConnectedCallback(cbOpcClientConnected);
opcServer.setClientDisconnectedCallback(cbOpcClientDisconnected);

Then call .begin().

opcServer.begin();

loop()

Call .process() in your loop to process any incoming OPC data.

opcServer.process();