Merge pull request #8 from bfranske/master

Add e1.31 sACN example code

examples/E131_DMX_Tx_Node/E131_DMX_Tx_Node.ino

@@ -0,0 +1,75 @@
+/*
+  Example code to create a Streaming ACN (E1.31) node which receives sACN packets and transmits DMX
+
+  created 5 January 2016
+  by Ben Franske <[email protected]>
+
+  This example code is in the public domain.
+
+ Circuit:
+  ESP8266 UART1 Tx (check the exact pinout of your ESP8266 module, UART1 Tx is GPIO2 which is D4 on my nodeMCU breakout board)
+  connected to data input on RS485 driver chip (example chip is TI 75176BP) wired for constant transmit and power
+  DMX lights connected to A & B of RS485 driver chip. Note, this is a simple unisolated driver circuit not suitable for production use.
+
+ Use:
+  Connect a wireless device capable of sending unicast sACN data (such as a tablet or PC runnign suitable software)
+  to the SSID specified below. Send data to the apIP address specified below on the standard sACN UDP port number.
+  Data will be converted to DMX format and output on UART1 for input to RS485 driver chip. Example open source PC
+  software which supports sACN transmitting is Q Light Controller Plus <http://www.qlcplus.org/>
+ 
+ Requires:
+  ESP8266 Core for Arduino: <https://github.com/esp8266/Arduino/>
+  ESP-Dmx library: <https://github.com/Rickgg/ESP-Dmx>
+  E1.31 library: <https://github.com/forkineye/E131>
+
+ *  This program is provided free for you to use in any way that you wish,
+ *  subject to the laws and regulations where you are using it.  Due diligence
+ *  is strongly suggested before using this code.  Please give credit where due.
+ *
+ *  The Author makes no warranty of any kind, express or implied, with regard
+ *  to this program or the documentation contained in this document.  The
+ *  Author shall not be liable in any event for incidental or consequential
+ *  damages in connection with, or arising out of, the furnishing, performance
+ *  or use of these programs.
+
+*/
+
+#include <ESP8266WiFi.h>
+#include <DNSServer.h>
+#include <E131.h>
+#include <ESPDMX.h>
+
+const char ssid[] = "Sample sACN Node";         /* Replace with your SSID */
+const char passphrase[] = "";   /* Replace with your WPA2 passphrase 8-63 character, null for none */
+
+IPAddress apIP(192, 168, 1, 1);
+IPAddress apSNM(255, 255, 255, 0);
+
+E131 e131;
+DMXESPSerial dmx;
+
+void setup() {
+  delay(1000);
+//  Serial.begin(115200);
+//  Serial.println();
+//  Serial.print("Configuring access point...");
+  WiFi.softAPConfig(apIP, apIP, apSNM);
+  WiFi.softAP(ssid, passphrase);
+
+  IPAddress myIP = WiFi.softAPIP();
+//  Serial.print("AP IP address: ");
+//  Serial.println(myIP);
+  e131.begin(E131_UNICAST, 1);
+  dmx.init(); // only initializes for 32 channels by default
+}
+
+void loop() {
+    uint16_t numChannels = e131.parsePacket();
+    if (numChannels) {
+      for (int thisChannel = 0; thisChannel <= numChannels; thisChannel++) {
+        dmx.write(thisChannel+1, e131.data[thisChannel]);
+        }
+      }
+    dmx.update();
+}
+