Rev 3.0

Current In use revision. No RDM & no WDMX module SPI control. Signal Will hold after loss forever.

Author: adub08

fastLED_DMX_3.ino

@@ -0,0 +1,139 @@
+//Written by Alex Woodmansey using Version 1.6.8
+#include "lib_dmx.h" //4 Universe DMX Library http://www.deskontrol.net/blog/arduino-four-universes-dmx-512-library/
+#include "FastLED.h" //Fast LED Library https://github.com/FastLED/FastLED
+#include <EEPROM.h>
+#define    DMX512     (0)    // (250 kbaud - 2 to 512 channels) Standard USITT DMX-512
+#define NUM_LEDS 64 //Number of LED Pixels connected
+#define DATA_PIN 6  //Data Pin for LED Pixels
+CRGB leds[NUM_LEDS]; //Define LED Array
+#define COLOUR_ORDER GRB // LED colour order 
+
+const int ledPin =  5;      // LED Pin 5 for DMX reception yes/no
+const int testPin = 3;     // Switch Pin for Testing battery and panel
+const int disconnectPin = 2; // switch pin to disconnect wdmx
+const int WDMX_button = A5;     // WDMX Button Pin
+unsigned long now = 0; //current time value
+const byte channelwidth = 3; //3 DMX channels per pixel
+byte channel; //channel number for each pixel RGB
+volatile byte currentcounter = 0; //counter for DMX reception
+byte previouscounter = 0; //counter for DMX reception 
+byte current_hue; //hue value for rainbow effect
+byte ledNumber; //current led Pixel being used 
+volatile int val; //analog voltage from 
+
+
+
+void setup() 
+{ 
+//  EEPROM.write(0, 1);
+//  EEPROM.write(1, 64);
+  ArduinoDmx0.attachRXInterrupt  (frame_received);  //set function called when all channels received
+  ArduinoDmx0.set_control_pin (A2);    // control pin for max485   
+  ArduinoDmx0.set_rx_address(1);      // set rx0 dmx start address
+  ArduinoDmx0.set_rx_channels(NUM_LEDS*channelwidth);     // number of DMX channel to receive 
+  ArduinoDmx0.init_rx(DMX512);        // starts universe 0 as rx, NEW Parameter DMX mode
+  pinMode (ledPin, OUTPUT);  //status LED set to Output 
+  pinMode (testPin, INPUT_PULLUP); //Test Mode Switch
+  pinMode (WDMX_button, OUTPUT); //WDMX control button
+  pinMode (disconnectPin, INPUT_PULLUP); //Disconnect interrupt switch
+  digitalWrite(WDMX_button, HIGH); //WDMX control pin left high
+  LEDS.setBrightness(255); //Set overall LED brightness
+  FastLED.addLeds<WS2812, DATA_PIN, COLOUR_ORDER>(leds, NUM_LEDS); //initialize LED Pixel output
+  attachInterrupt(digitalPinToInterrupt(disconnectPin), disconect, LOW);
+  FastLED.setMaxPowerInVoltsAndMilliamps(5,2700);  //#experiemental# sets max power at 13.5w for LEDS
+  
+
+  post(); //run power on self test function each time board resets 
+  SYS_TEST();
+}  //end setup()
+
+void loop()
+{
+  if(currentcounter != previouscounter) //has the value changed?
+  {
+    now = millis(); //store the time since the value has increased 
+    previouscounter = currentcounter; //set the previous value equal to the current value
+  }
+  
+  if((millis() - now) > 5000) //is the time since the value changed greater than 5 seconds?
+  {
+   //digitalWrite(ledPin, LOW); //turn status LED off. We are no longer receiving the DMX signal.  
+    noDMX(); //run no DMX function
+  }
+  else
+  {
+   digitalWrite(ledPin, HIGH); //turn status LED on.  We are receiving the DMX signal.
+   DMXProcess(); //run DMX function
+  }
+  
+}  //end loop()
+
+// Custom ISR: fired when all DMX channels in one universe are received
+void frame_received(uint8_t universe) 
+{
+  static uint8_t led;
+  
+  if (universe == 0) // USART0
+  {
+    currentcounter++;  //increase counter by 1 each time through 
+  }
+}  // end of ISR
+
+
+void DMXProcess() //Function to process DMX data
+{
+channel = 0; //reset DMX channel assignment to 0 each time through loop. 
+for(ledNumber = 0; ledNumber < NUM_LEDS; ledNumber++) //Counter for pixel number
+{ 
+leds[ledNumber]= CRGB(ArduinoDmx0.RxBuffer[channel], ArduinoDmx0.RxBuffer[channel +1], ArduinoDmx0.RxBuffer[channel +2]); //assign DMX channels to RGB channel of each pixel
+channel +=channelwidth; //increase last DMX channel number by channel width
+}
+  FastLED.show(); //Send data to pixels
+  delay(60); //delay 60 miliseconds for DMX to catch up.
+} 
+
+void noDMX() //Function to run when no DMX signal is present
+{
+    digitalWrite(ledPin, LOW); //turn status LED off. We are no longer receiving the DMX signal.
+    delay(500);
+
+
+} //End noDMX
+
+void SYS_TEST() //Will show battery voltage on a scale of 0-1023 over 0-NUM_LEDs [requires calabration]
+{
+  FastLED.clear(); //take all LEDs to 0
+  fill_solid( leds, NUM_LEDS, CRGB(255,255,255));
+  FastLED.show();
+  delay(300);
+  int val = analogRead(0); //reads battery Voltage
+  float numLedsToLight = val /3.487  ;
+  FastLED.clear(); //take all LEDs to 0
+ for(int led = 0; led < numLedsToLight; led++) { 
+  leds[led] = CRGB::Green; 
+ }
+  FastLED.show();
+  delay(10000);
+}
+
+void post() //power on self test function.  Make sure all pixels are working and run through colors.
+{
+   LEDS.showColor(CRGB(255, 0, 0)); //turn all pixels on red
+   delay(1000);
+   LEDS.showColor(CRGB(0, 255, 0)); //turn all pixels on green
+   delay(1000);
+   LEDS.showColor(CRGB(0, 0, 255)); //turn all pixels on blue
+   delay(1000);
+   LEDS.showColor(CRGB(0, 0, 0)); //turn all pixels off
+   
+}
+
+void disconect() //Disconnects WDMX module, runs within ISR - could be nicer. 
+{
+  digitalWrite(WDMX_button,LOW);
+  delayMicroseconds(30000);
+  delayMicroseconds(30000);
+  delayMicroseconds(30000);
+  delayMicroseconds(30000);
+  digitalWrite(WDMX_button,HIGH);
+}