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projects:c-info-wand [2015/04/19 03:24] – [elektronic] smileprojects:c-info-wand [2015/04/25 01:53] (current) – [code] uk
Line 1: Line 1:
 ====== c-info-wand ====== ====== c-info-wand ======
 +
 +{{:projects:c-info-wall.jpg?200|}}
  
 ===== elektronic ===== ===== elektronic =====
Line 5: Line 7:
   * connected launchpad   * connected launchpad
   * 3 RGB LED stripes (common +)   * 3 RGB LED stripes (common +)
-  * MOSFETs: IRL540M+  * MOSFETs: IRL540N 
 +  * Schaltung ist wie beim Ingress-Table: https://github.com/c-base/ingress-table#led-driver-circuit
   * PWM-PINs in RGB-Dreier-Gruppen:   * PWM-PINs in RGB-Dreier-Gruppen:
     * erste Gruppe: PM_3, PD_1, PD_0     * erste Gruppe: PM_3, PD_1, PD_0
     * zweite Gruppe: PL_4, PL_5, PM_1     * zweite Gruppe: PL_4, PL_5, PM_1
     * dritte Gruppe: PM_7, PA_7, PM_6     * dritte Gruppe: PM_7, PA_7, PM_6
 +  * Pinout siehe: http://energia.nu/img/EK-TM4C1294XL.jpg
 ===== code ===== ===== code =====
  
Line 18: Line 21:
 <code> <code>
 /* /*
-  Fade for c-info wall at c-base. +  Fade for c-info wall at c-base with MQTT
-  Works with TI's connected launchpad and the energia.nu IDE.+
 */ */
 +
 +#include <SPI.h>
 +#include <Ethernet.h>
 +#include <PubSubClient.h>
  
 // Apparently the preprocessor variables B0 and B1 are already taken. // Apparently the preprocessor variables B0 and B1 are already taken.
Line 39: Line 45:
 int brightness = 50;    // how bright the LED is int brightness = 50;    // how bright the LED is
 int fadeAmount = 1;    // how many points to fade the LED by int fadeAmount = 1;    // how many points to fade the LED by
 +int fadeCounter = 0;
 +
 +// MQTTServer to use
 +char server[] = "c-beam.cbrp3.c-base.org";
 +
 +void callback(char* topic, byte* payload, unsigned int length) {
 +  Serial.print("Received message for topic ");
 +  Serial.print(topic);
 +  Serial.print("with length ");
 +  Serial.println(length);
 +  Serial.println("Message:");
 +  Serial.write(payload, length);
 +  Serial.println();
 +  fadeCounter = 20;
 +}
 +
 +EthernetClient ethClient;
 +PubSubClient client(server, 1883, callback, ethClient);
 +
  
 void setup()  {  void setup()  { 
Line 50: Line 75:
   pinMode(CBASEG2, OUTPUT);   pinMode(CBASEG2, OUTPUT);
   pinMode(CBASEB2, OUTPUT);   pinMode(CBASEB2, OUTPUT);
 +  
 +  Serial.begin(115200);
 +  
 +  Serial.print("Ethernet starting.");
 +  
 +  // Start Ethernet with the build in MAC Address
 +  Ethernet.begin(0);
 +
 +  Serial.print("My IP address: ");
 +  Serial.println(Ethernet.localIP());
 }  } 
  
-void loop() { +void doFade() { 
-  if (brightness < 90) { +  while(true) { 
-    fadeAmount = 1; +    if (brightness < 50) { 
-  }+      fadeAmount = 1; 
 +      brightness = 50; 
 +      return; 
 +    }
      
-  if (brightness >= 255) { +    if (brightness >= 200) { 
-    fadeAmount = -1; +      fadeAmount = -1; 
-  }+    }
      
-  // There was some problem with the upper-most LED stripe. +    // There was some problem with the upper-most LED stripe. 
-  // That is why we just set this one to full brightness forever. +    // That is why we just set this one to full brightness forever. 
-  analogWrite(CBASER0, 255); +    if(fadeCounter > 0) { 
-  analogWrite(CBASEG0, 255); +      analogWrite(CBASER0, 0); 
-  analogWrite(CBASEB0, 255);+      analogWrite(CBASEG0, 0); 
 +      analogWrite(CBASEB0, 255); 
 +    }  
 +    else { 
 +      analogWrite(CBASER0, 255); 
 +      analogWrite(CBASEG0, 0); 
 +      analogWrite(CBASEB0, 0); 
 +    }
      
-  // The rest of the wall is pulsing. +    // The rest of the wall is pulsing. 
-  analogWrite(CBASER1, brightness); +    analogWrite(CBASER1, brightness); 
-  analogWrite(CBASEG1, brightness); +    analogWrite(CBASEG1, brightness); 
-  analogWrite(CBASEB1, brightness); +    analogWrite(CBASEB1, brightness); 
-  analogWrite(CBASER2, brightness); +    analogWrite(CBASER2, brightness); 
-  analogWrite(CBASEG2, brightness); +    analogWrite(CBASEG2, brightness); 
-  analogWrite(CBASEB2, brightness); +    analogWrite(CBASEB2, brightness); 
-  delay(10);+    delay(10); 
 +    brightness = brightness + fadeAmount; 
 +     
 +  } 
 +} 
 + 
 +void loop() { 
 +  if (!client.connected()) { 
 +    Serial.println("Disconnected. Reconnecting...."); 
 + 
 +    if(!client.connect("c-info")) { 
 +      Serial.println("Connection failed"); 
 +    } else { 
 +      Serial.println("Connection success"); 
 +      if(client.subscribe("user/boarding")) { 
 +        Serial.println("Subscription 2 successfull"); 
 +      } 
 +    } 
 +  }
      
-  brightness = brightness + fadeAmount;+  client.loop(); 
 +  Serial.print("fadeCounter: "); 
 +  Serial.println(fadeCounter); 
 +  doFade();  
 +  if (fadeCounter > 0) { 
 +    fadeCounter--; 
 +  } 
 +  delay(800);
 } }
-</code> 
  
 +</code>
projects/c-info-wand.1429413848.txt.gz · Last modified: 2015/04/19 03:24 by smile

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