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--- projects:c-info-wand [2015/04/19 05:14]
smile [elektronic]
+++ projects:c-info-wand [2015/04/19 05:45]
uk
@@ Line 1: / Line 1: @@
 ====== c-info-wand ======
+{{:projects:c-info-wall.jpg?200|}}
 ===== elektronic =====
@@ Line 5: / Line 7: @@
   * connected launchpad
   * 3 RGB LED stripes (common +)
-  * PWM PINs:
+  * MOSFETs: IRL540N
+  * Schaltung ist wie beim Ingress-Table: https://github.com/c-base/ingress-table#led-driver-circuit
+  * PWM-PINs in RGB-Dreier-Gruppen:
+    * erste Gruppe: PM_3, PD_1, PD_0
+    * zweite Gruppe: PL_4, PL_5, PM_1
+    * dritte Gruppe: PM_7, PA_7, PM_6
+  * Pinout siehe: http://energia.nu/img/EK-TM4C1294XL.jpg
+===== code =====
+  * Sourcecode uses energia: http://energia.nu/
+  * Sourcecode on github: https://gist.github.com/uwekamper/ebefbdc992248407a1e7
+<code>
+/*
+  Fade for c-info wall at c-base.
+  Works with TI's connected launchpad and the energia.nu IDE.
+*/
+// Apparently the preprocessor variables B0 and B1 are already taken.
+// Therefore we use the prefix CBASE
+#define CBASER0 PM_3
+#define CBASEG0 PD_1
+#define CBASEB0 PD_0
+#define CBASER1 PL_4
+#define CBASEG1 PL_5
+#define CBASEB1 PM_1
+#define CBASER2 PM_7
+#define CBASEG2 PA_7
+#define CBASEB2 PM_6
+int brightness = 50;    // how bright the LED is
+int fadeAmount = 1;    // how many points to fade the LED by
+void setup()  {
+  pinMode(CBASER0, OUTPUT);
+  pinMode(CBASEG0, OUTPUT);
+  pinMode(CBASEB0, OUTPUT);
+  pinMode(CBASER1, OUTPUT);
+  pinMode(CBASEG1, OUTPUT);
+  pinMode(CBASEB1, OUTPUT);
+  pinMode(CBASER2, OUTPUT);
+  pinMode(CBASEG2, OUTPUT);
+  pinMode(CBASEB2, OUTPUT);
+}
+void loop() {
+  if (brightness < 90) {
+    fadeAmount = 1;
+  }
+  if (brightness >= 255) {
+    fadeAmount = -1;
+  }
+  // There was some problem with the upper-most LED stripe.
+  // That is why we just set this one to full brightness forever.
+  analogWrite(CBASER0, 255);
+  analogWrite(CBASEG0, 255);
+  analogWrite(CBASEB0, 255);
+  // The rest of the wall is pulsing.
+  analogWrite(CBASER1, brightness);
+  analogWrite(CBASEG1, brightness);
+  analogWrite(CBASEB1, brightness);
+  analogWrite(CBASER2, brightness);
+  analogWrite(CBASEG2, brightness);
+  analogWrite(CBASEB2, brightness);
+  delay(10);
+  brightness = brightness + fadeAmount;
+}
+</code>

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