Christmas 2012.

Author: sowbug

examples/TiconXmas2012/TiconXmas2012.ino

@@ -0,0 +1,99 @@
+/* -*- mode: c; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*-
+
+   G35: An Arduino library for GE Color Effects G-35 holiday lights.
+   Copyright © 2012 The G35 Authors. Use, modification, and distribution are
+   subject to the BSD license as described in the accompanying LICENSE file.
+
+   TiconXmas2012.ino is the code that I used for Christmas 2012 at my home.
+   It's yet another demonstration of working code.
+
+   By Mike Tsao <github.com/sowbug>. See README for complete attributions.
+*/
+
+#include <G35String.h>
+#include <G35StringGroup.h>
+#include <ProgramRunner.h>
+#include <StockPrograms.h>
+#include <PlusPrograms.h>
+#include <MEOPrograms.h>
+
+// Arduino with Like A G35 shield (https://github.com/sowbug/like-a-g35).
+// First string on pin 8. Second on 9. My roofline isn't quite long enough
+// for 100 lights, so I have the final 9 hidden.
+G35String lights_1(8, 50, 50, 0, false);
+G35String lights_2(9, 41);
+
+const int PROGRAM_COUNT = StockProgramGroup::ProgramCount +
+  PlusProgramGroup::ProgramCount + MEOProgramGroup::ProgramCount;
+
+StockProgramGroup stock_programs;
+PlusProgramGroup plus_programs;
+MEOProgramGroup meo_programs;
+G35StringGroup string_group;
+
+LightProgram* CreateProgram(uint8_t program_index) {
+  program_index = random() % PROGRAM_COUNT;
+
+  if (program_index < StockProgramGroup::ProgramCount) {
+    return stock_programs.CreateProgram(string_group, program_index);
+  }
+  program_index -= StockProgramGroup::ProgramCount;
+
+  if (program_index < PlusProgramGroup::ProgramCount) {
+    return plus_programs.CreateProgram(string_group, program_index);
+  }
+  program_index -= PlusProgramGroup::ProgramCount;
+
+  if (program_index < MEOProgramGroup::ProgramCount) {
+    return meo_programs.CreateProgram(string_group, program_index);
+  }
+  program_index -= MEOProgramGroup::ProgramCount;
+
+  return NULL;
+}
+
+// How long each program should run.
+#define PROGRAM_DURATION_SECONDS (90)
+
+ProgramRunner runner(CreateProgram, PROGRAM_COUNT, PROGRAM_DURATION_SECONDS);
+
+// http://www.utopiamechanicus.com/77/better-arduino-random-numbers/
+// We assume A0 and A1 are disconnected.
+uint32_t seedOut(unsigned int noOfBits) {
+  uint32_t seed = 0, limit = 99;
+  int bit0 = 0, bit1 = 0;
+  while (noOfBits--) {
+    for (int i = 0; i < limit; ++i) {
+      bit0 = analogRead(0) & 1;
+      bit1 = analogRead(1) & 1;
+      if (bit1 != bit0)
+        break;
+    }
+    seed = (seed << 1) | bit1;
+  }
+  return seed;
+}
+
+void setup() {
+  uint32_t seed = seedOut(32);
+  randomSeed(seed);
+  seed &= 0xff;
+  // random() isn't very random. But this seed generator works quite well.
+  while (seed--) {
+    random();
+  }
+
+  delay(50);
+  lights_1.enumerate();
+  lights_2.enumerate();
+
+  lights_1.do_test_patterns();
+  lights_2.do_test_patterns();
+
+  string_group.AddString(&lights_1);
+  string_group.AddString(&lights_2);
+}
+
+void loop() {
+  runner.loop();
+}