initial push

echo-led-controller/echo-led-controller.ino

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+//
+// Echo Serial Led Strip Controller
+//
+
+// Serial Connection Variables
+//
+const byte serialBufferSize = 100;
+char serialBuffer[serialBufferSize];
+const char startMarker = '<';
+const char endMarker = '>';
+byte serialBytesReceived = 0;
+boolean serialReadInProgress = false;
+boolean newSerialData = false;
+char serialData[serialBufferSize] = {0};
+char commandLimiter[2] = ":";
+
+
+void setup() {
+  // Init Serial Connection
+  Serial.begin(115200);
+  
+  // Init LED Strip
+  initLedStrip();
+
+  // Send Init Complete signal
+  Serial.println("<1:1:1>");
+}
+
+void loop() { 
+  // Handle Serial Comms
+  handleSerial();
+
+  // Handle Led Strip
+  handleLedStrip();
+}
+
+// Serial Handling
+//
+void handleSerial() {
+  if(Serial.available() > 0) {
+    char x = Serial.read();
+
+    // the order of these IF clauses is significant
+    if (x == endMarker) {
+      serialReadInProgress = false;
+      newSerialData = true;
+      serialBuffer[serialBytesReceived] = 0;
+      parseData();
+    }
+    
+    if(serialReadInProgress) {
+      serialBuffer[serialBytesReceived] = x;
+      serialBytesReceived ++;
+      if (serialBytesReceived == serialBufferSize) {
+        serialBytesReceived = serialBufferSize - 1;
+      }
+    }
+
+    if (x == startMarker) { 
+      serialBytesReceived = 0; 
+      serialReadInProgress = true;
+    }
+  }
+}
+
+void parseData() {
+  char * strtokIndex;
+  char deviceUUID[10];
+  char command[20];
+  char data[69];
+
+  // Get Device UUID
+  strtokIndex = strtok(serialBuffer, ":");
+  strcpy(deviceUUID, strtokIndex);
+
+  strtokIndex = strtok(NULL, ":");
+  strcpy(command, strtokIndex);
+
+  strtokIndex = strtok(NULL, ":");
+  strcpy(data, strtokIndex);
+
+  handleCommand(deviceUUID, command, data);
+}
+
+void sendSerialCommand(char* deviceUUID, char* command, char* data) {
+  char serialCommandBuffer[serialBufferSize];
+  char _startMarker[2] = "<";
+  char _endMarker[2] = ">";
+  sprintf(serialCommandBuffer, "%s%s:%s:%s%s", _startMarker, deviceUUID, command, data, _endMarker);
+  Serial.println(serialCommandBuffer);
+}
+
+void handleCommand(char* deviceUUID, char* command, char* data) {
+  
+  //
+  // Led Strip
+  //
+  
+  if (strcmp(deviceUUID, "34gr-54jf") == 0) {
+    ledStripCommand(deviceUUID, command, data);
+  }
+
+}