Added initial sketch

Universal_Serial_Adapter/Project.h

@@ -0,0 +1,57 @@
+
+// LCD
+LCDShield lcd;   // Line length max is 16
+
+// Buttons
+int buttonPins[3] = {3, 4, 5};
+
+// Standard colors
+#define BACKGROUND  BLACK
+#define TEXT        GRAY
+#define HILIGHT     GOLD
+
+// Font sizes
+#define CHAR_WIDTH 8
+#define CHAR_HEIGHT 16
+
+// Serial modes supported
+//  Abused in for loops / lookup tables -- DO NOT CHANGE none or set values
+enum serialmode { 
+  phone,
+  db9_norm, 
+  db9_null, 
+  cisco,
+  none=-1
+};
+
+// Map a mode -> text value
+char* modeToText[] = {
+  "Phone UART",
+  "DB9 - Normal",
+  "DB9 - Null Mdm",
+  "Cisco console"
+};
+
+// Mode info needed
+serialmode currentMode = none;
+serialmode selectedMode = none;
+
+// Printing text
+void printMode(serialmode aMode);
+void setMode(serialmode aMode);
+void setSelection(serialmode aMode);
+
+// Defaults
+void setDefaults() {
+  setMode(phone);
+  setSelection(phone);
+}
+
+// Figure out offsets
+int xLoc(int toSkip) { // Physically -- vertical
+  return (CHAR_HEIGHT * toSkip) + (CHAR_HEIGHT / 2);
+}
+int yLoc (int toSkip) { // Physical -- horizontal
+  return (CHAR_WIDTH * toSkip) + (CHAR_WIDTH / 2);
+}
+

Universal_Serial_Adapter/Serial_Adapter_Project.ino

@@ -0,0 +1,98 @@
+/*
+  Serial Adapter Project: Dynamic serial TTY passthroughs
+  by: Mike Crosson
+  Nusku Networks
+  date: 2013/03/09
+  license: CC-BY SA 3.0 - Creative commons share-alike 3.0
+  use this code however you'd like, just keep this license and
+  attribute.
+  
+  This sketch currently only shows the four serial modes and
+  uses S1-S3 to select the current mode.
+  
+  A trailing * after the mode indicates the current mode
+  
+  Button Map:
+    S1: Up
+    S2: Down
+    S3: Select/Enter
+  
+  Serial Modes:
+    Phone UART
+    DB9 Normal
+    DB9 Null Modem
+    Cisco console
+*/
+
+#include <ColorLCDShield.h>
+
+#include "Project.h"
+
+void setup() {
+  /* Set up the button pins as inputs, set pull-up resistor */
+  for (int i=0; i<3; i++) {
+    pinMode(buttonPins[i], INPUT);
+    digitalWrite(buttonPins[i], HIGH);
+  }
+  
+  /* Initialize the LCD, set the contrast, clear the screen */
+  lcd.init(PHILIPS);
+  lcd.contrast(-63);
+  lcd.clear(BACKGROUND);
+  
+  // Print the modes
+  //   Uses enum trickery -- don't assign values to serialmode enum values
+  for (int i=0; i<=cisco; i++) {
+    printMode((serialmode)i);
+  }
+  
+  // Setup defaults
+  setDefaults();
+}
+
+void loop() {
+  if (!digitalRead(buttonPins[0])) {
+    serialmode newMode = (serialmode)(selectedMode + 1);
+    if (newMode <= cisco) {
+      setSelection(newMode);
+    }
+    // Wait for release before going on
+    while(!digitalRead(buttonPins[0]));
+  }
+
+  if (!digitalRead(buttonPins[1])) {
+    serialmode newMode = (serialmode)(selectedMode - 1);
+    if (newMode >= 0) {
+      setSelection(newMode);
+    }
+    // Wait for release before going on
+    while(!digitalRead(buttonPins[1]));
+  }
+
+  if (!digitalRead(buttonPins[2])) {
+    setMode(selectedMode);
+    // Wait for release before going on
+    while(!digitalRead(buttonPins[2]));
+  }
+}
+
+void setMode(serialmode aMode) {
+  serialmode previousMode = currentMode;
+  currentMode = aMode;
+  lcd.setStr(" ", xLoc(previousMode), yLoc(0), TEXT, BACKGROUND); // Clear old *
+  lcd.setStr("*", xLoc(currentMode), yLoc(0), TEXT, BACKGROUND); // Add new *
+}
+
+void setSelection(serialmode aMode) {
+  serialmode previousSelection = selectedMode;
+  selectedMode = aMode;
+  int previousLength = strlen(modeToText[previousSelection]) * CHAR_WIDTH;
+  int selectedLength = strlen(modeToText[selectedMode]) * CHAR_WIDTH;
+  lcd.setLine(xLoc(selectedMode) + CHAR_HEIGHT, yLoc(1), xLoc(selectedMode) + CHAR_HEIGHT, yLoc(1) + selectedLength, HILIGHT);
+  lcd.setLine(xLoc(previousSelection) + CHAR_HEIGHT, yLoc(1), xLoc(previousSelection) + CHAR_HEIGHT, yLoc(1) + previousLength, BACKGROUND);
+}
+
+void printMode(serialmode aMode) {
+  lcd.setStr(modeToText[aMode], xLoc(aMode), yLoc(1), TEXT, BACKGROUND);
+}
+