Merge pull request #8 from nseidle/master

Added multimode support - volt meter and counter modes added.

Author: Jim Lindblom

firmware/Serial 7-Segment Display/Arduino_Examples/S7S_Example_Mode_Change/S7S_Example_Mode_Change.ino

@@ -0,0 +1,59 @@
+/*
+ 11-24-2012
+ Spark Fun Electronics
+ Nathan Seidle
+ 
+ This code is public domain but you buy me a beer if you use this and we meet someday (Beerware license).
+
+ Serial7Segment is an open source seven segment display. 
+
+ This is example code puts the display into counter mode.
+ 
+ Note: This code expects the display to be listening at 9600bps. If your display is not at 9600bps, you can
+ do a software or hardware reset. See the Wiki for more info: 
+ http://github.com/sparkfun/Serial7SegmentDisplay/wiki/Special-Commands#wiki-baud
+ 
+ To get this code to work, attached an Serial7Segment to an Arduino Uno using the following pins:
+ Pin 8 on Uno (software serial TX) to RX on Serial7Segment
+ VIN to PWR
+ GND to GND
+ Button on SDI (Increment)
+ Button on SDO (Decrement)
+ 
+*/
+
+#include <SoftwareSerial.h>
+
+SoftwareSerial Serial7Segment(7, 8); //RX pin, TX pin
+
+#define MODE_CMD  0x82
+
+#define MODE_DATA     0
+#define MODE_ANALOG   1
+#define MODE_COUNTER  2
+
+int cycles = 0;
+
+void setup() {
+
+  Serial.begin(9600);
+  Serial.println("OpenSegment Example Code");
+
+  Serial7Segment.begin(9600); //Talk to the Serial7Segment at 9600 bps
+  Serial7Segment.write('v'); //Reset the display - this forces the cursor to return to the beginning of the display
+  
+  delay(10);
+  Serial7Segment.write(MODE_CMD); //Change the mode of the display
+//  Serial7Segment.write(MODE_COUNTER); //Enter counter mode. Any pulse on SDI will go up. Any pulse on SDO will go down.
+//  Serial7Segment.write(MODE_ANALOG); //Enter analog mode. Unit will display the analog voltages detected on A6/A7.
+  Serial7Segment.write((byte)MODE_DATA); //Return to normal mode. You can also do a hardware reset to return to normal data mode.
+  
+}
+
+void loop() 
+{
+  //Do nothing. User must hit momentary buttons connected to SDI/SDO
+}
+
+
+

firmware/Serial 7-Segment Display/Arduino_Examples/S7S_Example_Serial_Basic/S7S_Example_Serial_Basic.ino

@@ -14,8 +14,7 @@
  http://github.com/sparkfun/Serial7SegmentDisplay/wiki/Special-Commands#wiki-baud
  
  To get this code to work, attached an Serial7Segment to an Arduino Uno using the following pins:
- Pin 7 on Uno (software serial RX) to TX on Serial7Segment
- Pin 8 on Uno to RX on Serial7Segment
+ Pin 8 on Uno (software serial TX) to RX on Serial7Segment
  VIN to PWR
  GND to GND
  

firmware/Serial 7-Segment Display/Arduino_Examples/S7S_Example_Serial_Predator/S7S_Example_Serial_Predator.ino

@@ -0,0 +1,84 @@
+/*
+ 11-21-2012
+ Spark Fun Electronics
+ Nathan Seidle
+ 
+ This code is public domain but you buy me a beer if you use this and we meet someday (Beerware license).
+
+ Serial7Segment is an open source seven segment display. 
+
+ This is example code that shows how to control individual segments on each digit. Sort of like
+ the Predator display at the end of the movie when he blows himself up.
+ 
+ Note: This code expects the display to be listening at 9600bps. If your display is not at 9600bps, you can
+ do a software or hardware reset. See the Wiki for more info: 
+ http://github.com/sparkfun/Serial7SegmentDisplay/wiki/Special-Commands#wiki-baud
+ 
+ To get this code to work, attached an Serial7Segment to an Arduino Uno using the following pins:
+ Pin 8 on Uno to RX on Serial7Segment
+ VIN to PWR
+ GND to GND
+ 
+*/
+
+//From https://github.com/sparkfun/Serial7SegmentDisplay/wiki/Special-Commands#wiki-individual
+#define SEGMENT1  0
+#define SEGMENT2  1
+#define SEGMENT3  2
+#define SEGMENT4  3
+#define SEGMENT5  4
+#define SEGMENT6  5
+#define SEGMENT7  6
+
+#define DIGIT1  0x7B
+#define DIGIT2  0x7C
+#define DIGIT3  0x7D
+#define DIGIT4  0x7E
+
+#include <SoftwareSerial.h>
+
+SoftwareSerial Serial7Segment(7, 8); //RX pin, TX pin
+
+void setup() {
+
+  Serial.begin(9600);
+  Serial.println("OpenSegment Example Code");
+
+  Serial7Segment.begin(9600); //Talk to the Serial7Segment at 9600 bps
+  Serial7Segment.write('v'); //Reset the display - this forces the cursor to return to the beginning of the display
+
+  //Here's the basic example
+  Serial7Segment.write(DIGIT1);  // Control individual segments on a digit
+  Serial7Segment.write( (1<<SEGMENT1) | (1<<SEGMENT4) | (1<<SEGMENT7) ); // Turn on certain segments
+
+  Serial7Segment.write(DIGIT2);  // Control individual segments on a digit
+  Serial7Segment.write( (1<<SEGMENT2) | (1<<SEGMENT5) | (1<<SEGMENT7) ); // Turn on certain segments
+
+  Serial7Segment.write(DIGIT3);  // Control individual segments on a digit
+  Serial7Segment.write( (1<<SEGMENT4) | (1<<SEGMENT5) ); // Turn on certain segments
+
+  Serial7Segment.write(DIGIT4);  // Control individual segments on a digit
+  Serial7Segment.write( (1<<SEGMENT5) | (1<<SEGMENT6) | (1<<SEGMENT7) ); // Turn on certain segments
+  
+  delay(1500);
+
+  //Here's the more fun example
+
+  //Seed random generator with analog input - nothing needs to be connected to A0  
+  randomSeed(analogRead(0)); 
+}
+
+void loop() 
+{
+  for(int x = 0 ; x < 4 ; x++)
+  {
+    byte randNumber = random(0, 127); //Give me random number between 0 and 127
+    Serial7Segment.write(DIGIT1 + x); //Control individual segments on a digit
+    Serial7Segment.write(randNumber); //Turn on random segments
+  }
+
+  delay(1000);
+}
+
+
+