Diff: main.cpp

Revision:

4:8641e4da6744

Parent:

2:ffe5cf2557e3

Child:

5:f2820d1efc08

Child:

6:8d2eb79a4baf

--- a/main.cpp	Thu Dec 22 20:42:03 2016 +0000
+++ b/main.cpp	Sat Apr 08 02:57:54 2017 +0000
@@ -4,31 +4,59 @@
  
 I2C i2c(D14, D15);
 
+//notes and todos-
+//need to make the quad display with text scroll into its own class
+
+//220uA no leds on
+//default brightness - rises to 20mA at short peak then back down when scrolling hello
+//brightness = 1, rises to ~4mA at short peak then back down when scrolling hello
+
 //mpl - something with stdio screwing things up.  need to define serial port to use for debug
 Serial pc (USBTX,USBRX);
 
 Adafruit_16x8matrix matrix = Adafruit_16x8matrix(&i2c);
 Adafruit_16x8matrix matrix2 = Adafruit_16x8matrix(&i2c); 
 
-void scrollText(char * buffer, uint8_t buf_len);
+void scrollText(char * buffer, uint8_t buf_len, uint8_t speed);
+void myidlethread(void);
 
 int main() {
 
         matrix2.begin(0x71);
+        matrix2.setBrightness(1);
+        matrix2.setRotation(2);
+        
         matrix2.clear();
         matrix2.writeDisplay();
         
         matrix.begin(0x70);
+        matrix.setBrightness(1);
+                
         matrix.clear();
         matrix.writeDisplay();
         
         char buffer [50];
-        sprintf (buffer, "Hello\0");
-        scrollText(buffer,strlen(buffer));
+        sprintf (buffer, "IoT Lab\0");
+
+    while(1)
+    {
+        scrollText(buffer,strlen(buffer), 1000);
+        
+        Thread::attach_idle_hook (myidlethread);
+          
+        Thread::wait(10000);
+    }
 
 }
 
-void scrollText(char * buffer, uint8_t buf_len)
+void myidlethread(void)
+{
+  sleep();   //go to sleep, wait for an interrupt 
+
+}
+
+
+void scrollText(char * buffer, uint8_t buf_len, uint8_t speed)
 {
     
     //pc.printf("buffer = %s, len = %d\r\n", buffer, buf_len);
@@ -49,7 +77,7 @@
             }    
         }
         xoff--; /* decrement x offset*/
-        Thread::wait(70);
+        Thread::wait(1000/speed);
         matrix.clear();
         matrix2.clear();
     }