Diff: main.cpp

Revision:

0:42cceb842d76

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Sep 25 20:20:04 2016 +0000
@@ -0,0 +1,37 @@
+#include <mbed.h>
+#include <mpr121.h>
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+// Create the interrupt receiver object on pin 26
+InterruptIn interrupt(p26);
+// Setup the i2c bus on pins 28 and 27
+I2C i2c(p28, p27);
+// Setup the Mpr121:
+// constructor(i2c object, i2c address of the mpr121)
+Mpr121 mpr121(&i2c, Mpr121::ADD_VSS);
+ 
+// Key hit/release interrupt routine
+void fallInterrupt() {
+  int key_code=0;
+  int i=0;
+  int value=mpr121.read(0x00);
+  value +=mpr121.read(0x01)<<8;
+  // LED demo mod
+  i=0;
+  // puts key number out to LEDs for demo
+  for (i=0; i<12; i++) {
+  if (((value>>i)&0x01)==1) key_code=i+1;
+  }
+  led4=key_code & 0x01;
+  led3=(key_code>>1) & 0x01;
+  led2=(key_code>>2) & 0x01;
+  led1=(key_code>>3) & 0x01;
+}
+ 
+int main() {
+  interrupt.fall(&fallInterrupt);
+  interrupt.mode(PullUp);
+  while (1) {}
+}
\ No newline at end of file