Frank Vannieuwkerke
KL25Z - Wi-Go kit. Demo code using ComparatorIn and TEMT6200 libraries.
Dependencies: ComparatorIn TEMT6200 mbed
Revision 0:404a3c785556, committed 2013-06-16
- Comitter:
- frankvnk
- Date:
- Sun Jun 16 19:54:01 2013 +0000
- Child:
- 1:69bec2b91d51
- Commit message:
- Initial release
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ComparatorIn.lib Sun Jun 16 19:54:01 2013 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/frankvnk/code/ComparatorIn/#f340e0545b53
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TEMT6200.lib Sun Jun 16 19:54:01 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/frankvnk/code/TEMT6200/#55136b956b17
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sun Jun 16 19:54:01 2013 +0000
@@ -0,0 +1,54 @@
+#include "TEMT6200.h"
+#include "ComparatorIn.h"
+#include "mbed.h"
+
+void ambi_rise(void); // ISR callback pointer
+void ambi_fall(void); // ISR callback pointer
+
+// RGB LED
+DigitalOut cmpled (LED_GREEN);
+DigitalOut blinky (LED_BLUE);
+
+// Ambient light sensor to comparator plus input = PTC8, min input = 12-bit DAC0
+ComparatorIn compi(PTC8, PTE30);
+
+// Ambient light sensor : PTD5 = enable, PTB0 = analog input
+TEMT6200 ambi(PTD5, PTB0);
+
+int main()
+{
+ // Ambient light detector
+ ambi.pwr(AMB_ON);
+ printf("\n- Ambient light sensor calibration.\n");
+ printf(" Make sure the sensor is obscured .\n");
+ printf(" Press any key to calibrate.\n");
+ getchar();
+ ambi.calibrate(); // Calibrate
+ printf("- Calibration finished.\n");
+
+ // Comparator settings
+ compi.rising(&ambi_rise); // Set comparator rising int callback to ambi_rise
+ compi.falling(&ambi_fall); // Set comparator falling int callback to ambi_fall
+ compi.treshold(ambi.lux_pct(300.0)); // Set ISR treshold to 300lux
+ compi.int_en(1); // Enable comparator interrupt
+
+ cmpled = 1;
+
+ while (1)
+ {
+ printf("%7.2f lux\n",ambi.read());
+ wait(0.5);
+ blinky = !blinky;
+ }
+}
+
+// Comparator callback
+void ambi_rise(void)
+{
+ cmpled = 0; // Green led on.
+}
+
+void ambi_fall(void)
+{
+ cmpled = 1; // Green led off.
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Jun 16 19:54:01 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/b3110cd2dd17 \ No newline at end of file
TEMT6200