Alessio Periloso / Mbed 2 deprecated Flicker_Fusion_Threshold_Test

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Dependencies:   mbed

Diff: main.cpp

Revision:
0:cb4d2080abfb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Dec 13 13:49:57 2016 +0000
@@ -0,0 +1,31 @@
+#include "mbed.h"
+
+uint8_t LED_FREQ=5;
+
+void pressed(void);
+
+DigitalOut myled(LED1);
+InterruptIn event(USER_BUTTON);
+
+int main() {
+    printf("Flicker Fusion Threshold Test\n");
+    printf("Frequency: %uhz\n", LED_FREQ);
+    
+    event.fall(&pressed);   // Increase frequency when button is pressed.
+
+    while(1) {
+        myled = 1;          // Turn ON the led
+        wait((float) 1 / LED_FREQ);
+        myled = 0;          // Turn OFF the led
+        wait((float) 1 / LED_FREQ);
+    }
+}
+
+void pressed(void)
+{
+    // Increase frequency in 5hz steps; max = 100hz
+    LED_FREQ = (LED_FREQ >= 100 ? LED_FREQ = 5 : LED_FREQ+=5);
+    
+    // Print to serial the new frequency
+    printf("Frequency: %uhz\n", LED_FREQ);
+}
\ No newline at end of file