István Cserny
/
Lab04_reaction_time
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Revision 0:a64eae449008, committed 2021-11-11
- Comitter:
- cspista
- Date:
- Thu Nov 11 14:41:07 2021 +0000
- Commit message:
- Final revision
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r a64eae449008 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Nov 11 14:41:07 2021 +0000
@@ -0,0 +1,26 @@
+#include "mbed.h"
+Serial pc(USBTX,USBRX);
+DigitalOut myled(LED1); //define LED
+DigitalIn mybutton(BUTTON1,PullUp); //define pushbutton input with pull-up
+Timer t; //define timer
+int x; //x for random number storage
+
+int main() {
+ pc.baud(115200);
+ myled = 0; //LED is initially off
+ pc.printf("\r\nReaction test!\r\n");
+ pc.printf("Push the button when the LED is on!\r\n");
+ while(1) {
+ t.reset(); //reset the timer
+ while(!mybutton); //wait for button release
+ x=rand()%2000; //generate random number 0-2000
+ wait_ms(1000+x); //wait random time between 1 and 3 seconds
+ t.start(); //start the timer
+ myled=1; //LED on
+ while(mybutton); //wait for press
+ t.stop(); //stop the timer
+ myled=0; //LED off
+ wait_ms(20); //debounce delay
+ printf("The time taken was %f seconds\r\n", t.read());
+ }
+}
\ No newline at end of file
diff -r 000000000000 -r a64eae449008 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Nov 11 14:41:07 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file