David Anasco
/
FTHR_HelloWorld
blinks various LED when pushing a button. no external components needed.
Revision 1:2b22aebf8622, committed 2021-07-14
- Comitter:
- davidanasco
- Date:
- Wed Jul 14 07:18:30 2021 +0000
- Parent:
- 0:c2dd4b719b00
- Commit message:
- debug'd and commented
Changed in this revision
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/main.cpp Wed Jul 14 06:13:34 2021 +0000 +++ b/main.cpp Wed Jul 14 07:18:30 2021 +0000 @@ -1,57 +1,64 @@ #include "mbed.h" #include "max32630fthr.h" -MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3); +MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3); // set signal levels to 3v3 -DigitalOut redLED(LED1); +DigitalOut redLED(LED1); // declare outputs DigitalOut greenLED(LED2); DigitalOut blueLED(LED3); -DigitalIn pushButton(P2_3, PullUp); + +DigitalIn pushButton(P2_3, PullUp); // declare input. and set it to hi by default. int main(){ - printf("So it has begun...\r\n"); + printf("So it has begun...\r\n"); // send message thru serial (view with laptop terminal) + wait(1); // wait 1 second redLED = LED_OFF; greenLED = LED_OFF; blueLED = LED_OFF; int roundabout = 0; while(1){ - wait(10); if(pushButton==0){ - roundabout++; + roundabout++; // every push, increment color selector by 1 + // reset to dark before changing color redLED = LED_OFF; greenLED = LED_OFF; blueLED = LED_OFF; - - switch(roundabout){ + + switch(roundabout){ // asks what will the new color be case 1: - redLED = LED_ON; + redLED = LED_ON; // red only break; case 2: - greenLED = LED_ON; + greenLED = LED_ON; // green only break; case 3: - blueLED = LED_ON; + blueLED = LED_ON; // blue only break; case 4: - redLED = LED_ON; + redLED = LED_ON; // yellow greenLED = LED_ON; break; case 5: - greenLED = LED_ON; + greenLED = LED_ON; // aqua blueLED = LED_ON; + break; case 6: - blueLED = LED_ON; + blueLED = LED_ON; // purple redLED = LED_ON; break; case 7: - redLED = LED_ON; + redLED = LED_ON; // white greenLED = LED_ON; blueLED = LED_ON; break; + default: + roundabout = 0; // reset back to dark + break; } + wait(1); // wait 1 second before taking input signal again. without this, colors would switch very fast } } }