Ivan Chavez
Lights blink when a magnet is detected
Revision 0:f556205c07a6, committed 2019-04-29
- Comitter:
- m211002
- Date:
- Mon Apr 29 17:16:18 2019 +0000
- Commit message:
- Light blinks when a magnet is detected
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 f556205c07a6 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Apr 29 17:16:18 2019 +0000
@@ -0,0 +1,39 @@
+#include "mbed.h"
+Serial pc(USBTX,USBRX);
+
+// Hall effect sensor
+DigitalIn hall(p21);
+DigitalOut hallpwr(p22);
+
+InterruptIn event(p21);
+DigitalOut led1(LED1);
+DigitalOut led4(LED4);
+
+int hallvalue;
+int hallstatus=0;
+void trigger()
+{
+ while (hallstatus!=0) {
+ led1=1;
+ wait(1);
+ led1=0;
+ hallstatus=0;
+ }
+}
+int main()
+{
+ hall.mode(PullUp);
+ hallpwr=0;
+ wait(0.2);
+ hallpwr =1;
+ wait(0.2);
+ event.rise(&trigger);
+ while(1) {
+ hallvalue=hall.read();
+ if (hallvalue==1) {
+ hallstatus=1;
+ }
+ pc.printf("hallvalues:%d\n\r",hallvalue);
+ wait(0.25);
+ }
+}
diff -r 000000000000 -r f556205c07a6 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Apr 29 17:16:18 2019 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file