Temi Solesi
/
1620_App_Board_Buttons
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Fork of
1620_App_Board_Buttons
by 
Craig Evans
Revision 0:2f4ee2a22324, committed 2017-02-17
- Comitter:
- eencae
- Date:
- Fri Feb 17 11:13:02 2017 +0000
- Child:
- 1:f650db6c33e4
- Commit message:
- Initial commit.
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 |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Feb 17 11:13:02 2017 +0000
@@ -0,0 +1,44 @@
+/* ELEC1620 Application Board Example
+
+Buttons
+
+(c) Dr Craig A. Evans, University of Leeds, Feb 2017
+
+*/
+
+#include "mbed.h"
+
+DigitalIn button_A(p29);
+DigitalIn button_B(p28);
+DigitalIn button_C(p27);
+DigitalIn button_D(p26);
+
+int main() {
+
+ while(1) {
+
+ // read each of the buttons and store in variable
+ int button_A_value = button_A.read();
+ // int button_A_value = button_A; // this is equivalent
+ int button_B_value = button_B.read();
+ int button_C_value = button_C.read();
+ int button_D_value = button_D.read();
+
+ // check if pressed (value will be 1 i.e. true) and print message
+ if (button_A_value) {
+ printf("Button A is pressed\n");
+ }
+ if (button_B_value) {
+ printf("Button B is pressed\n");
+ }
+ if (button_C_value) {
+ printf("Button C is pressed\n");
+ }
+ if (button_D_value) {
+ printf("Button D is pressed\n");
+ }
+
+ wait(0.5); // small delay - won't be able to read button during delay
+
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Feb 17 11:13:02 2017 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/ef9c61f8c49f \ No newline at end of file