István Cserny
/
Lab03_TCRT5000
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Revision 0:14d1482ba244, committed 2021-11-02
- Comitter:
- cspista
- Date:
- Tue Nov 02 06:16:16 2021 +0000
- Commit message:
- Final version
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 Tue Nov 02 06:16:16 2021 +0000
@@ -0,0 +1,35 @@
+#include "mbed.h"
+
+AnalogIn cds(A0); // Analog input at PA0
+DigitalOut led(D10); // Led contolled by D10
+
+uint32_t measLight(int nmeas)
+{
+ uint32_t sum0, sum1, diff;
+ led = 0;
+ sum0 = 0;
+ for (int i = 0; i < nmeas; i++) {
+ sum0 += cds.read_u16();
+ }
+ led = 1;
+ sum1 = 0;
+ for (int i = 0; i < nmeas; i++) {
+ sum1 += cds.read_u16();
+ }
+ if (sum0 > sum1) {
+ diff= 0;
+ } else {
+ diff = (sum1 - sum0) / nmeas;
+ }
+ printf("L1: %5d L0: %5d Diff: %5d\r\n",sum1/nmeas, sum0/nmeas, diff);
+ return diff;
+}
+
+int main()
+{
+ printf("\r\n Lab03_light_sensor - with averaging\r\n");
+ while(1) {
+ measLight(1000);
+ wait(2);
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Nov 02 06:16:16 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file