Revision 8:0067469c3389, committed 2017-09-19

Comitter:

tvlogman

Date:

Tue Sep 19 14:50:53 2017 +0000

Parent:

7:1bffab95fc5f

Child:

9:5f0e796c9489

Commit message:

Using Hidscope to read LED brightness - not screwed up (yet)

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HIDScope.lib	Tue Sep 19 14:50:53 2017 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/tomlankhorst/code/HIDScope/#d23c6edecc49

--- a/main.cpp	Tue Sep 19 14:17:30 2017 +0000
+++ b/main.cpp	Tue Sep 19 14:50:53 2017 +0000
@@ -1,11 +1,35 @@
 #include "mbed.h"
 #include "MODSERIAL.h"
+#include "HIDScope.h"
+
+HIDScope scope(2);
+
+Ticker AInTicker;
+AnalogIn aIn1(A0);
+
+volatile float x;
+volatile float x_prev =0; 
+volatile float y; // filtered 'output' of ReadAnalogInAndFilter 
+volatile float ledBrightness = 0.00;
+
+void ReadAnalogInAndFilter()
+{
+        x = ledBrightness;   // Capture data
+        scope.set(0, x);   // store data in first element of scope memory
+        y = (x_prev + x)/2.0;   // averaging filter
+        scope.set(1, y);  // store data in second element of scope memory
+        x_prev = x; // Prepare for next round
+    
+        scope.send(); // send what's in scope memory to PC
+}
 
 PwmOut ledPwm(D5);
 float pwmPeriod = 1.0/5000.0;
 
 AnalogIn pot(A5);
-DigitalIn button(D3);
+DigitalIn button1(D3);
+DigitalIn button2(D6);
+
 
 MODSERIAL pc(USBTX, USBRX);
 
@@ -14,18 +38,23 @@
 {
     
     pc.baud(115200);
-    pc.printf("Hello World!\r\n");
-    
+    AInTicker.attach(&ReadAnalogInAndFilter, 0.01);
     ledPwm.period(pwmPeriod);
     
-    
     while (true) {
-        float potMeterValue = pot.read();
-        ledPwm = potMeterValue;
+        if(!button1){
+            if(ledBrightness >= 0.05){
+                ledBrightness = ledBrightness - 0.05;                
+                }
+            }
+        if(!button2){
+            if(ledBrightness <= 0.95){
+                ledBrightness = ledBrightness + 0.05;
+                }
+            }
+        ledPwm = ledBrightness;
         wait(0.1f);
         
-        
-
     }
     
 }