Jake Greaves / Mbed 2 deprecated Laser_Maze_Comparator

Working laser maze comparator. Solar cells need to be connected with ground and the +ve line connected to A0 - A4. These correspond to the output on D6-D2 respectively. Reseting the nucleo takes a base reading of the solar cells. This base reading is used, along with the #define OFFSET value to either output a 0 or a 1 if the solar cell value is over the first reading + offset.

Dependencies:   mbed

Diff: main.cpp

Revision:
2:87c34bb330c2
Parent:
1:59475336cb66
--- a/main.cpp	Mon Jan 08 18:19:51 2018 +0000
+++ b/main.cpp	Thu Nov 29 12:43:39 2018 +0000
@@ -26,14 +26,16 @@
 //array of digital channels
 DigitalOut doutChannels[CHANNEL_COUNT] = {Dout0, Dout1, Dout2, Dout3, Dout4};
 
+Serial pc(PA_11, PA_12);
 
 int main() {
     //read value of analog channels
     float meas;
-    
+    pc.printf("Hello World !\n");
     //calibrate to ambient light, adding offset to find the thresholds
     for(int i = 0; i < CHANNEL_COUNT; i++) {
         initialValues[i] = (ainChannels[i].read() * 3300) + OFFSET;
+        //pc.printf("initial %d = %.0f mV\n", i, initialValues[i]);
     }
     
     while(1) {
@@ -42,7 +44,7 @@
             //find channels current value
             meas = ainChannels[i].read(); // Converts and read the analog input value (value from 0.0 to 1.0)
             meas = meas * 3300; // Change the value to be in the 0 to 3300 range
-            printf("measure %d = %.0f mV\n", i, meas);
+            pc.printf("measure %d = %.0f mV\n", i, meas);
             if (meas > initialValues[i]) { // If the value is greater than 2V then switch the LED on
               doutChannels[i] = 1;
             }