Zainul Charbiwala / Mbed 2 deprecated TouchSense

Using a capacitor to implement a touch sensitive \"button\"

Dependencies:   mbed

Diff: main.cpp

Revision:
0:1d63f10fba0a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Oct 19 00:08:04 2010 +0000
@@ -0,0 +1,35 @@
+#include "mbed.h"
+
+#define numsamples 1
+int touchSense(void);
+
+DigitalOut myled(LED1);
+AnalogIn input(p20);
+DigitalIn charger(p19);
+DigitalOut ground(p18);
+Serial pc(USBTX, USBRX); // tx, rx
+    
+int main() {
+  while(1) {
+    if (touchSense()) {
+        myled = 1;
+    } else {
+        myled = 0;
+    }
+  wait(0.005);
+  }
+}
+
+int touchSense(void)
+{
+    float sample;
+    ground = 0;
+    charger.mode(PullUp);
+    charger.mode(PullNone);
+    sample=input.read();
+    if (sample < 0.3) {
+        return 1;
+    } else {
+        return 0;
+    }
+}