more led stuff

src/counter.c

@@ -29,6 +29,7 @@ void isr() {
   lastCounter = currentCounter;
 
   ringbufferPut(diff);
+  led(E_GREEN, true);
 }
 
 void init() {
@@ -65,13 +66,20 @@ int main (void) {
   influxInit(&cfg);
   start();
 
-  
+
+  uint32_t ledTick = 0;  
   while (1) {
     uint32_t diff = ringbufferGet();
   
     double f = 1.0 / (((double) diff) / 1000000.0);
 //    printf("%f\n", f);
     influxAddFrequency(f);
+
+    ledTick++;
+    if (ledTick == 100) {
+      ledTick = 0;
+      led(E_GREEN, false);
+    }
   }
 
   // will never be reached