Fix misstake.

src/main.c

@@ -344,6 +344,7 @@ static void ina_Process(virtual_timer_t *vtp, void *p) {
       if (idx < 9) {
         idx ++;
       } else {
+        idx = 0;
         secCurrent = (sumCurrent + 5) / 10;
         sumCurrent = 0;
         secVoltage = (sumVoltage + 5) / 10;