Reset using Arduino Pin 51 to the RST pin on the WT32i.
Just a straight wire is all that's needed, because the internal PULLUP is weak enough to not hurt anything.

Code:
 void setup()
 {
+  pinMode(51, INPUT_PULLUP);
+  delay(300);
+  digitalWrite(51, LOW);
+  pinMode(51, OUTPUT);
+  digitalWrite(51, LOW);
+  delay(50);
+  pinMode(51, INPUT);
+