tested interrupts on GPIOs 2, 12

src/main.cpp

@@ -42,7 +42,10 @@ void timerCallback(void *pArg)
 }
 
 // ===============================================
-
+uint8_t inter = 0;
+ICACHE_RAM_ATTR void int_test(){
+  inter = 1;
+}
 
 void setup() {
 #ifdef WITH_DEBUGGING_ON
@@ -84,6 +87,8 @@ void setup() {
 
   stairs.setup();
   Serial.println("PCA9685 connected !");
+  //attachInterrupt(digitalPinToInterrupt(2), int_test, RISING);
+  //attachInterrupt(digitalPinToInterrupt(12), int_test, RISING);
 
   os_timer_setfn(&timer1, timerCallback, &timer_flag);
   os_timer_arm(&timer1, 20, true);
@@ -106,6 +111,10 @@ void loop() {
   //   stairs.setDirection(!stairs.getDirection());
   //   stairs.setState(1);
   // }
+  if(inter){
+    Serial.printf("interrupt\n");
+    inter = 0;
+  }
   if(c++%1000000 == 0)
     httpServer.logt("[%d] starting :)\n", c);