diff --git a/inc/template/app_const_llcc68_template.hpp b/inc/template/app_const_llcc68_template.hpp
index 067ca1b..9e9f92e 100644
--- a/inc/template/app_const_llcc68_template.hpp
+++ b/inc/template/app_const_llcc68_template.hpp
@@ -26,6 +26,9 @@ constexpr auto RST_PIN  = NC_PIN;
 constexpr auto DIO1_PIN = GPIO_NUM_NC;
 constexpr auto DIO2_PIN = NC_PIN;
 constexpr auto DIO3_PIN = NC_PIN;
+
+/// @brief the pin numbers that needs to be configured as interrupt
+constexpr gpio_num_t EXTI_PIN[] = {DIO1_PIN};
 }
 
 #endif /* B0CD865F_D860_44B7_B289_4F512C770D2B */
diff --git a/src/llcc68.cpp b/src/llcc68.cpp
index 87990cf..021b650 100644
--- a/src/llcc68.cpp
+++ b/src/llcc68.cpp
@@ -20,9 +20,13 @@ void init_exti() {
 		details::__dio_flag__ = true;
 	};
 
+	uint64_t pin_bit_mask = 0;
+	for (const auto pin : EXTI_PIN) {
+		pin_bit_mask |= (1ULL << pin);
+	}
 
 	gpio_config_t io_conf = {
-		.pin_bit_mask = (1ULL << DIO2_PIN),
+		.pin_bit_mask = pin_bit_mask,
 		.mode         = GPIO_MODE_INPUT,
 		.pull_up_en   = GPIO_PULLUP_DISABLE,
 		.pull_down_en = GPIO_PULLDOWN_DISABLE,
@@ -31,6 +35,8 @@ void init_exti() {
 	// https://github.com/espressif/esp-idf/blob/v5.3.2/examples/peripherals/gpio/generic_gpio/main/gpio_example_main.c
 	ESP_ERROR_CHECK(gpio_config(&io_conf));
 	gpio_install_isr_service(ESP_INTR_FLAG_DEFAULT);
-	gpio_isr_handler_add(DIO2_PIN, isr, nullptr);
+	for (const auto pin : EXTI_PIN) {
+		gpio_isr_handler_add(pin, isr, nullptr);
+	}
 }
 }