diff --git a/08_irq_handling/Makefile b/08_irq_handling/Makefile
new file mode 100644
index 0000000..cd18352
--- /dev/null
+++ b/08_irq_handling/Makefile
@@ -0,0 +1,12 @@
+ORANGEKERN ?= ~/Orange/buildroot-2021.11.1/output/build/linux-5.12.2/ #relative path
+LOCALKERN ?= /lib/modules/$(shell uname -r)/build
+
+obj-m := irq_module.o
+
+all: clean build
+
+build:
+	$(MAKE) -C $(ORANGEKERN) M=$(PWD) modules
+
+clean:
+	$(MAKE) -C $(ORANGEKERN) M=$(PWD) clean
diff --git a/08_irq_handling/irq_module.c b/08_irq_handling/irq_module.c
new file mode 100644
index 0000000..8c761b4
--- /dev/null
+++ b/08_irq_handling/irq_module.c
@@ -0,0 +1,65 @@
+#define pr_fmt(fmt) "%s: " fmt, KBUILD_MODNAME
+#define MOD_AUTHOR "Artem Shyshko"
+#define MOD_LICENSE "GPL"
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+
+#define GPIO_NUMBER(port, bit) (32 * (port) + (bit))
+#define LED_RED GPIO_NUMBER(0, 17)
+
+static int irq, dev_id = 1;
+static int ledr_gpio = -1;
+static bool irq_count = false;
+
+module_param(irq, int, S_IRUGO);
+
+static irqreturn_t timer_interrupt(int irq, void* dev_id)
+{
+	irq_count = !irq_count;
+	gpio_set_value(ledr_gpio, irq_count);
+	return IRQ_NONE;
+}
+
+static int led_gpio_init(int gpio, int *led_gpio)
+{
+	int res;
+
+	res = gpio_direction_output(gpio, 0);
+	if (res != 0)
+		return res;
+
+	*led_gpio = gpio;
+	return 0;
+}
+
+static int proc_init(void)
+{
+	int res = 0;
+	if (request_irq(irq, timer_interrupt, IRQF_SHARED, "interrupt", &dev_id)) {
+		res = -1;
+		pr_info("Error while loading\n");
+	} else {
+		pr_info("Module loaded, %d\n", irq);
+		res = led_gpio_init(LED_RED, &ledr_gpio);
+		if (res != 0)
+			pr_err("Can't set GPIO%d for output\n", LED_RED);
+	}
+	return res;
+}
+
+static void proc_exit(void)
+{
+	synchronize_irq(irq);
+	free_irq(irq, &dev_id);
+	gpio_set_value(ledr_gpio, 0);
+	pr_info("Module exited\n");
+}
+
+module_init(proc_init);
+module_exit(proc_exit);
+
+MODULE_AUTHOR(MOD_AUTHOR);
+MODULE_LICENSE(MOD_LICENSE);
diff --git a/08_irq_handling/irq_module.ko b/08_irq_handling/irq_module.ko
new file mode 100644
index 0000000..f824966
Binary files /dev/null and b/08_irq_handling/irq_module.ko differ
diff --git a/08_irq_handling/led_mod.c b/08_irq_handling/led_mod.c
deleted file mode 100644
index 5444623..0000000
--- a/08_irq_handling/led_mod.c
+++ /dev/null
@@ -1,154 +0,0 @@
-#define pr_fmt(fmt) KBUILD_MODNAME ": %s: " fmt, __func__
-
-#include <linux/module.h>
-#include <linux/gpio.h>
-#include <linux/ktime.h>
-#include <linux/interrupt.h>
-
-#define GPIO_NUMBER(port, bit) (32 * (port) + (bit))
-
-/*	https://linux-sunxi.org/Xunlong_Orange_Pi_PC#LEDs
- *  Board config for OPI-PC:
- *	LED GREEN (PL10): GPIO_11_10
- *	LED RED   (PA15): GPIO_0_15  
- *	BUTTON    (PG7) : GPIO_6_7
- *
- *  https://linux-sunxi.org/Xunlong_Orange_Pi_Zero#LEDs
- *  Board config for OPI-Zero:
- *	LED GREEN (PL10): GPIO_11_10 
- *	LED RED   (PA17): GPIO_0_17 
- *	BUTTON    (PG7) : GPIO_6_7
- *  
- */
-
-#define LED_GREEN GPIO_NUMBER(11, 10)
-#define LED_RED GPIO_NUMBER(0, 15)
-#define BUTTON GPIO_NUMBER(6, 7)
-
-//#define TIMER_ENABLE 1
-
-static int ledg_gpio = -1;
-static int ledr_gpio = -1;
-static int button_gpio = -1;
-static int button_state = -1;
-static int button_cnt = -1;
-
-#ifdef TIMER_ENABLE
-static ktime_t timer_period;
-struct hrtimer button_timer;
-
-static enum hrtimer_restart timer_callback(struct hrtimer *timer)
-{
-	int cur_button_state;
-
-	cur_button_state = gpio_get_value(button_gpio);
-	button_cnt = (cur_button_state == button_state) ? (button_cnt + 1) : 0;
-	button_state = cur_button_state;
-	gpio_set_value(ledr_gpio, ((button_cnt == 20) ? 1 : 0));
-	if (button_cnt >= 20)
-		gpio_set_value(ledg_gpio, !button_state);
-	hrtimer_forward(timer, timer->base->get_time(), timer_period);
-	return HRTIMER_RESTART;  //restart timer
-}
-#endif
-
-static int led_gpio_init(int gpio, int *led_gpio)
-{
-	int res;
-
-	res = gpio_direction_output(gpio, 0);
-	if (res != 0)
-		return res;
-
-	*led_gpio = gpio;
-	return 0;
-}
-
-static int button_gpio_init(int gpio)
-{
-	int res;
-
-	res = gpio_request(gpio, "Onboard user button");
-	if (res != 0)
-		return res;
-
-	res = gpio_direction_input(gpio);
-	if (res != 0)
-		goto err_input;
-
-	button_gpio = gpio;
-	pr_info("Init GPIO%d OK\n", button_gpio);
-	button_state = gpio_get_value(button_gpio);
-	button_cnt = 0;
-
-	return 0;
-
-err_input:
-	gpio_free(gpio);
-	return res;
-}
-
-static void button_gpio_deinit(void)
-{
-	if (button_gpio >= 0) {
-		gpio_free(button_gpio);
-		pr_info("Deinit GPIO%d\n", button_gpio);
-	}
-}
-
-/* Module entry/exit points */
-static int __init gpio_poll_init(void)
-{
-	int res;
-	pr_info("GPIO Init\n");
-
-	res = button_gpio_init(BUTTON);
-	if (res != 0) {
-		pr_err("Can't set GPIO%d for button\n", BUTTON);
-		return res;
-	}
-#ifdef TIMER_ENABLE
-	timer_period = ktime_set(0, 1000000);      /*1 msec*/
-	hrtimer_init(&button_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	hrtimer_start(&button_timer, timer_period, HRTIMER_MODE_REL);
-	button_timer.function = timer_callback;
-#endif
-	res = led_gpio_init(LED_GREEN, &ledg_gpio);
-	if (res != 0) {
-		pr_err("Can't set GPIO%d for output\n", LED_GREEN);
-		goto err_led;
-	}
-
-	gpio_set_value(ledg_gpio, 0);
-
-	res = led_gpio_init(LED_RED, &ledr_gpio);
-	if (res != 0) {
-		pr_err("Can't set GPIO%d for output\n", LED_RED);
-		goto err_led;
-	}
-	gpio_set_value(ledr_gpio, 1);
-
-	return 0;
-
-err_led:
-	button_gpio_deinit();
-	return res;
-}
-
-static void __exit gpio_poll_exit(void)
-{
-	gpio_set_value(ledg_gpio, 0);
-	gpio_set_value(ledr_gpio, 0);
-	button_gpio_deinit();
-#ifdef TIMER_ENABLE
-	hrtimer_cancel(&button_timer);
-#endif
-}
-
-module_init(gpio_poll_init);
-module_exit(gpio_poll_exit);
-
-MODULE_AUTHOR("Oleksandr Posukhov oleksandr.posukhov@gmail.com>");
-MODULE_DESCRIPTION("LED Test");
-MODULE_LICENSE("GPL");
-MODULE_VERSION("0.1");
\ No newline at end of file