diff --git a/applications/applications.h b/applications/applications.h
index 673ed461..0759eb6c 100644
--- a/applications/applications.h
+++ b/applications/applications.h
@@ -33,6 +33,7 @@ void nfc_task(void* p);
 void irukagotchi_task(void* p);
 void power_task(void* p);
 void application_vibro(void* p);
+void app_gpio_test(void* p);
 
 const FlipperStartupApp FLIPPER_STARTUP[] = {
 #ifdef APP_DISPLAY
@@ -109,7 +110,14 @@ const FlipperStartupApp FLIPPER_STARTUP[] = {
 #ifdef APP_SPEAKER_DEMO
     {.app = coreglitch_demo_0, .name = "coreglitch_demo_0", .libs = {0}},
 #endif
-};
+
+#ifdef APP_GPIO_DEMO
+    {
+        .app = app_gpio_test,
+        .name = "gpio test",
+        .libs = {1, FURI_LIB{"gui_task"}},
+#endif
+    };
 
 const FlipperStartupApp FLIPPER_APPS[] = {
 #ifdef BUILD_EXAMPLE_BLINK
@@ -143,4 +151,8 @@ const FlipperStartupApp FLIPPER_APPS[] = {
 #ifdef BUILD_VIBRO_DEMO
     {.app = application_vibro, .name = "application_vibro", .libs = {1, FURI_LIB{"input_task"}}},
 #endif
+
+#ifdef BUILD_GPIO_DEMO
+    {.app = app_gpio_test, .name = "gpio test", .libs = {1, FURI_LIB{"gui_task"}}},
+#endif
 };
\ No newline at end of file
diff --git a/applications/applications.mk b/applications/applications.mk
index 2bd65f9c..16a20cc0 100644
--- a/applications/applications.mk
+++ b/applications/applications.mk
@@ -20,6 +20,7 @@ BUILD_CC1101 = 1
 BUILD_LF_RFID = 1
 BUILD_SPEAKER_DEMO = 1
 BUILD_VIBRO_DEMO = 1
+BUILD_GPIO_DEMO = 1
 endif
 
 APP_NFC ?= 0
@@ -212,6 +213,17 @@ C_SOURCES	+= $(wildcard $(APP_DIR)/examples/vibro.c)
 APP_INPUT = 1
 endif
 
+APP_GPIO_DEMO ?= 0
+ifeq ($(APP_GPIO_DEMO), 1)
+CFLAGS		+= -DAPP_GPIO_DEMO
+BUILD_GPIO_DEMO = 1
+endif
+BUILD_GPIO_DEMO ?= 0
+ifeq ($(BUILD_GPIO_DEMO), 1)
+CFLAGS		+= -DBUILD_GPIO_DEMO
+C_SOURCES	+= $(wildcard $(APP_DIR)/gpio-tester/*.c)
+endif
+
 # device drivers
 
 APP_GUI	?= 0
diff --git a/applications/gpio-tester/gpio-tester.c b/applications/gpio-tester/gpio-tester.c
new file mode 100644
index 00000000..8fad7ade
--- /dev/null
+++ b/applications/gpio-tester/gpio-tester.c
@@ -0,0 +1,128 @@
+#include "flipper_v2.h"
+
+typedef struct {
+    const char* name;
+    GpioPin pin;
+} GpioItem;
+
+const GpioItem GPIO_PINS[] = {
+    {"1.2: PA7", {GPIOA, GPIO_PIN_7}},
+    {"1.3: PA6", {GPIOA, GPIO_PIN_6}},
+    {"1.4: PA5", {GPIOA, GPIO_PIN_5}},
+    {"1.5: PA4", {GPIOA, GPIO_PIN_4}},
+    {"1.6: PB2", {GPIOB, GPIO_PIN_2}},
+    {"1.7: PC3", {GPIOC, GPIO_PIN_3}},
+
+    {"2.7: PC1", {GPIOC, GPIO_PIN_1}},
+    {"2.8: PC0", {GPIOC, GPIO_PIN_0}},
+};
+
+typedef enum {
+    EventTypeTick,
+    EventTypeKey,
+} EventType;
+
+typedef struct {
+    union {
+        InputEvent input;
+    } value;
+    EventType type;
+} AppEvent;
+
+typedef struct {
+    uint8_t gpio_index;
+} State;
+
+static void render_callback(CanvasApi* canvas, void* ctx) {
+    State* state = (State*)acquire_mutex((ValueMutex*)ctx, 25);
+
+    canvas->clear(canvas);
+    canvas->set_color(canvas, ColorBlack);
+    canvas->set_font(canvas, FontPrimary);
+    canvas->draw_str(canvas, 2, 10, "GPIO demo");
+    canvas->set_font(canvas, FontSecondary);
+    canvas->draw_str(canvas, 2, 25, GPIO_PINS[state->gpio_index].name);
+
+    release_mutex((ValueMutex*)ctx, state);
+}
+
+static void input_callback(InputEvent* input_event, void* ctx) {
+    osMessageQueueId_t event_queue = (QueueHandle_t)ctx;
+
+    AppEvent event;
+    event.type = EventTypeKey;
+    event.value.input = *input_event;
+    osMessageQueuePut(event_queue, &event, 0, 0);
+}
+
+void app_gpio_test(void* p) {
+    osMessageQueueId_t event_queue = osMessageQueueNew(1, sizeof(AppEvent), NULL);
+    furi_check(event_queue);
+
+    State _state;
+    _state.gpio_index = 0;
+
+    ValueMutex state_mutex;
+    if(!init_mutex(&state_mutex, &_state, sizeof(State))) {
+        printf("[gpio-tester] cannot create mutex\n");
+        furiac_exit(NULL);
+    }
+
+    Widget* widget = widget_alloc();
+
+    widget_draw_callback_set(widget, render_callback, &state_mutex);
+    widget_input_callback_set(widget, input_callback, event_queue);
+
+    // Open GUI and register widget
+    GuiApi* gui = (GuiApi*)furi_open("gui");
+    if(gui == NULL) {
+        printf("[gpio-tester] gui is not available\n");
+        furiac_exit(NULL);
+    }
+    gui->add_widget(gui, widget, GuiLayerFullscreen);
+
+    // configure pin
+    for(uint8_t i = 0; i < sizeof(GPIO_PINS) / sizeof(GPIO_PINS[0]); i++) {
+        gpio_init((GpioPin*)&GPIO_PINS[i].pin, GpioModeOutputPushPull);
+    }
+
+    gpio_init((GpioPin*)&led_gpio[1], GpioModeOutputOpenDrain);
+
+    AppEvent event;
+    while(1) {
+        osStatus_t event_status = osMessageQueueGet(event_queue, &event, NULL, 150);
+        State* state = (State*)acquire_mutex_block(&state_mutex);
+
+        if(event_status == osOK) {
+            if(event.type == EventTypeKey) {
+                if(event.value.input.state && event.value.input.input == InputBack) {
+                    printf("[gpio-tester] bye!\n");
+                    // TODO remove all widgets create by app
+                    widget_enabled_set(widget, false);
+                    furiac_exit(NULL);
+                }
+
+                if(event.value.input.state && event.value.input.input == InputRight) {
+                    if(state->gpio_index < (sizeof(GPIO_PINS) / sizeof(GPIO_PINS[0]) - 1)) {
+                        state->gpio_index++;
+                    }
+                }
+
+                if(event.value.input.state && event.value.input.input == InputLeft) {
+                    if(state->gpio_index > 0) {
+                        state->gpio_index--;
+                    }
+                }
+
+                if(event.value.input.input == InputOk) {
+                    gpio_write(
+                        (GpioPin*)&GPIO_PINS[state->gpio_index].pin, event.value.input.state);
+                    gpio_write((GpioPin*)&led_gpio[1], !event.value.input.state);
+                }
+            }
+        }
+
+        release_mutex(&state_mutex, state);
+        widget_update(widget);
+    }
+}