i have no idea what i'm doing

but it works

.gitignore

@@ -1,3 +1 @@
 
-gpio_item.c
-gpio_item.h

gpio_item.c

@@ -0,0 +1,51 @@
+#include "gpio_item.h"
+
+#include <furi_hal_resources.h>
+
+typedef struct {
+    const char* name;
+    const GpioPin* pin;
+} GpioItem;
+
+static const GpioItem gpio_item[GPIO_ITEM_COUNT] = {
+    {"1.2: PA7", &gpio_ext_pa7},
+    {"1.3: PA6", &gpio_ext_pa6},
+    {"1.4: PA4", &gpio_ext_pa4},
+    {"1.5: PB3", &gpio_ext_pb3},
+    {"1.6: PB2", &gpio_ext_pb2},
+    {"1.7: PC3", &gpio_ext_pc3},
+    {"2.7: PC1", &gpio_ext_pc1},
+    {"2.8: PC0", &gpio_ext_pc0},
+};
+
+void gpio_item_configure_pin(uint8_t index, GpioMode mode) {
+    furi_assert(index < GPIO_ITEM_COUNT);
+    furi_hal_gpio_write(gpio_item[index].pin, false);
+    furi_hal_gpio_init(gpio_item[index].pin, mode, GpioPullNo, GpioSpeedVeryHigh);
+}
+
+void gpio_item_configure_all_pins(GpioMode mode) {
+    for(uint8_t i = 0; i < GPIO_ITEM_COUNT; i++) {
+        gpio_item_configure_pin(i, mode);
+    }
+}
+
+void gpio_item_set_pin(uint8_t index, bool level) {
+    furi_assert(index < GPIO_ITEM_COUNT);
+    furi_hal_gpio_write(gpio_item[index].pin, level);
+}
+
+void gpio_item_set_all_pins(bool level) {
+    for(uint8_t i = 0; i < GPIO_ITEM_COUNT; i++) {
+        gpio_item_set_pin(i, level);
+    }
+}
+
+const char* gpio_item_get_pin_name(uint8_t index) {
+    furi_assert(index < GPIO_ITEM_COUNT + 1);
+    if(index == GPIO_ITEM_COUNT) {
+        return "ALL";
+    } else {
+        return gpio_item[index].name;
+    }
+}

gpio_item.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <furi_hal_gpio.h>
+
+#define GPIO_ITEM_COUNT 8
+
+void gpio_item_configure_pin(uint8_t index, GpioMode mode);
+
+void gpio_item_configure_all_pins(GpioMode mode);
+
+void gpio_item_set_pin(uint8_t index, bool level);
+
+void gpio_item_set_all_pins(bool level);
+
+const char* gpio_item_get_pin_name(uint8_t index);