Add radio_scanner from https://github.com/xMasterX/all-the-plugins

git-subtree-dir: radio_scanner
git-subtree-mainline: acc0b8ebfa4687ff865d03717b45a72683b42b3c
git-subtree-split: 33988a1f17d84368dd3ebb285cb5f719f6ff4309

radio_scanner/.gitattributes

@@ -0,0 +1,2 @@
+# Auto detect text files and perform LF normalization
+* text=auto

radio_scanner/.gitignore

@@ -0,0 +1,7 @@
+dist/*
+.vscode
+.clang-format
+.clangd
+.editorconfig
+.env
+.ufbt

radio_scanner/.gitsubtree

@@ -0,0 +1,2 @@
+https://github.com/xMasterX/all-the-plugins dev base_pack/radio_scanner e7a5fb24f091746d1dce138de2041d070a2902e0
+https://github.com/RocketGod-git/Flipper-Zero-Radio-Scanner main /

radio_scanner/LICENSE

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+GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

radio_scanner/README.md

@@ -0,0 +1,14 @@
+# Flipper-Zero-Radio-Scanner
+
+## 📻 Description
+Scans frequencies available to the CC1101 and plays them over the speaker so you can hear them.
+- Does NOT play "FM radio stations" since those frequencies are not available.
+
+## 📸 Screenshots
+![Screenshot1](https://github.com/user-attachments/assets/447bb455-89ae-4a16-8d3b-543a1b67016a)
+
+
+## 🤔 ToDo
+- Currently using FM238 (FuriHalSubGhzPreset2FSKDev238Async) but per CodeAllNight a custom preset can be used to improve audio.
+
+![rocketgod_logo](https://github.com/RocketGod-git/shodanbot/assets/57732082/7929b554-0fba-4c2b-b22d-6772d23c4a18)

radio_scanner/application.fam

@@ -0,0 +1,15 @@
+App(
+    appid="radio_scanner",
+    name="Radio Scanner",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="radio_scanner_app",
+    requires=["gui", "subghz"],
+    stack_size=2 * 1024,
+    fap_category="Sub-GHz",
+    fap_version="0.2",
+    fap_icon_assets="assets",
+    fap_author="@RocketGod-git",
+    fap_description="Scanner for Flipper",
+    fap_icon="icons/radio_scanner.png",
+    fap_weburl="https://github.com/RocketGod-Git/Flipper-Zero-Radio-Scanner",
+)

radio_scanner/docs/CHANGELOG.md

@@ -0,0 +1,3 @@
+## v0.1
+
+- Initial release by [RocketGod](@RocketGod-git.)

radio_scanner/docs/README.md

@@ -0,0 +1,11 @@
+# Radio Scanner
+
+
+## How it works
+
+Scans frequencies available to the CC1101 and plays them over the speaker so you can hear them.
+Does NOT play "FM radio stations" since those frequencies are not available.
+
+
+## Developer:
+- **RocketGod** (@RocketGod-git)

radio_scanner/radio_scanner_app.c

@@ -0,0 +1,426 @@
+#include "radio_scanner_app.h"
+#include <furi.h>
+#include <furi_hal.h>
+#include <furi_hal_gpio.h>
+#include <gui/elements.h>
+#include <furi_hal_speaker.h>
+#include <subghz/devices/devices.h>
+
+#define TAG "RadioScannerApp"
+
+#define RADIO_SCANNER_DEFAULT_FREQ        433920000
+#define RADIO_SCANNER_DEFAULT_RSSI        (-100.0f)
+#define RADIO_SCANNER_DEFAULT_SENSITIVITY (-85.0f)
+#define RADIO_SCANNER_BUFFER_SZ           32
+
+#define SUBGHZ_FREQUENCY_MIN  300000000
+#define SUBGHZ_FREQUENCY_MAX  928000000
+#define SUBGHZ_FREQUENCY_STEP 10000
+#define SUBGHZ_DEVICE_NAME    "cc1101_int"
+
+static void radio_scanner_draw_callback(Canvas* canvas, void* context) {
+    furi_assert(canvas);
+    furi_assert(context);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Enter radio_scanner_draw_callback");
+#endif
+    RadioScannerApp* app = (RadioScannerApp*)context;
+    canvas_clear(canvas);
+    canvas_set_font(canvas, FontPrimary);
+    canvas_draw_str_aligned(canvas, 64, 2, AlignCenter, AlignTop, "Radio Scanner");
+
+    canvas_set_font(canvas, FontSecondary);
+    char freq_str[RADIO_SCANNER_BUFFER_SZ + 1] = {0};
+    snprintf(
+        freq_str, RADIO_SCANNER_BUFFER_SZ, "Freq: %.2f MHz", (double)app->frequency / 1000000);
+    canvas_draw_str_aligned(canvas, 64, 18, AlignCenter, AlignTop, freq_str);
+
+    char rssi_str[RADIO_SCANNER_BUFFER_SZ + 1] = {0};
+    snprintf(rssi_str, RADIO_SCANNER_BUFFER_SZ, "RSSI: %.2f", (double)app->rssi);
+    canvas_draw_str_aligned(canvas, 64, 30, AlignCenter, AlignTop, rssi_str);
+
+    char sensitivity_str[RADIO_SCANNER_BUFFER_SZ + 1] = {0};
+    snprintf(sensitivity_str, RADIO_SCANNER_BUFFER_SZ, "Sens: %.2f", (double)app->sensitivity);
+    canvas_draw_str_aligned(canvas, 64, 42, AlignCenter, AlignTop, sensitivity_str);
+
+    canvas_draw_str_aligned(
+        canvas, 64, 54, AlignCenter, AlignTop, app->scanning ? "Scanning..." : "Locked");
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Exit radio_scanner_draw_callback");
+#endif
+}
+
+static void radio_scanner_input_callback(InputEvent* input_event, void* context) {
+    furi_assert(context);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Enter radio_scanner_input_callback");
+    FURI_LOG_D(TAG, "Input event: type=%d, key=%d", input_event->type, input_event->key);
+#endif
+    FuriMessageQueue* event_queue = context;
+    furi_message_queue_put(event_queue, input_event, FuriWaitForever);
+    FURI_LOG_D(TAG, "Exit radio_scanner_input_callback");
+}
+
+static void radio_scanner_rx_callback(const void* data, size_t size, void* context) {
+    UNUSED(data);
+    UNUSED(context);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "radio_scanner_rx_callback called with size: %zu", size);
+#else
+    UNUSED(size);
+#endif
+}
+
+static void radio_scanner_update_rssi(RadioScannerApp* app) {
+    furi_assert(app);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Enter radio_scanner_update_rssi");
+#endif
+    if(app->radio_device) {
+        app->rssi = subghz_devices_get_rssi(app->radio_device);
+#ifdef FURI_DEBUG
+        FURI_LOG_D(TAG, "Updated RSSI: %f", (double)app->rssi);
+#endif
+    } else {
+        FURI_LOG_E(TAG, "Radio device is NULL");
+        app->rssi = RADIO_SCANNER_DEFAULT_RSSI;
+    }
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Exit radio_scanner_update_rssi");
+#endif
+}
+
+static bool radio_scanner_init_subghz(RadioScannerApp* app) {
+    furi_assert(app);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Enter radio_scanner_init_subghz");
+#endif
+    subghz_devices_init();
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "SubGHz devices initialized");
+#endif
+
+    const SubGhzDevice* device = subghz_devices_get_by_name(SUBGHZ_DEVICE_NAME);
+    if(!device) {
+        FURI_LOG_E(TAG, "Failed to get SubGhzDevice");
+        return false;
+    }
+    FURI_LOG_I(TAG, "SubGhzDevice obtained: %s", subghz_devices_get_name(device));
+
+    app->radio_device = device;
+
+    subghz_devices_begin(device);
+    subghz_devices_reset(device);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "SubGhzDevice begun");
+#endif
+    if(!subghz_devices_is_frequency_valid(device, app->frequency)) {
+        FURI_LOG_E(TAG, "Invalid frequency: %lu", app->frequency);
+        return false;
+    }
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Frequency is valid: %lu", app->frequency);
+#endif
+    subghz_devices_load_preset(device, FuriHalSubGhzPreset2FSKDev238Async, NULL);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Preset loaded");
+#endif
+    subghz_devices_set_frequency(device, app->frequency);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Frequency set to %lu", app->frequency);
+#endif
+    subghz_devices_start_async_rx(device, radio_scanner_rx_callback, app);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Asynchronous RX started");
+#endif
+    if(furi_hal_speaker_acquire(30)) {
+        app->speaker_acquired = true;
+        subghz_devices_set_async_mirror_pin(device, &gpio_speaker);
+#ifdef FURI_DEBUG
+        FURI_LOG_D(TAG, "Speaker acquired and async mirror pin set");
+#endif
+    } else {
+        app->speaker_acquired = false;
+        FURI_LOG_E(TAG, "Failed to acquire speaker");
+    }
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Exit radio_scanner_init_subghz");
+#endif
+    return true;
+}
+
+static void radio_scanner_process_scanning(RadioScannerApp* app) {
+    furi_assert(app);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Enter radio_scanner_process_scanning");
+#endif
+    radio_scanner_update_rssi(app);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "RSSI after update: %f", (double)app->rssi);
+#endif
+    bool signal_detected = (app->rssi > app->sensitivity);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Signal detected: %d", signal_detected);
+#endif
+
+    if(signal_detected) {
+        if(app->scanning) {
+            app->scanning = false;
+#ifdef FURI_DEBUG
+            FURI_LOG_D(TAG, "Scanning stopped");
+#endif
+        }
+    } else {
+        if(!app->scanning) {
+            app->scanning = true;
+#ifdef FURI_DEBUG
+            FURI_LOG_D(TAG, "Scanning started");
+#endif
+        }
+    }
+
+    if(!app->scanning) {
+#ifdef FURI_DEBUG
+        FURI_LOG_D(TAG, "Exit radio_scanner_process_scanning");
+        return;
+#endif
+    }
+    uint32_t new_frequency = (app->scan_direction == ScanDirectionUp) ?
+                                 app->frequency + SUBGHZ_FREQUENCY_STEP :
+                                 app->frequency - SUBGHZ_FREQUENCY_STEP;
+
+    if(!subghz_devices_is_frequency_valid(app->radio_device, new_frequency)) {
+        if(app->scan_direction == ScanDirectionUp) {
+            if(new_frequency < 387000000) {
+                new_frequency = 387000000;
+            } else if(new_frequency < 779000000) {
+                new_frequency = 779000000;
+            } else if(new_frequency > SUBGHZ_FREQUENCY_MAX) {
+                new_frequency = SUBGHZ_FREQUENCY_MIN;
+            }
+        } else {
+            if(new_frequency > 464000000) {
+                new_frequency = 464000000;
+            } else if(new_frequency > 348000000) {
+                new_frequency = 348000000;
+            } else if(new_frequency < SUBGHZ_FREQUENCY_MIN) {
+                new_frequency = SUBGHZ_FREQUENCY_MAX;
+            }
+        }
+#ifdef FURI_DEBUG
+        FURI_LOG_D(TAG, "Adjusted frequency to next valid range: %lu", new_frequency);
+#endif
+    }
+
+    subghz_devices_flush_rx(app->radio_device);
+    subghz_devices_stop_async_rx(app->radio_device);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Asynchronous RX stopped");
+#endif
+
+    subghz_devices_idle(app->radio_device);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Device set to idle");
+#endif
+    app->frequency = new_frequency;
+    subghz_devices_set_frequency(app->radio_device, app->frequency);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Frequency set to %lu", app->frequency);
+#endif
+
+    subghz_devices_start_async_rx(app->radio_device, radio_scanner_rx_callback, app);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Asynchronous RX restarted");
+    FURI_LOG_D(TAG, "Exit radio_scanner_process_scanning");
+#endif
+}
+
+RadioScannerApp* radio_scanner_app_alloc() {
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Enter radio_scanner_app_alloc");
+#endif
+    RadioScannerApp* app = malloc(sizeof(RadioScannerApp));
+    if(!app) {
+        FURI_LOG_E(TAG, "Failed to allocate RadioScannerApp");
+        return NULL;
+    }
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "RadioScannerApp allocated");
+#endif
+
+    app->view_port = view_port_alloc();
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "ViewPort allocated");
+#endif
+
+    app->event_queue = furi_message_queue_alloc(8, sizeof(InputEvent));
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Event queue allocated");
+#endif
+
+    app->running = true;
+    app->frequency = RADIO_SCANNER_DEFAULT_FREQ;
+    app->rssi = RADIO_SCANNER_DEFAULT_RSSI;
+    app->sensitivity = RADIO_SCANNER_DEFAULT_SENSITIVITY;
+    app->scanning = true;
+    app->scan_direction = ScanDirectionUp;
+    app->speaker_acquired = false;
+    app->radio_device = NULL;
+
+    view_port_draw_callback_set(app->view_port, radio_scanner_draw_callback, app);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Draw callback set");
+#endif
+
+    view_port_input_callback_set(app->view_port, radio_scanner_input_callback, app->event_queue);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Input callback set");
+    FURI_LOG_D(TAG, "Exit radio_scanner_app_alloc");
+#endif
+
+    app->gui = furi_record_open(RECORD_GUI);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "GUI record opened");
+#endif
+
+    gui_add_view_port(app->gui, app->view_port, GuiLayerFullscreen);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "ViewPort added to GUI");
+#endif
+
+    return app;
+}
+
+void radio_scanner_app_free(RadioScannerApp* app) {
+    furi_assert(app);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Enter radio_scanner_app_free");
+#endif
+    if(app->speaker_acquired && furi_hal_speaker_is_mine()) {
+        subghz_devices_set_async_mirror_pin(app->radio_device, NULL);
+        furi_hal_speaker_release();
+        app->speaker_acquired = false;
+#ifdef FURI_DEBUG
+        FURI_LOG_D(TAG, "Speaker released");
+#endif
+    }
+
+    if(app->radio_device) {
+        subghz_devices_flush_rx(app->radio_device);
+        subghz_devices_stop_async_rx(app->radio_device);
+#ifdef FURI_DEBUG
+        FURI_LOG_D(TAG, "Asynchronous RX stopped");
+#endif
+        subghz_devices_idle(app->radio_device);
+        subghz_devices_sleep(app->radio_device);
+        subghz_devices_end(app->radio_device);
+#ifdef FURI_DEBUG
+        FURI_LOG_D(TAG, "SubGhzDevice stopped and ended");
+#endif
+    }
+
+    subghz_devices_deinit();
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "SubGHz devices de-initialized");
+#endif
+    gui_remove_view_port(app->gui, app->view_port);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "ViewPort removed from GUI");
+#endif
+    view_port_free(app->view_port);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "ViewPort freed");
+#endif
+
+    furi_message_queue_free(app->event_queue);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Event queue freed");
+#endif
+
+    furi_record_close(RECORD_GUI);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "GUI record closed");
+#endif
+
+    free(app);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "RadioScannerApp memory freed");
+#endif
+}
+
+int32_t radio_scanner_app(void* p) {
+    UNUSED(p);
+    FURI_LOG_I(TAG, "Enter radio_scanner_app");
+
+    RadioScannerApp* app = radio_scanner_app_alloc();
+    if(!app) {
+        FURI_LOG_E(TAG, "Failed to allocate app");
+        return 1;
+    }
+
+    if(!radio_scanner_init_subghz(app)) {
+        FURI_LOG_E(TAG, "Failed to initialize SubGHz");
+        radio_scanner_app_free(app);
+        return 255;
+    }
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "SubGHz initialized successfully");
+#endif
+
+    InputEvent event;
+    while(app->running) {
+#ifdef FURI_DEBUG
+        FURI_LOG_D(TAG, "Main loop iteration");
+#endif
+        if(app->scanning) {
+#ifdef FURI_DEBUG
+            FURI_LOG_D(TAG, "Scanning is active");
+#endif
+            radio_scanner_process_scanning(app);
+        } else {
+#ifdef FURI_DEBUG
+            FURI_LOG_D(TAG, "Scanning is inactive, updating RSSI");
+#endif
+            radio_scanner_update_rssi(app);
+        }
+
+#ifdef FURI_DEBUG
+        FURI_LOG_D(TAG, "Checking for input events");
+#endif
+        if(furi_message_queue_get(app->event_queue, &event, 10) == FuriStatusOk) {
+#ifdef FURI_DEBUG
+            FURI_LOG_D(TAG, "Input event received: type=%d, key=%d", event.type, event.key);
+#endif
+            if(event.type == InputTypeShort) {
+                if(event.key == InputKeyOk) {
+                    app->scanning = !app->scanning;
+                    FURI_LOG_I(TAG, "Toggled scanning: %d", app->scanning);
+                } else if(event.key == InputKeyUp) {
+                    app->sensitivity += 1.0f;
+                    FURI_LOG_I(TAG, "Increased sensitivity: %f", (double)app->sensitivity);
+                } else if(event.key == InputKeyDown) {
+                    app->sensitivity -= 1.0f;
+                    FURI_LOG_I(TAG, "Decreased sensitivity: %f", (double)app->sensitivity);
+                } else if(event.key == InputKeyLeft) {
+                    app->scan_direction = ScanDirectionDown;
+                    FURI_LOG_I(TAG, "Scan direction set to down");
+                } else if(event.key == InputKeyRight) {
+                    app->scan_direction = ScanDirectionUp;
+                    FURI_LOG_I(TAG, "Scan direction set to up");
+                } else if(event.key == InputKeyBack) {
+                    app->running = false;
+                    FURI_LOG_I(TAG, "Exiting app");
+                }
+            }
+        }
+
+        view_port_update(app->view_port);
+        furi_delay_ms(10);
+    }
+
+    radio_scanner_app_free(app);
+#ifdef FURI_DEBUG
+    FURI_LOG_D(TAG, "Exit radio_scanner_app");
+#endif
+    return 0;
+}

radio_scanner/radio_scanner_app.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <gui/gui.h>
+#include <gui/view_port.h>
+#include <subghz/devices/devices.h>
+
+typedef enum {
+    ScanDirectionUp,
+    ScanDirectionDown,
+} ScanDirection;
+
+typedef struct {
+    Gui* gui;
+    ViewPort* view_port;
+    FuriMessageQueue* event_queue;
+    bool running;
+    uint32_t frequency;
+    float rssi;
+    float sensitivity;
+    bool scanning;
+    ScanDirection scan_direction;
+    const SubGhzDevice* radio_device;
+    bool speaker_acquired;
+} RadioScannerApp;
+
+RadioScannerApp* radio_scanner_app_alloc(void);
+void radio_scanner_app_free(RadioScannerApp* app);
+int32_t radio_scanner_app(void* p);