### Example

Source: https://developer.flipper.net/flipperzero/doxygen/js_gpio.html

This example demonstrates how to get a GPIO pin, initialize it as an output, write a high signal, and then a low signal.

```javascript
let eventLoop = require("event_loop");
let gpio = require("gpio");
let led = gpio.get("pc3");
led.init({ direction: "out", outMode: "push_pull" });
led.write(true);
delay(1000);
led.write(false);
delay(1000);
```

--------------------------------

### Setup USB HID

Source: https://developer.flipper.net/flipperzero/doxygen/js_badusb.html

Examples of how to set up the USB HID with default and custom parameters.

```javascript
let badusb = require("badusb");
// Start USB HID with default parameters
badusb.setup();
// Start USB HID with custom vid:pid = AAAA:BBBB, manufacturer and product strings not defined
badusb.setup({ vid: 0xAAAA, pid: 0xBBBB }); 
// Start USB HID with custom vid:pid = AAAA:BBBB, manufacturer string = "Flipper Devices", product string = "Flipper Zero"
badusb.setup({ vid: 0xAAAA, pid: 0xBBBB, mfrName: "Flipper Devices", prodName: "Flipper Zero" });
```

--------------------------------

### Application assets example

Source: https://developer.flipper.net/flipperzero/doxygen/example__apps__assets_8c.html

Application assets example.

```c
#include <furi.h>
#include <storage/storage.h>
#include <toolbox/stream/stream.h>
#include <toolbox/stream/file_stream.h>

```

--------------------------------

### Example Application

Source: https://developer.flipper.net/flipperzero/doxygen/example__view__holder_8c.html

This is the main function for the example application demonstrating the ViewHolder library.

```C
#include <gui/gui.h>
#include <gui/view_holder.h>
#include <gui/modules/text_box.h>
#include <api_lock.h>


int32_t example_view_holder_app(void *arg)
```

--------------------------------

### Source code

Source: https://developer.flipper.net/flipperzero/doxygen/example_app_data.html

Source code for this example can be found here.

```c
#define APP_DATA_PATH(path)IDE_PATH(path)
```

--------------------------------

### Application data example.

Source: https://developer.flipper.net/flipperzero/doxygen/example__apps__data_8c.html

This snippet shows the basic includes and defines for the application data example.

```c
#include <furi.h>
#include <storage/storage.h>

```

--------------------------------

### Source code

Source: https://developer.flipper.net/flipperzero/doxygen/example_app_assets.html

Source code for this example can be found here.

```text
Source code for this example can be found here.
```

--------------------------------

### Build Partial Update Packages

Source: https://developer.flipper.net/flipperzero/doxygen/ota_updates.html

Example command to build a package for installing the BLE FULL stack using the update.py script.

```bash
scripts/update.py generate \
-t f7 -d r13.3_full -v "BLE FULL 13.3" \
--stage dist/f7/flipper-z-f7-updater-*.bin \
--radio lib/stm32wb_copro/firmware/stm32wb5x_BLE_Stack_full_fw.bin \
--radiotype ble_full
```

--------------------------------

### Plugin host application example

Source: https://developer.flipper.net/flipperzero/doxygen/example__plugins_8c.html

Loads a single plugin and calls its methods.

```c
#include "plugin_interface.h"
#include <furi.h>
#include <flipper_application/flipper_application.h>
#include <loader/firmware_api/firmware_api.h>
#include <storage/storage.h>

##  Macros  
---

#define | **TAG** "ExamplePlugins"
##  Functions  
---

int32_t | **example_plugins_app** (void *p)
```

--------------------------------

### Get Start Level

Source: https://developer.flipper.net/flipperzero/doxygen/digital__signal_8h.html

Get the current start level contained in the DigitalSignal instance.

```c
bool digital_signal_get_start_level(const DigitalSignal *signal);
```

--------------------------------

### Macros

Source: https://developer.flipper.net/flipperzero/doxygen/example__plugins__multi_8c.html

TAG macro definition for logging.

```c
#define TAG "ExamplePlugins"
```

--------------------------------

### Get Device Model

Source: https://developer.flipper.net/flipperzero/doxygen/js_flipper.html

Example of how to get the device model using the getModel() method.

```javascript
flipper.getModel(); // "Flipper Zero"
```

--------------------------------

### Includes

Source: https://developer.flipper.net/flipperzero/doxygen/example__view__dispatcher_8c.html

Required header files for the ViewDispatcher example.

```c
#include <gui/gui.h>
#include <gui/view_dispatcher.h>
#include <gui/modules/widget.h>
#include <gui/modules/submenu.h>
```

--------------------------------

### Get Battery Charge

Source: https://developer.flipper.net/flipperzero/doxygen/js_flipper.html

Example of how to get the battery charge percentage using the getBatteryCharge() method.

```javascript
flipper.getBatteryCharge(); // 100
```

--------------------------------

### Get Virtual Dolphin Name

Source: https://developer.flipper.net/flipperzero/doxygen/js_flipper.html

Example of how to get the name of the virtual dolphin using the getName() method.

```javascript
flipper.getName(); // "Fur1pp44"
```

--------------------------------

### Functions

Source: https://developer.flipper.net/flipperzero/doxygen/example__plugins__multi_8c.html

Main application function for the multi-plugin example.

```c
int32_t example_plugins_multi_app(void *p);
```

--------------------------------

### Array.splice() Example

Source: https://developer.flipper.net/flipperzero/doxygen/js_builtin.html

Removes elements from an array starting at a specified index and returns them in a new array.

```javascript
let arr = [1, 2, 3];
arr.splice(1); // [2, 3]
arr; // [1]
```

--------------------------------

### Example Usage

Source: https://developer.flipper.net/flipperzero/doxygen/js_gui__loading.html

Demonstrates how to import and use the loading view module.

```javascript
let eventLoop = require("event_loop");
let gui = require("gui");
let loadingView = require("gui/loading");
```

--------------------------------

### bit_buffer_get_byte_from_bit

Source: https://developer.flipper.net/flipperzero/doxygen/bit__buffer_8h_source.html

Get a byte value starting from the specified bit index in a BitBuffer instance.

```c
uint8_t bit_buffer_get_byte_from_bit(const BitBuffer *buf, size_t index_bits)
```

--------------------------------

### Serial Setup Example

Source: https://developer.flipper.net/flipperzero/doxygen/js_serial.html

Configures the LPUART port with a baudrate of 115200.

```javascript
serial.setup("lpuart", 115200);
```

--------------------------------

### end() and setup() Example

Source: https://developer.flipper.net/flipperzero/doxygen/js_serial.html

Deinitializes the serial port and configures it with a specified baudrate.

```javascript
serial.end();
// Configure LPUART port with baudrate = 115200
serial.setup("lpuart", 115200);
```

--------------------------------

### Example for building an app from Rust sources

Source: https://developer.flipper.net/flipperzero/doxygen/app_manifests.html

Demonstrates how to use `fap_extbuild` to compile Rust code for a FAP.

```python
sources=["target/thumbv7em-none-eabihf/release/libhello_rust.a"],
fap_extbuild=(
ExtFile(
path="${FAP_WORK_DIR}/target/thumbv7em-none-eabihf/release/libhello_rust.a",
command="cargo build --release --verbose --target thumbv7em-none-eabihf --target-dir ${FAP_WORK_DIR}/target --manifest-path ${FAP_SRC_DIR}/Cargo.toml",
),
)
```

--------------------------------

### Key File Example

Source: https://developer.flipper.net/flipperzero/doxygen/subghz_file_format.html

Example of a standard preset Key file in Flipper SubGhz format.

```text
Filetype: Flipper SubGhz Key File
Version: 1
Frequency: 433920000
Preset: FuriHalSubGhzPresetOok650Async
Protocol: Princeton
Bit: 24
Key: 00 00 00 00 00 95 D5 D4
TE: 400
```

--------------------------------

### Getting and Setting Start Level

Source: https://developer.flipper.net/flipperzero/doxygen/digital__signal_8h_source.html

Functions to retrieve and set the initial signal level of a DigitalSignal instance.

```c
bool digital_signal_get_start_level(const DigitalSignal* signal);
void digital_signal_set_start_level(DigitalSignal* signal, bool level);
```

--------------------------------

### Mifare Classic Key Dictionary Example

Source: https://developer.flipper.net/flipperzero/doxygen/nfc_file_format.html

Example of a Mifare Classic key dictionary file, listing common and mfoc-derived keys as hex strings. Lines starting with '#' are comments and blank lines are ignored.

```Mifare Classic Key Dictionary
# Key dictionary from https://github.com/ikarus23/MifareClassicTool.git

# More well known keys!
# Standard keys
FFFFFFFFFFFF
A0A1A2A3A4A5
D3F7D3F7D3F7
000000000000

# Keys from mfoc
B0B1B2B3B4B5
4D3A99C351DD
1A982C7E459A
AABBCCDDEEFF
714C5C886E97
587EE5F9350F
A0478CC39091
533CB6C723F6
8FD0A4F256E9
...
```

--------------------------------

### Mifare Ultralight C Key Dictionary Example

Source: https://developer.flipper.net/flipperzero/doxygen/nfc_file_format.html

Example of a Mifare Ultralight C key dictionary file, showing various sample keys as hex strings. Lines starting with '#' are comments and blank lines are ignored.

```Mifare Ultralight C Key Dictionary
# Hexadecimal-Reversed Sample Key
12E4143455F495649454D4B414542524
# Byte-Reversed Sample Key (!NACUOYFIEMKAERB)
214E4143554F594649454D4B41455242
# Sample Key (BREAKMEIFYOUCAN!)
425245414B4D454946594F5543414E21
# Semnox Key (IEMKAERB!NACUOY )
49454D4B41455242214E4143554F5900
# Modified Semnox Key (IEMKAERB!NACUOYF)
49454D4B41455242214E4143554F5946
...
```

--------------------------------

### Example using ViewDispatcher

Source: https://developer.flipper.net/flipperzero/doxygen/js_gui.html

An example demonstrating the use of the ViewDispatcher with multiple views.

```javascript
let eventLoop = require("event_loop");
let gui = require("gui");
let loadingView = require("gui/loading");
let submenuView = require("gui/submenu");
let emptyView = require("gui/empty_screen");
// Common pattern: declare all the views in an object. This is absolutely not
// required, but adds clarity to the script.
let views = {
// the view dispatcher auto-✨magically✨ remembers views as they are created
loading: loadingView.make(),
empty: emptyView.make(),
demos: submenuView.makeWith({
items: [
"Hourglass screen",
"Empty screen",
"Exit app",
],
}),
};
// go to different screens depending on what was selected
eventLoop.subscribe(views.demos.chosen, function (_sub, index, gui, eventLoop, views) {
if (index === 0) {
gui.viewDispatcher.switchTo(views.loading);
} else if (index === 1) {
gui.viewDispatcher.switchTo(views.empty);
} else if (index === 2) {
eventLoop.stop();
}
}, gui, eventLoop, views);
// go to the demo chooser screen when the back key is pressed
eventLoop.subscribe(gui.viewDispatcher.navigation, function (_sub, _, gui, views) {
gui.viewDispatcher.switchTo(views.demos);
}, gui, views);
// run UI
gui.viewDispatcher.switchTo(views.demos);
eventLoop.run();

```