ClayLoop

Clay pigeon / skeet shooting controller for Flipper Zero Sub-GHz signals

Queue up to 4 .sub files and transmit them in sequence with configurable delay, duration, interval, and repeat count. Features LED/beep countdown, vibration feedback, mid-countdown cancellation, and persistent per-group file path memory.

Install (Pre-built FAP)

1. Download clayloop.fap from this repository
2. Copy it to your Flipper Zero SD card at apps/Sub-GHz/clayloop.fap
3. The app will appear under Applications → Sub-GHz on your Flipper

Compatible with Flipper Zero official firmware API 87.1 / Target 7.

Features

• Multi-file queue - Select 1-4 .sub files, transmitted in order
• Configurable timing - Duration (0.5-30s), interval (0-60s), start delay (None, 1-10s)
• Repeat control - 1-16 fixed cycles or infinite loop
• LED countdown - Red (440Hz) / Yellow (660Hz) / Green (880Hz) flash sequence with vibration before each TX
• TX feedback - Purple LED during active transmission, 1000Hz start beep
• Mid-cancel - Press OK during any countdown gap to abort immediately
• Protocol support - Both RAW and keyed protocol .sub files (Princeton, MegaCode, etc.)
• Persistent settings - All parameters + per-group file paths saved to SD card
• Per-group path memory - File browser remembers paths independently for each file count group (1/2/3/4 files)
• Reset combo - Up+Left on delay screen resets all settings and saved paths to defaults
• 13-frame animation - Animated clay pigeon silhouette on right half of display

Screens

Screen	Controls
Delay	Left/Right = start delay, OK = proceed, Back = exit
Setup	Left/Right = repeats, Up/Down = file count, OK = proceed
Control	Left/Right = duration, Up/Down = interval, OK = start/stop

• Back (short) returns to previous screen
• Back (long) exits the application
• Up+Left on delay screen opens reset confirmation

Build from Source

Prerequisites

• ufbt (micro Flipper Build Tool)
• Flipper Zero with official firmware

Build

cd ClayLoop
ufbt

Output: dist/clayloop.fap

Install via qFlipper

1. Connect Flipper Zero via USB
2. Open qFlipper
3. Navigate to SD Card > apps/Sub-GHz/
4. Drag and drop dist/clayloop.fap

Screenshots

Delay Screen	Setup Screen	Control Screen

File Structure

ClayLoop/
├── clayloop.c          # Complete application source
├── clayloop.fap        # Pre-built FAP (ready to install)
├── application.fam     # Flipper app manifest
├── clayloop.png        # App icon (10x10)
├── images/             # Animation frames (13 PNGs)
│   └── frame_0.png ... frame_12.png
├── screenshots/        # qFlipper screenshots
│   ├── control_screen.png
│   ├── delay_screen.png
│   └── setup_screen.png
├── README.md
├── LICENSE
└── .gitignore

Technical Details

• Target: Flipper Zero official firmware, API 87.1, Target 7
• Architecture: Event-driven with FuriMessageQueue, ViewPort, FuriTimer
• Radio: CC1101 internal via subghz_devices API (async DMA TX)
• Storage: FlipperFormat at /ext/apps_data/clayloop/config.ff
• Display: 128x64 px - left half UI text, right half 64x64 animation

License

MIT - Copyright (c) 2026 Bobby Gibbs

Author

Bobby Gibbs (@bobbygi97169329)