Walkie Talkie
July 17, 2026 · View on GitHub
Audio limitation: The CC1101 data mirror is a digital receive-data stream, not demodulated analog voice. Treat this app as a channel activity/RSSI scanner unless external demodulation hardware is added; speaker output is not reliable FRS voice.
📻 Listen in on FRS walkie-talkie channels with your Flipper Zero. Tunes the built-in CC1101 radio to the 22 standard FRS channels and plays whatever it hears through the speaker, with auto-squelch and a channel scanner.
Receive-only. This app does not transmit, and it does not decode CTCSS/DCS — subchannel numbers are labels for matching your handheld radio's display, not a privacy-code filter.
It also cannot play FM broadcast radio; those frequencies are outside the CC1101's supported bands.
✨ Features
- All 22 standard FRS channels (462/467 MHz) with a scrollable channel list
- Channel scanner: scans up or down, pauses automatically when a signal is detected, and resumes after the transmission ends
- Auto-squelch with adjustable sensitivity (or turn it off to hear raw static)
- Live RSSI readout with a 5-bar signal-strength meter
- Subchannel (privacy-code) labels 1–38 for quick reference
📸 Screenshots
| Listen Now | Settings |
|---|---|
 |  |
| FRS Channel List | About |
|---|---|
 |  |
🎛️ Controls
Listen Now (main screen)
| Button | Short press | Long press |
|---|---|---|
| Up / Down | Channel up / down | Squelch sensitivity + / − |
| Left / Right | Subchannel − / + (0 = none) | Scan direction down / up |
| OK | Mute / unmute | Start, resume, or stop scanning |
| Back | Open menu | Exit app |
Menu / FRS List / Settings
| Button | Action |
|---|---|
| Up / Down | Move cursor |
| OK | Select (in FRS List: tune to the highlighted channel) |
| Left / Right | Settings: toggle Auto-Squelch or adjust sensitivity |
| Back | Back to previous screen (long press exits the app) |
🔧 Building from source
Requires ufbt (micro Flipper Build Tool):
pip install ufbt
cd Walkie_Talkie
ufbt # builds walkie_talkie.fap into dist/
ufbt launch # builds, installs to a connected Flipper, and runs it
📦 Installing a release
Copy walkie_talkie.fap to your Flipper's SD card under apps/Sub-GHz/, then launch it from Apps → Sub-GHz → Walkie Talkie.
⚖️ Legal note
Receiving FRS transmissions is legal in most jurisdictions, but laws vary — check your local regulations. This app never transmits.
🤔 To do
- Consider a custom radio preset to improve audio quality
👤 Author
Made by coolshrimp (Coolshrimp Modz)