Allstar Firefly 318ALD31K

Decoder and encoder for the Allstar Firefly 318ALD31K gate remote, based on the Supertex ED-9 trinary encoder IC. Includes both a standalone FAP for protocol development/testing and a native SubGHz protocol integration.

Protocol Details

Parameter	Value
Frequency	318 MHz
Modulation	OOK (On-Off Keying)
Preset	FuriHalSubGhzPresetOok650Async
Encoder IC	Supertex ED-9
Code type	Static 9-bit trinary (DIP switch)
Symbols per frame	18 (2 per bit)
Sync pulse	None
Frame repeats	20 per keypress
Inter-frame gap	~30,440 us

Symbol Encoding

Each DIP switch position is encoded as two consecutive pulse+gap pairs:

DIP State	Symbol	Pattern
ON (+)	H H	4045us HIGH, 607us LOW x2
OFF (-)	L L	530us HIGH, 4139us LOW x2
FLOAT (0)	H L	4045us HIGH, 607us LOW, 530us HIGH, 4139us LOW

Timing derived from analysis of 37 clean frames across two independent captures.

Save File Format

Filetype: Flipper SubGhz Key File
Version: 1
Frequency: 318000000
Preset: FuriHalSubGhzPresetOok650Async
Protocol: Allstar Firefly
Key: +--000++-

The Key field is exactly 9 characters using +, -, or 0 per DIP switch position (left to right, switch 1-9).

Repository Structure

flipper-allstar-firefly/
├── native_protocol/
│   ├── allstar_firefly.h      # Protocol header + extern declarations
│   ├── allstar_firefly.c      # Full decoder + encoder implementation
│   └── INTEGRATION.txt        # Step-by-step registration instructions
└── fap/
    ├── allstar_firefly.h      # FAP header
    ├── allstar_firefly.c      # FAP implementation (standalone app)
    └── application.fam        # FAP manifest

Native Protocol Installation

1. Copy native_protocol/allstar_firefly.h and allstar_firefly.c into lib/subghz/protocols/ in your firmware tree.

2. In lib/subghz/protocols/protocol_list.h add:

#include "allstar_firefly.h"

3. In lib/subghz/protocols/protocol_list.c add to the protocol array:

&subghz_protocol_allstar_firefly,

4. Rebuild and flash. The protocol appears in the SubGHz app alongside CAME, Princeton, etc.

See native_protocol/INTEGRATION.txt for full details.

FAP Installation

Copy the fap/ folder into applications_user/ in your firmware tree and build with:

fbt fap_allstar_firefly

The FAP provides LISTEN mode with live decode and RSSI bar, EDIT mode with cursor-based DIP switch editor, and TRANSMIT mode sending 20 frame repetitions.

Validated Against

• Allstar Firefly 318ALD31K remote (Supertex ED-9 encoder IC confirmed)
• Timing verified from 37 clean frames across two independent raw captures
• TX verified by Flipper-to-Flipper loopback decode
• Native protocol tested: live decode, save/load .sub files, retransmit

Compatible Firmware

• Unleashed (unlshd-086+)
• Stock OFW (same protocol registration API)

License

MIT — see LICENSE