Video Transmitter (VTX)

OrniFlight supports VTX control for FPV ornithopters. VTX modules can be configured via the OrniFlight Configurator, MSP, or CLI — setting band, channel, power level, and pit mode.

Supported Protocols

1. IRC Tramp — Common on small VTX modules, ideal for lightweight FPV ornithopters
2. TBS SmartAudio — Digital protocol with pit mode support
3. RTC6705 — Direct SPI control on boards with integrated VTX (e.g. SPRACINGF3NEO)

Configuration

VTX settings are managed through the VTX tab in OrniFlight Configurator, or via CLI:

set vtx_band = 5 # Raceband set vtx_channel = 1 # 5658 MHz set vtx_power = 2 # 200mW set vtx_low_power_disarm = ON # Lower power when disarmed set vtx_pit_mode_freq = 0 # Pit mode frequency (0 = disabled)

Serial Port

VTX control requires a dedicated UART TX pin. Configure the port in Ports tab with IRC Tramp or TBS SmartAudio peripheral.

FPV Ornithopter Considerations

• Weight is critical — choose lightweight VTX modules (Tramp Nano, Eachine Nano)
• Antenna mounting: ensure clearance from flapping wings
• Power filtering: connect VTX power after LC filter to avoid servo noise in video
• Pit mode is recommended for bench testing to avoid overheating small VTX modules