Overview
The FrSky TW Mini receiver is a compact RC receiver for the TWIN series TW protocol, using simultaneous dual active 2.4GHz frequency bands (active-active) for resilient radio communications. It is designed for lightweight, space-limited builds such as racing drones and RC airplanes, while supporting telemetry via FBUS / S.Port and SBUS output.
Key Features
- Simultaneous working dual 2.4G TW mode (dual active 2.4GHz)
- Black Box function
- Long control range (range varies based on RF power settings)
- Over-The-Air (OTA) firmware update
- SBUS Out (supports 16CH / 24CH mode)
- Telemetry support: FBUS / S.Port / F.Port
- FBUS setup in ETHOS can combine control signal + telemetry over a single wire (bidirectional transmission)
Specifications
| Frequency | Dual 2.4GHz |
| Dimensions (L x W) | 20.5 x 12 mm |
| Weight | 2.2 g |
| Operating voltage | 3.5-10 V (ensure supplied voltage exceeds 2.8 V during use) |
| Operating current | ≤50 mA @ 5 V |
| Antenna connector | IPEX1 |
| Compatibility | TWIN series radio & RF module in TW mode |
Ports & Onboard Labels
- Pads/ports: FBUS/S.Port, SBUS OUT, GND, VIN
- LED indicators labeled: BLUE, RED, GREEN
- Onboard button labeled: Button
- Two 2.4G antenna connections; board labels include “LoRa” and “FSK” near the antenna areas
For wiring, protocol configuration (SBUS/FBUS/S.Port/F.Port), or OTA update questions, contact support@rcdrone.top or visit https://rcdrone.top/.
Details

Compact board layout highlights the 20.5 × 12 mm footprint along with clearly labeled VIN/GND, SBUS OUT, and FBUS/S.Port pads for clean wiring.
