TFCAB - ThunderFly Pixhawk Compatible Cabling System
TFCABxxyy01 cables are high-quality silicone cables designed for avionics applications in Pixhawk-based drone systems. These cables ensure reliable connectivity, enhanced mechanical resistance, and reduced electromagnetic interference (EMI). Each cable type follows a structured color-coding scheme to ensure easy identification and reduce connection errors.
Available Cable Variants
ThunderFly offers three main cable types:
- I²C Cables: Used for I²C bus communication.
- UAVCAN Cables: Designed for CAN bus communication.
- UART/TELEM/SERIAL Cables: Used for serial data transmission.
Each cable type is available in different lengths (15 cm, 30 cm, and 45 cm). All cables use JST-GH connectors for robust and secure connections. All cables could be purchased on correspondin links or via direct email inquiry at sale@thunderfly.cz.
I²C Cables
The TFCABxxI2C01 series is optimized for I²C communication, featuring a twisted design to minimize internal cross-talk and capacitance. This ensures reliable data transmission in avionics environments.

Where to Buy
TFCAB I2C cables can be purchased from:
Specifications
- Lengths: 15 cm, 30 cm, 45 cm
- Connector Type: JST-GH
- Number of Pins: 4
- Designed for: I²C bus
Pinout and Color Coding
| Pin Number | ThunderFly Color | Signal |
|---|---|---|
| 1 | Red | VCC (5.4V) |
| 2 | Yellow | SCL |
| 3 | Green | SDA |
| 4 | Black | GND |
Cable Twisting
- 10 turns per 30 cm for SCL/VCC and SDA/GND pairs.
- 4 turns per 30 cm for the combined cable.
UAVCAN Cables
The TFCABxxCAN01 series is designed for UAVCAN communication, optimized for EMI resistance through specific cable twisting.
Where to Buy
TFCAB CAN cables can be purchased from:
Specifications
- Lengths: 15 cm, 30 cm, 45 cm
- Connector Type: JST-GH
- Number of Pins: 4
- Designed for: CAN bus
Pinout and Color Coding
| Pin Number | ThunderFly Color | Signal |
|---|---|---|
| 1 | Red | VCC (5.4V) |
| 2 | White | CAN_H |
| 3 | Yellow | CAN_L |
| 4 | Black | GND |
Cable Twisting
- 10 turns per 30 cm for GND/VCC and CAN_L/CAN_H pairs.
- 4 turns per 30 cm for the combined cable.
UART/TELEM/SERIAL Cables
The TFCABxxUART01 series is used for serial communication, connecting autopilots and peripherals. UART cables do not support networking and must be connected directly.
Specifications
- Lengths: 15 cm, 30 cm, 45 cm
- Connector Type: JST-GH
- Number of Pins: 6
- Designed for: Serial (UART, TELEM, etc.)
Pinout and Color Coding
| Pin Number | ThunderFly Color | Signal |
|---|---|---|
| 1 | Red | VCC (5.4V) |
| 2 | White | TX |
| 3 | Green | RX |
| 4 | Blue | CTS |
| 5 | Yellow | RTS |
| 6 | Black | GND |
Important Notes
- UART cables should be kept as short as possible to minimize EMI interference.
- Twisting is not recommended for UART cables to prevent increased cross-talk.
- Straight-through wiring: Ensure that RX/TX and RTS/CTS are properly swapped in devices.
Red
Yellow
Green
Black
White
Blue
Black