CADDXFPV Walksnail Moonlight KIT HD VTX 4K Camera User Manual

1. Introduction

The CADDXFPV Walksnail Moonlight KIT is an advanced HD video transmission system designed for FPV (First Person View) model aircraft. It integrates a high-resolution 4K camera with a Video Transmitter (VTX) to deliver exceptional video quality and performance. This kit is equipped with a built-in gyroscope and supports Gyroflow technology, enabling pilots to capture smooth, stable, and immersive footage during flight. Its starlight sensor enhances low-light performance, making it suitable for various flying conditions.

2. Features

• 4K/60fps Recording: Supports high-resolution video capture at 4K and 60 frames per second, providing clear and detailed FPV footage.
• Starlight Camera: Features a starlight sensor for improved image quality and performance in low-light environments, enabling effective night vision shooting.
• Built-in EIS (Electronic Image Stabilization): Integrated electronic image stabilization ensures smooth and stable video quality.
• Gyroflow Support: Compatible with Gyroflow technology for advanced video stabilization, enhancing freestyle flying experience.
• Wide FOV: The camera offers a 160° Field of View, providing a natural and immersive perspective.
• Manual Camera Settings: Supports manual adjustment of shutter and ISO settings, allowing for optimal image capture in diverse lighting conditions.
• ND8 Filters Included: Comes with ND8 filters to adapt to different shooting scenes and achieve various visual effects.
• Dual Antennas: Equipped with two IPEX antennas for reliable signal transmission.
• Wide Power Input: Operates within a voltage range of 7.4V-25.2V.
• Micro SD Card Support: Records footage to a U3 MicroSD card, supporting up to 256GB.

Key features of the Moonlight Kit, highlighting 4K/60fps, Starlight sensor, EIS, and Gyroflow support.

Comparison of night vision performance between the Moonlight Camera and a standard camera.

Visual representation of smooth video capture during FPV flight, enabled by EIS and Gyroflow.

Example of the wide 160° Field of View provided by the Moonlight camera.

Comparison showing the effect of using an ND8 filter versus no filter on video quality.

3. Package Contents

The CADDXFPV Walksnail Moonlight KIT package typically includes the following components:

• Moonlight Camera
• Video Transmitter (VTX) module
• 2x IPEX Antennas (Avatar V2 antenna model, LHCP polarization)
• Connection Cables (Power in, USB)
• Mounting Screws
• Silicone Pads for camera mounting
• ND8 Filters

Overview of the components included in the Walksnail Moonlight Kit.

4. Setup and Connection

Follow these instructions for proper setup and connection of your Walksnail Moonlight KIT:

1. Mounting: Securely mount the camera and VTX module to your FPV model aircraft using the provided mounting screws and silicone pads. The VTX installation hole distance is 20x20mm or 25x25mm (M2).
2. Antenna Connection: Connect the two IPEX antennas to the VTX module. Ensure they are securely fastened.
3. Power Connection: Connect the power input cable (JST1.0*4) to a power source providing 7.4V-25.2V. Ensure correct polarity (VCC and GND).
4. UART Connection: Connect the UART RX and TX lines from the VTX to your flight controller for communication, if desired for OSD or other features.
5. USB Connection: The USB cable (JST0.8*6) is primarily for upgrading firmware. Connect it only when performing firmware updates. The white line on the USB cable aligns with the white circle connection point on the VTX.
6. Micro SD Card: Insert a U3 MicroSD card (up to 256GB) into the designated slot on the VTX for video recording.

Detailed connection diagram for VCC, GND, Uart RX, Uart TX, and USB cable. Note: USB cable is for upgrading only.

5. Operating Instructions

5.1 Powering On and Initial Use

1. Ensure all connections are secure and the Micro SD card is inserted.
2. Apply power within the specified range (7.4V-25.2V).
3. The system will power on and begin transmitting video. Pair with your compatible FPV goggles/receiver.

5.2 Camera Settings (OSD)

The Moonlight KIT supports OSD (On-Screen Display) in Canvas mode, allowing you to adjust camera parameters directly through your FPV goggles. Navigate the OSD menu to access settings such as:

• Scene: Day/Night modes.
• Sharpness: Adjust image sharpness.
• Ratio: Select video aspect ratio (e.g., 16:9).
• ISO: Manual ISO adjustment (100-25600) for light sensitivity.
• EV: Exposure Value compensation.
• WB (White Balance): Adjust color temperature.
• Saturation: Control color intensity.
• Shutter: Manual shutter speed control.
• DNR (Digital Noise Reduction): 2D and 3D DNR options to reduce image noise.

Example of the OSD menu for adjusting camera settings during flight.

5.3 Recording

Video recording is automatically managed by the VTX when a Micro SD card is inserted. Ensure your card is formatted correctly (FAT32 or exFAT recommended) for optimal performance. The recording resolution can be set to 4K@30/60fps, 2.7K@30/60fps, 1080p@100/60fps, or 720p@60fps.

5.4 Gyroflow Stabilization

The built-in gyroscope records motion data alongside your video. To utilize Gyroflow stabilization, transfer your recorded MP4 (H.264) video files to a computer and process them using the Gyroflow software. This will produce incredibly smooth and stable footage.

5.5 ND Filters

Attach the included ND8 filters to the camera lens in bright lighting conditions to reduce light intake, prevent overexposure, and achieve more cinematic motion blur.

6. Maintenance

• Keep the camera lens clean using a soft, lint-free cloth.
• Ensure the VTX module and camera are free from dust and debris.
• Regularly check all cable connections for wear or damage.
• Store the kit in a dry, cool place away from direct sunlight and extreme temperatures.
• Periodically check for firmware updates from CADDXFPV to ensure optimal performance and access to new features.

7. Troubleshooting

• No Video Signal: Check power connections, antenna connections, and ensure your FPV goggles/receiver are on the correct frequency and channel.
• Poor Video Quality/Interference: Verify antenna placement, check for obstructions, and ensure no other devices are causing interference on the same frequency.
• Recording Issues: Ensure the Micro SD card is properly inserted, formatted, and has sufficient free space. Check if the card is a U3 speed rating.
• System Not Responding: Disconnect and reconnect power. If issues persist, check for firmware updates.

8. Specifications

Dimensional specifications for the camera, VTX, and antenna components.

9. User Tips

• For best video quality, always use a high-speed (U3 rated) Micro SD card.
• Experiment with manual ISO and shutter settings to achieve desired exposure and motion blur effects in different lighting conditions.
• Utilize the included ND filters in bright daylight to prevent overexposure and enhance image clarity.
• Regularly back up your recorded footage from the Micro SD card to prevent data loss.

10. Warranty and Support

For warranty information and technical support, please refer to the official CADDXFPV website or contact your authorized dealer. Keep your purchase receipt as proof of purchase.