WiFiLink Installation and Usage Guide

1 Component

Diagram showing the WiFi module with a fan, camera, main board, antenna connectors, connection pillars, and a slot. The components are labeled: WiFi Module, Antenna, Main Board, Camera, Connection Pillar, Slot.

2 Installation

Metal pillars must be used to connect the main board with the WiFi module to ensure effective heat transfer from the main board to the WiFi module.

Installation Method 1: Direct Stacking

Diagram illustrating direct stacking of the WiFi module onto the main board using connection pillars.

Installation Method 2: Offset Stacking

Diagram illustrating offset stacking, where the WiFi module is positioned slightly away from the main board using pillars.

3 Other Precautions

Antenna Layout

Antenna Installation:

Ensure the two tail antennas are sufficiently spread apart to avoid entanglement, which could reduce signal interference.

Antenna Direction:

Adjust the antennas to point upwards whenever possible to avoid obstruction by the drone or battery, ensuring the best signal transmission.

4PIN Power Cable Connection

The wiring sequence of the two ends of the 4PIN power cable is opposite. Confirm the direction before connecting to ensure correct insertion and avoid damaging the device. The diagram shows the POWER input on the main board and the corresponding cable. Text on the component reads: '供电前,请注意线序' (Please note the wire sequence before powering).

WiFiLink consumes about 14W and operates within a voltage range of 9-30V. Direct power from 3S and 4S batteries is acceptable, but avoid using 6S batteries directly due to high inrush voltage; instead, please use a BEC for buffering.

4 Specifications

5 How to Use WiFiLink

WiFiLink requires no configuration. Simply follow the steps below to use it:

Install the APP

Install the FPVue APP or PixelPilot on an Android phone.

• FPVue APP Download: https://github.com/gehee/FPVue_android/releases
• PixelPilot Download: https://github.com/OpenIPC/PixelPilot/releases

Copy and Replace the Key

Copy the 'gs.key' file generated by WiFiLink into the phone's storage. The image shows the WiFiLink app interface with parameters like Channel, Codec, OSD, and Recording, and the 'gs.key' file highlighted.

6 How to Flash WiFiLink

Card Flashing Steps:

Prepare Files

Copy the 'WiFiLink-part0.bin' and 'WiFiLink-part1.bin' card flashing files to the root directory of an empty SD card.

Upgrade Steps

Insert the SD card into the camera's main board and power it on. The camera will automatically enter upgrade mode (about 15 seconds). Once the upgrade is complete (about 1 minute), the green light will stay on and the SD card content will be cleared. After re-powering, a new configuration file ('gs.key' and 'user') will be generated on the SD card.

Card flashing file: https://www.runcam.com/download/runcamwifilink

7 How to Obtain WiFiLink Keys and Configuration Files

Insert the empty SD card into the camera and power it on. The camera will automatically generate the required configuration files upon startup.

8 How to Set WiFiLink Parameters

It is recommended to use Notepad++ to edit the user file, which only supports modifying the parameters listed under Available Values, including:

9 How to Use the Ethernet Port

Default Settings: IP Address: 192.168.1.10, Username: root, Password: 12345

10 How to Pair with Ground Station

WiFiLink is paired with the FPVue APP by default. If you need to pair it with another ground station, copy the WiFiLink's 'gs.key' key to the corresponding location on the ground station.

11 What Other Ground Stations Are Compatible

Computer and Radxa ZERO 3W Development Board.

12 How to Use with a PC Ground Station

Download: https://github.com/OpenIPC/fpv4win/releases

Follow the steps below:

Step 1

Insert the 8812AU wireless network adapter into the computer and reconfigure the driver using the Zadig program. The screenshot shows the Zadig program interface with options to 'List All Devices' and select a driver. It indicates that no new version of Zadig was found. The 'Remember this ID' section shows 'USB ID OBDA 8812'. The 'Device' dropdown shows '802.11n NIC' selected, with 'WinUSB (v6.1.7600.16385)' as the driver.

Step 2

Replace the WiFiLink key file (gs.key) in the computer's program folder. Double-click to open the 'fpv4win' program, select the correct network adapter, Channel, and Codec, then click START to begin use. The screenshots show the file explorer with 'gs.key' and the 'fpv4win' program interface with fields for Channel (set to 173), Codec (set to H265), Channel Width (set to 20), and a START button.

13 How to Use with Radxa ZERO 3W

Visit: https://support.runcam.com/hc/en-us

Contact RunCam technical support for detailed guidance.

14 Troubleshooting: What to Do If There Is No Video

Check Power Supply: Ensure the power supply is normal and verify that the Channel, Codec, and Key are correctly matched.

15 Troubleshooting: No FC OSD Information on Screen

Check Configuration

Ensure that the configuration settings are correct. The three parameters should be: 115 (corresponding to 115200), 0, 1, or 2 (corresponding to Mavlink1 or 2). The screenshot shows ArduPilot configuration settings.

Check Serial Port

Confirm that the flight controller serial port data is normal and available, and ensure that the serial port wiring is correct. Note that TX and RX must be cross-connected.

Auxiliary Tool Links

OTG Cable Reference to: https://item.jd.com/10087520840342.html#crumb-wrap

8812AU Wireless Network Adapter Reference to: https://item.taobao.com/item.htm?id=597898122636