FPV Goggles Fan Control Board PCB for FATSHARK HD3 HD0 FPV Goggle Cooling Upgrade 10x20mm 1g Multi-Function Button Module
Description
Upgrade your goggle cooling with a dedicated 3-speed fan control board at just 1 gram. The compact 10×20mm PCB fits neatly inside FATSHARK HD3, HD0, and compatible FPV goggle housings without interfering with existing electronics. Three selectable fan speeds let you balance airflow and noise: choose low for quiet bench sessions, medium for general flying, or high for humid race days when fog threatens your vision.
Operate the fan with a single multi-function button—short press to toggle on and off, double-click to cycle through speeds. The LED indicator confirms every action: solid on when active, and flashing 1, 2, or 3 times to display the current speed gear. No need to remove the goggles, no need to navigate OSD menus, no need to remember complex button sequences. One button. Three speeds. Instant tactile feedback.
Retain your last setting automatically with 3-second power-off memory. The control board remembers whether the fan was on or off, and which speed gear was selected, before you disconnected power. Next time you power up your goggles, the fan resumes exactly where you left it—no reconfiguration, no forgotten settings, no fogged lenses on launch because the fan defaulted to off.
Install in minutes with the standard 10×20mm PCB footprint and straightforward wiring. The board accepts power from your goggle's internal supply (typically 2S) and connects directly to your existing or aftermarket cooling fan. Overall dimensions of 23×13×9mm including the button keep the profile low enough to tuck into the faceplate or side bay without bulging against your cheek or temple.
Breathe new life into aging goggles or complete a custom build with a simple, reliable fan solution. Whether you are restoring a well-used FATSHARK HD3, upgrading an HD0 for all-weather reliability, or assembling a custom ground station headset, this control board gives you precise thermal management without the weight and complexity of external fan systems. Compatible with standard micro fans drawing current within the board's rated limits.
Specifications
| Parameter | Specification |
|---|---|
| Product Type | Fan Control Board with Speed Adjustment |
| PCB Size | 10 × 20 mm |
| Overall Dimensions | 23 × 13 × 9 mm |
| Weight | 1 g |
| Compatible Goggles | FATSHARK HD3, HD0, and similar FPV goggles |
| Speed Settings | 3 gears (Low / Medium / High) |
| Control Interface | Single multi-function button with LED indicator |
| Memory Function | 3-second power-off memory (retains on/off state and speed gear) |
| LED Feedback | Solid on (fan active), Flashes 1/2/3 times (speed gear 1/2/3) |
Operation Guide
| Action | Function | LED Feedback |
|---|---|---|
| Short press (from off) | Turn fan on | LED on |
| Short press (from on) | Turn fan off | LED off |
| Double-click | Cycle speed gear (1 → 2 → 3 → 1) | Flashes 1× (Gear 1), 2× (Gear 2), 3× (Gear 3) |
| Power cycle | Restore last state after 3 seconds | Returns to previous on/off and speed setting |
Package Included:
1 x Fan Control Board