ShutterBridge

by YarosFPV

Your camera, on the OSD. Your switches, on the shutter.

ESP32-S3 / ESP32-C3 firmware that links a Betaflight flight controller to a DJI Osmo, DJI Action or GoPro camera - live camera status drawn straight on your FPV goggles, and RC switches mapped to record, photo and mode switching

Flash the firmware Read the docs Source code

Compatible cameras

Three BLE backends, one bridge. At a glance:

DUML Tested

DJI Osmo (Nano)

Connect, OSD telemetry, mode readout, record and photo. Can't switch photo/video over BLE - the shutter takes a photo only when the camera is already in Photo mode.

DJI R-SDK Tested

DJI Action (3+) / Osmo 360

Full control: mode switch, resolution/FPS readout, record and photo. R-SDK protocol with DUML for battery. Pairing via PIN. Tested on the Action 4.

Open GoPro Tested

GoPro (HERO9+)

Preset switching, load-by-ID and clock sync from FC GPS time. Bonds on the camera. Recording and OSD telemetry verified on a HERO 12; some features not yet confirmed.

Connect + auto-reconnect

Osmo (Nano)
Action / 360
GoPro

OSD telemetry (record, battery, SD, timers)

Osmo (Nano)
Action / 360
GoPro

Mode readout (video / photo)

Osmo (Nano)
Action / 360
GoPro

Photo / video mode switch

Osmo (Nano)
Action / 360
GoPro

Resolution / FPS readout

Osmo (Nano)
Action / 360
GoPro

Start / stop recording

Osmo (Nano)
Action / 360
GoPro

Take photo

Osmo (Nano)
Action / 360
GoPro

Preset switching

Osmo (Nano)
Action / 360
GoPro

Clock sync from FC GPS time

Osmo (Nano)
Action / 360
GoPro
Supported Partial / conditional Unsupported Supported, untested

What you need

Three things to get flying

One of two boards

Waveshare ESP32-S3-Zero (4 MB flash, 2 MB PSRAM, native USB) or ESP32-C3 Super Mini (4 MB flash, USB-Serial/JTAG).

Betaflight 2025.12 or newer

Flight controller running Betaflight 25.12+. Talks to the bridge over MSP; OSD elements draw the camera status.

A supported action camera

A DJI Osmo / Action or a GoPro HERO9 or newer. See the compatibility list above.