Holybro Micro OSD V2
by Holybro

The Holybro Micro OSD V2 (SKU: 13013) is an ultra-compact, Arduino-based analog On-Screen Display (OSD) module engineered to overlay real-time MAVLink flight telemetry directly onto a live FPV video feed. Built around an ATmega328P 8-bit microcontroller with an Arduino bootloader and a MAX7456 / AT7456 monochrome OSD video generator chip, this module interfaces seamlessly with Pixhawk-series and MAVLink-compatible autopilots running ArduPilot or PX4 firmware.

Pre-flashed from the factory for plug-and-play operation, the Micro OSD V2 allows pilots to monitor critical flight metrics—including battery voltage, current draw, flight mode, GPS satellite count, artificial horizon, altitude, airspeed, and flight timer—without modifying flight controller hardware. Measuring just 17.5 x 35 mm and weighing 3.0 grams, the board features positive-locking JST-GH (1.25mm pitch) connectors for vibration-resistant telemetry, camera, and VTX routing, an onboard solder jumper for PAL/NTSC video selection, exposed HSYNC/LOS test pads, and a standard 6-pin FTDI/ISP header for custom layout configuration.

Key Features

• Plug-and-Play MAVLink Telemetry: Ships pre-programmed for immediate compatibility with Pixhawk-standard flight controllers to display real-time battery, GPS, attitude, and flight mode telemetry.

• ATmega328P & MAX7456 Architecture: Combines a proven 8-bit AVR processor with a dedicated monochrome character overlay IC for crisp, low-latency analog video text and graphics.

• Locking JST-GH 1.25mm Connectors: Equipped with 6-pin, 4-pin, and 3-pin JST-GH latching headers to prevent intermittent signal dropouts caused by airframe vibration.

• NTSC & PAL Video Compatibility: Supports both NTSC (default) and PAL analog video standards via a dedicated onboard solder jumper pad.

• Ultralight 3g Micro Footprint: Compact 17.5 x 35 mm PCB easily tucks into tight multirotor frames, fixed-wing fuselages, and micro autonomous builds.

• Customizable Screen Layout: Standard 6-pin ISP/FTDI header allows connection to an FTDI USB-to-serial adapter to customize OSD data elements and screen positioning.

• Diagnostic Test Points: Features exposed PCB test pads for Horizontal Sync (HSYNC) and Loss of Sync (LOS) to assist with bench troubleshooting and signal verification.

Technical Specifications

• Manufacturer SKU / Part Number: 13013

• Main Microcontroller (MCU): ATmega328P (8-Bit AVR with Arduino Bootloader)

• OSD Overlay Chipset: MAX7456 / AT7456 Monochrome On-Screen Display IC

• Telemetry Protocol: MAVLink (ArduPilot / PX4 compatible)

• Video Standards Supported: NTSC (Default) / PAL (via onboard solder jumper)

• OSD Logic Supply Voltage: 5V DC (supplied via Flight Controller TELEM port)

• Camera / VTX Power Rail: Direct BAT+ pass-through (passes input battery voltage directly to camera and VTX power pins; verify peripheral voltage ratings before connecting)

• Board Connectors:

  • 1x JST-GH 1.25mm 6-Pin Port (Flight Controller TELEM Interface)

  • 1x JST-GH 1.25mm 4-Pin Port (FPV Camera Video-In & Power)

  • 1x JST-GH 1.25mm 3-Pin Port (Video Transmitter Video-Out & Power)

  • 1x Standard 6-Pin 2.54mm ISP / FTDI Programming Header

• Diagnostic Test Points: Exposed HSYNC and LOS pads

• Dimensions: 17.5 mm x 35.0 mm

• Net Weight: 3.0 grams

What Is Included

• (1) Holybro Micro OSD V2 Board (SKU: 13013)

• (1) JST-GH 1.25mm 6-Pin Cable (Flight Controller TELEM Connection)

• (1) JST-GH 1.25mm 4-Pin Cable (FPV Camera Connection)

• (1) JST-GH 1.25mm 3-Pin Cable (Video Transmitter Connection)