HDZero AIO5

The HDZero AIO5 brings clear HDZero digital video to the smallest 65mm whoops without adding weight. Flight controller, video transmitter, ELRS receiver and ESC sit on one durable board, so your build is simpler, tidier and ready to fly sooner. The picture stays on right to the end of the pack, so no flight ends in a sudden blackout in your goggles.

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HDZero AIO5 — Digital Video for 65mm Whoops

The HDZero AIO5 is, according to the manufacturer, the world's first digital video AIO, and lets you build a bind-and-fly 65mm whoop weighing under 19.5g. One board combines an STM32F411 flight controller with a BMI270 gyro, an HDZero 5.8GHz digital video transmitter (25mW/200mW), an SPI ExpressLRS 2.4GHz receiver (ELRS 3.0), a 5A BLHeli_S 4-in-1 ESC with DShot600 and a 5V/1A BEC, plus on-board voltage and current meters. It runs on a 1S pack from 2.5V to 4.35V, and the 2.5V minimum voltage means the video keeps transmitting until the motors stop. The camera connects with a single wire (HD composite instead of a MIPI cable), so the board works with the HDZero Lux and Eco cameras. It measures 28.5x28.5mm with 25.5x25.5mm mounting holes, fits popular whoop frames and weighs 5.7g, or 6.3g with motor plugs. The AIO5 was developed by Happymodel together with HDZero on a single thick PCB instead of a two-board stack, for better durability and a simpler build.

Key Features of the HDZero AIO5

HDZero Digital Video

A built-in HDZero 5.8GHz transmitter with 25mW and 200mW output, channels R1-R8, F2/F4 and L1-L8, and a UFL antenna connector.

ExpressLRS 2.4GHz On Board

An SPI ExpressLRS 3.0 receiver with packet rates from 25Hz to 500Hz and a pre-soldered wire antenna, no separate receiver needed.

F411 Flight Controller

STM32F411 (100MHz, 512K Flash) with a BMI270 gyro, running Betaflight on the CRAZYBEEF4SX1280 target.

5A 4-in-1 ESC

BLHeli_S with 5A continuous and 6A peak (3 seconds) per motor, DShot600 ready.

Video Down to 2.5V

The minimum voltage is 2.5V, so the video never stops transmitting before the motors stop.

One Thick PCB

A single thick board instead of a stack of two improves durability and keeps the build simple.

One-Wire Camera Input

HD composite video over a single wire instead of a MIPI cable, compatible with the HDZero Lux and Eco cameras.

5.7g Board

5.7g without motor plugs and 6.3g with them, for bind-and-fly 65mm whoops under 19.5g.

Applications of the HDZero AIO5

The manufacturer designed the AIO5 for the smallest digital builds:

Bind-and-fly 65mm whoops under 19.5g
Tiny whoop racing with HDZero digital video
Tiny whoop freestyle

Frequently Asked Questions About the HDZero AIO5

Which camera works with the HDZero AIO5?

The AIO5 takes the camera signal over a single wire (HD composite) instead of a MIPI cable, so it works with the HDZero Lux and Eco cameras. HDZero cameras that connect over a MIPI cable are not compatible with this board.

Can I power the HDZero AIO5 from a 2S pack?

No. The AIO5 is designed for a 1S pack only, from 2.5V to 4.35V, and the manufacturer marks the battery pads NO 2S.

Which Betaflight target does the HDZero AIO5 use?

CRAZYBEEF4SX1280. After flashing Betaflight, load the AIO5 CLI file from the HDZero download page (hd-zero.com/document) in the Betaflight CLI tab.

How do I bind the HDZero AIO5 to my radio?

Either connect the AIO5 to your PC over USB, open Betaflight and click Bind in the Receiver tab, or power the board on, wait until the ELRS LED turns off and cut the power, twice in a row. On the third power-up the LED double-flashes to show bind mode. Then start binding from the ELRS menu on your radio. A solid LED means the bind was successful. Use the ELRS preset that matches your link rate.

How do I update the video transmitter firmware on the HDZero AIO5?

With the HDZero VTX Programmer (sold separately). Plug it into the board's VTX FW connector, connect it to a Windows PC and run the HDZero Programmer app, which downloads and flashes the firmware for you.

Which frames fit the HDZero AIO5?

The board measures 28.5x28.5mm with a 25.5x25.5mm mounting pattern and, according to the manufacturer, is fully compatible with popular whoop frames. It is designed for 65mm whoops.

HDZero AIO5 Wiring Diagram

Top of the Board

Bottom of the Board

1S only (2.5-4.35V), do not connect 2S.

Mounting the Antennas on the HDZero AIO5

ELRS Antenna

The ELRS receiver uses a pre-soldered quarter-wave wire antenna that sits close to the board for a low profile and easy packaging. Before flying, lift it so it keeps at least 3mm of clearance from the board.

VTX Antenna

Mount the VTX antenna pointing outward from the board, not inward across it. The integrated HDZero transmitter needs this layout, because an antenna routed inward sends the video RF signal back to the onboard power amplifier, which causes noise in the video.

Specification of the HDZero AIO5

Flight Controller MCU	STM32F411 (100MHz, 512K Flash)
Gyro	BMI270
Betaflight Target	CRAZYBEEF4SX1280
Sensors	On-board voltage and current meters
ESC	4-in-1 BLHeli_S, 5A continuous, 6A peak (3 seconds) per motor
ESC MCU	EFM8BB21
ESC Factory Firmware	O_H_5_48_V0.19.2.HEX
ESC Protocol	DShot600
Video Transmitter	HDZero 5.8GHz, 25mW/200mW
VTX Channels	R1-R8, F2/F4, L1-L8
VTX Antenna	UFL connector, ultra-lite linear antenna included
Receiver	SPI ExpressLRS 2.4GHz (ELRS 3.0)
Packet Rate	25Hz/50Hz/150Hz/250Hz/500Hz
Receiver Antenna	Pre-soldered enamel wire antenna (1/4 wave)
Telemetry Output Power	<12dBm
BEC	5V/1A
Camera Input	HD composite, single wire (HDZero Lux, Eco)
Power Supply	1S (2.5-4.35V)
Board Size	28.5x28.5mm
Mounting Holes	25.5x25.5mm
Weight	5.7g (without motor plugs), 6.3g (with motor plugs)

Set HDZero AIO5 Includes

1x HDZero AIO5 Board
1x Power Cable with Inverted-Angle A30 Connector
4x Screws
4x Rubber Grommets
1x Ultra-Lite Linear VTX Antenna