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How to Use Herelink Air Unit 1.1: Examples, Pinouts, and Specs

Image of Herelink Air Unit 1.1
Cirkit Designer LogoDesign with Herelink Air Unit 1.1 in Cirkit Designer

Introduction

The Herelink Air Unit 1.1, manufactured by CubePilot (Part ID: Herelink Air Unit), is a high-performance transmission system designed specifically for drone applications. It enables real-time HD video streaming and telemetry data transmission between drones and ground control stations. With its low-latency performance and robust connectivity, the Herelink Air Unit 1.1 is an essential component for enhancing the operational capabilities of aerial systems.

Explore Projects Built with Herelink Air Unit 1.1

Use Cirkit Designer to design, explore, and prototype these projects online. Some projects support real-time simulation. Click "Open Project" to start designing instantly!
Raspberry Pi and H743-SLIM V3 Controlled Servo System with GPS and Telemetry
Image of Avionics Wiring Diagram: A project utilizing Herelink Air Unit 1.1 in a practical application
This circuit is designed for a UAV control system, featuring an H743-SLIM V3 flight controller connected to multiple servos for control surfaces, a GPS module for navigation, a telemetry radio for communication, and a digital airspeed sensor for flight data. The system is powered by a LiPo battery and includes a Raspberry Pi for additional processing and control tasks.
Cirkit Designer LogoOpen Project in Cirkit Designer
Arduino UNO-Based Air Quality Monitoring System with OLED Display and Multi-Color LED Indicators
Image of AQI: A project utilizing Herelink Air Unit 1.1 in a practical application
This circuit is an air quality monitoring system using an Arduino UNO, which integrates sensors for dust (GP2Y1010AU0F), gas (MQ135), and temperature/humidity (DHT22). The system displays real-time data on an OLED screen and uses LEDs and a buzzer to indicate air quality levels.
Cirkit Designer LogoOpen Project in Cirkit Designer
Satellite-Based Timing and Navigation System with SDR and Atomic Clock Synchronization
Image of GPS 시스템 측정 구성도_Confirm: A project utilizing Herelink Air Unit 1.1 in a practical application
This circuit appears to be a complex system involving power supply management, GPS and timing synchronization, and data communication. It includes a SI-TEX G1 Satellite Compass for GPS data, an XHTF1021 Atomic Rubidium Clock for precise timing, and Ettus USRP B200 units for software-defined radio communication. Power is supplied through various SMPS units and distributed via terminal blocks and DC jacks. Data communication is facilitated by Beelink MINI S12 N95 computers, RS232 splitters, and a 1000BASE-T Media Converter for network connectivity. RF Directional Couplers are used to interface antennas with the USRP units, and the entire system is likely contained within cases for protection and organization.
Cirkit Designer LogoOpen Project in Cirkit Designer
ESP8266-Based Air Quality Monitoring System with LCD Display and Wi-Fi Connectivity
Image of AQI: A project utilizing Herelink Air Unit 1.1 in a practical application
This circuit is an air quality monitoring system using an ESP8266 NodeMCU microcontroller. It integrates various sensors including a DHT11 for temperature and humidity, an MQ135 for air quality, and a BMP280 for pressure and altitude, displaying the data on a 16x2 I2C LCD and sending alerts via Blynk. A buzzer and LED are used to provide audible and visual alerts when air quality or temperature exceeds predefined thresholds.
Cirkit Designer LogoOpen Project in Cirkit Designer

Explore Projects Built with Herelink Air Unit 1.1

Use Cirkit Designer to design, explore, and prototype these projects online. Some projects support real-time simulation. Click "Open Project" to start designing instantly!
Image of Avionics Wiring Diagram: A project utilizing Herelink Air Unit 1.1 in a practical application
Raspberry Pi and H743-SLIM V3 Controlled Servo System with GPS and Telemetry
This circuit is designed for a UAV control system, featuring an H743-SLIM V3 flight controller connected to multiple servos for control surfaces, a GPS module for navigation, a telemetry radio for communication, and a digital airspeed sensor for flight data. The system is powered by a LiPo battery and includes a Raspberry Pi for additional processing and control tasks.
Cirkit Designer LogoOpen Project in Cirkit Designer
Image of AQI: A project utilizing Herelink Air Unit 1.1 in a practical application
Arduino UNO-Based Air Quality Monitoring System with OLED Display and Multi-Color LED Indicators
This circuit is an air quality monitoring system using an Arduino UNO, which integrates sensors for dust (GP2Y1010AU0F), gas (MQ135), and temperature/humidity (DHT22). The system displays real-time data on an OLED screen and uses LEDs and a buzzer to indicate air quality levels.
Cirkit Designer LogoOpen Project in Cirkit Designer
Image of GPS 시스템 측정 구성도_Confirm: A project utilizing Herelink Air Unit 1.1 in a practical application
Satellite-Based Timing and Navigation System with SDR and Atomic Clock Synchronization
This circuit appears to be a complex system involving power supply management, GPS and timing synchronization, and data communication. It includes a SI-TEX G1 Satellite Compass for GPS data, an XHTF1021 Atomic Rubidium Clock for precise timing, and Ettus USRP B200 units for software-defined radio communication. Power is supplied through various SMPS units and distributed via terminal blocks and DC jacks. Data communication is facilitated by Beelink MINI S12 N95 computers, RS232 splitters, and a 1000BASE-T Media Converter for network connectivity. RF Directional Couplers are used to interface antennas with the USRP units, and the entire system is likely contained within cases for protection and organization.
Cirkit Designer LogoOpen Project in Cirkit Designer
Image of AQI: A project utilizing Herelink Air Unit 1.1 in a practical application
ESP8266-Based Air Quality Monitoring System with LCD Display and Wi-Fi Connectivity
This circuit is an air quality monitoring system using an ESP8266 NodeMCU microcontroller. It integrates various sensors including a DHT11 for temperature and humidity, an MQ135 for air quality, and a BMP280 for pressure and altitude, displaying the data on a 16x2 I2C LCD and sending alerts via Blynk. A buzzer and LED are used to provide audible and visual alerts when air quality or temperature exceeds predefined thresholds.
Cirkit Designer LogoOpen Project in Cirkit Designer

Common Applications and Use Cases

  • Drone Operations: Provides real-time video and telemetry data for UAVs.
  • Aerial Photography and Videography: Enables high-definition video streaming for professional-grade imaging.
  • Search and Rescue Missions: Facilitates live video feeds for situational awareness.
  • Industrial Inspections: Supports remote monitoring of infrastructure and equipment.
  • Agricultural Drones: Assists in precision farming with live data and video.

Technical Specifications

Key Technical Details

Parameter Specification
Manufacturer CubePilot
Part ID Herelink Air Unit
Video Resolution Up to 1080p HD
Latency < 110 ms
Frequency Band 2.4 GHz ISM band
Transmission Range Up to 20 km (line of sight, depending on conditions)
Power Input 5V DC (via USB-C)
Operating Temperature -10°C to 60°C
Dimensions 90 mm x 60 mm x 20 mm
Weight 120 g

Pin Configuration and Descriptions

The Herelink Air Unit 1.1 features multiple ports for connectivity. Below is a description of the key ports and their functions:

Port Name Type Description
USB-C Power/Data Used for powering the unit and for firmware updates or configuration.
HDMI Input Video Input Accepts video input from cameras or other video sources.
UART Telemetry Connects to the flight controller for telemetry data transmission.
Antenna Ports RF Connectors Connects to external antennas for wireless communication.

Usage Instructions

How to Use the Herelink Air Unit 1.1 in a Circuit

  1. Powering the Unit:

    • Connect the Herelink Air Unit to a 5V DC power source using the USB-C port.
    • Ensure the power source provides sufficient current (minimum 2A recommended).

  2. Connecting to a Camera:

    • Use the HDMI input port to connect a compatible camera.
    • Ensure the camera supports 1080p resolution for optimal performance.

  3. Telemetry Connection:

    • Connect the UART port to the flight controller's telemetry port.
    • Configure the baud rate and communication settings on the flight controller to match the Herelink Air Unit.

  4. Antenna Installation:

    • Attach the provided antennas to the RF connectors.
    • Ensure the antennas are securely fastened and positioned for optimal signal strength.

  5. Pairing with Ground Control Station:

    • Power on the Herelink Air Unit and the ground control station.
    • Follow the pairing instructions provided in the CubePilot documentation to establish a connection.

Important Considerations and Best Practices

  • Line of Sight: For maximum transmission range, maintain a clear line of sight between the Herelink Air Unit and the ground control station.
  • Firmware Updates: Regularly update the firmware to ensure compatibility and access to the latest features.
  • Heat Management: Avoid operating the unit in direct sunlight or high-temperature environments to prevent overheating.
  • Cable Management: Use high-quality cables for HDMI and UART connections to ensure reliable performance.

Arduino UNO Compatibility

The Herelink Air Unit 1.1 is not directly compatible with Arduino UNO due to its advanced functionality and specific use case for drones. However, it can interface with flight controllers that may communicate with Arduino-based systems.

Troubleshooting and FAQs

Common Issues and Solutions

Issue Possible Cause Solution
No video feed on the ground control station Incorrect HDMI connection or camera settings Verify the HDMI cable and ensure the camera is outputting 1080p resolution.
Telemetry data not received UART connection issue or mismatched settings Check the UART wiring and ensure baud rate settings match on both devices.
Poor signal strength Antennas not properly installed or obstructed Ensure antennas are securely connected and positioned for optimal signal.
Unit overheating Operating in high-temperature environments Operate in a cooler environment or provide additional ventilation.

FAQs

  1. Can the Herelink Air Unit 1.1 be used with any drone?

    • Yes, it is compatible with most drones that support telemetry and HDMI video output.

  2. What is the maximum video resolution supported?

    • The unit supports up to 1080p HD video resolution.

  3. How do I update the firmware?

    • Connect the unit to a computer via USB-C and use the CubePilot firmware update tool.

  4. What is the typical latency for video transmission?

    • The latency is less than 110 ms under optimal conditions.

  5. Can I use the Herelink Air Unit indoors?

    • Yes, but the transmission range may be reduced due to interference and obstructions.

By following this documentation, users can effectively integrate and operate the Herelink Air Unit 1.1 in their drone systems.