HappyModel Mobula7 1S 75mm Micro ELRS FPV Whoop Drone User Manual

1. Introduction

This manual provides essential information for the safe and effective operation of your HappyModel Mobula7 1S 75mm Micro ELRS FPV Whoop Drone. Please read this manual thoroughly before operating the drone to ensure proper setup, flight, and maintenance. Retain this manual for future reference.

2. Product Overview

The HappyModel Mobula7 is a high-performance 1S micro FPV whoop drone designed for agile indoor and outdoor flight. It integrates advanced components for an optimized flying experience.

• 5-in-1 AIO Flight Controller: Features an X12 5-IN-1 AIO flight controller with integrated ExpressLRS 2.0 receiver, OpenVTX (up to 400mW), 12A Brushless BLHeli_S ESC, and Betaflight OSD.
• High-Power VTX: The OpenVTX provides up to 400mW of video transmission power for clear FPV feeds.
• ExpressLRS 2.0: Integrated for low-latency, long-range control.
• Powerful Motors: Equipped with RS0802 20000KV brushless motors for smooth and responsive thrust.
• Ultra-Clear Camera: Features the Runcam Nano3 camera with an 800TVL 1/3 CMOS sensor for excellent video clarity.
• Lightweight Design: Weighing approximately 24g, the 75mm frame is agile and durable.

3. Setup

3.1 Battery Charging

The Mobula7 operates on 1S LiPo/LiHV batteries (450-650mAh recommended, not included). Use the provided USB 1-cell charger or a compatible LiPo/LiHV charger. Ensure correct polarity and never leave charging batteries unattended.

3.2 Propeller Installation

The drone comes with Gemfan 1610 Bi Blade propellers. Install them carefully, ensuring they are oriented correctly for thrust. Each motor has a specific rotation direction, and propellers must match this direction. Gently push them onto the motor shafts.

3.3 Radio Binding (ExpressLRS 2.0)

1. Power on your Mobula7 drone.
2. Power on your ExpressLRS 2.0 compatible radio transmitter.
3. Put your radio transmitter into binding mode according to its specific instructions.
4. The drone's receiver should automatically enter binding mode or can be manually put into binding mode via Betaflight CLI (type bind_rx and press enter).
5. Once bound, the receiver's LED will indicate a solid connection.

3.4 Betaflight Configuration

The X12 5-IN-1 AIO flight controller is pre-configured with Betaflight. For advanced settings, firmware updates, or custom tuning, connect the drone to a computer via a USB cable and use the Betaflight Configurator software. Ensure you have the correct DFU drivers installed.

4. Operating Instructions

4.1 Pre-Flight Checks

• Ensure battery is fully charged and securely connected.
• Verify propellers are free from damage and correctly installed.
• Check that your radio transmitter is powered on and bound to the drone.
• Confirm your FPV goggles or screen are receiving a clear video signal.
• Inspect the flight area for obstacles and ensure it is safe for flight.

4.2 Arming the Drone

To arm the motors, move the throttle stick to its lowest position and activate the designated arming switch on your radio transmitter. The motors will spin slowly, indicating they are armed and ready for flight. Disarm the drone immediately if any issues arise.

4.3 Basic Flight Controls

• Throttle: Controls altitude (left stick up/down).
• Yaw: Rotates the drone horizontally (left stick left/right).
• Pitch: Tilts the drone forward/backward (right stick up/down).
• Roll: Tilts the drone left/right (right stick left/right).

4.4 Landing Procedures

Reduce throttle gradually to descend. Aim for a clear, flat landing area. Once on the ground, immediately disarm the drone using the arming switch to stop the motors.

4.5 VTX Channel and Power Adjustment

The OpenVTX allows for adjustable video transmission power and channel selection. These settings can typically be changed via Betaflight OSD (On-Screen Display) using your radio sticks or through the Betaflight Configurator software. Refer to the Betaflight documentation for detailed instructions on VTX control.

5. Maintenance

5.1 Propeller Inspection and Replacement

Regularly inspect propellers for cracks, bends, or nicks. Damaged propellers can cause vibrations and reduce flight performance. Replace any damaged propellers immediately with genuine Gemfan 1610 Bi Blade replacements.

5.2 Motor Cleaning

Keep motors free from dirt, dust, and debris. Use a soft brush or compressed air to gently clean the motors. Avoid applying excessive force or liquids directly to the motors.

5.3 Battery Care and Storage

• Do not overcharge or over-discharge LiPo/LiHV batteries.
• Store batteries at a 'storage charge' voltage (typically 3.8V per cell) when not in use for extended periods.
• Store batteries in a fire-safe bag or container in a cool, dry place.
• Discontinue use of any swollen or damaged batteries.

5.4 Frame Inspection

Periodically check the drone frame for any cracks or damage, especially after crashes. A damaged frame can affect flight stability and component integrity. Replace damaged frame parts as needed.

6. Troubleshooting

6.1 Drone Not Arming

• Ensure your radio transmitter is powered on and bound.
• Verify the throttle stick is at its lowest position.
• Check Betaflight Configurator for any pre-arm safety checks preventing arming (e.g., low battery, accelerometer calibration needed).
• Confirm the arming switch is correctly configured in Betaflight.

6.2 Loss of Video Signal

• Check VTX power and channel settings on the drone and ensure they match your FPV goggles/receiver.
• Inspect the VTX antenna for damage or loose connections.
• Ensure there are no major obstructions between the drone and your receiver.

6.3 Motor Issues (e.g., one motor spinning slower)

• Inspect the propeller on the affected motor for damage or debris.
• Check for any physical obstruction preventing the motor from spinning freely.
• In Betaflight, check motor output in the Motors tab to identify if it's a software or hardware issue.
• If a motor is consistently underperforming or faulty, it may require replacement.

6.4 Binding Issues

• Ensure both the drone and radio transmitter are using the same ExpressLRS firmware version.
• Verify the binding phrase (if used) is identical on both devices.
• Try rebinding the drone and radio transmitter following the steps in Section 3.3.

7. Specifications

8. Warranty and Support

For warranty information and technical support, please contact HappyModel directly through their official website or authorized distributors. Keep your proof of purchase for any warranty claims. While protection plans may be offered by retailers, these are separate from the manufacturer's warranty.