Holy Stone HS900 Drone User Manual

Table of Contents

1. Product Description

• 1.1 Package Contents
• 1.2 Drone Diagram
• 1.3 Transmitter Diagram

2. Instructions for Use

• 2.1 Checking Battery Level
• 2.2 Charging
• 2.3 Preparations Before Flight
• 2.4 Flight
• 2.5 Flight Functions
• 2.6 Additional Instructions

3. Appendix

• 3.1 Specifications
• 3.2 Contact Us
• 3.3 Troubleshooting
• 3.4 Regulatory Compliance Information

1. Product Description

1.1 Package Contents

The package includes:

• 1 Drone
• 2 Transmitter
• 3 Drone Battery
• 4 Propellers
• 5 USB Charging Cable
• 6 Connection Cable
• 7 Screwdriver
• 8 User Manual

1.2 Drone Diagram

The drone features:

• 1 Gimbal Cover (remove before flight)
• 2 Gimbal Camera
• 3 Brushless Motor
• 4 Propeller (x2)
• 5 Propeller (x2)
• 6 Front Arm
• 7 Rear Arm
• 8 Downward Vision System
• 9 TOF Distance Sensor
• 10 Drone Status Light
• 11 Battery
• 12 Battery Light
• 13 Power Button
• 14 Battery Snap
• 15 Type-C Charging Port
• 16 TF Card Slot

Powering On/Off: Press the power button once, then hold it down until all four battery lights turn on/off.

The drone's status indicator shows the status of the flight control system.

1.3 Transmitter Diagram

Front View:

• 1 Antennas
• 2 System Status Light
• 3 Return-to-Home (RTH) Button
• 4 Left Joystick
• 5 Power Button
• 6 Foldable Handle
• 7 Joystick Slots
• 8 Transmitter Battery Light
• 9 Right Joystick
• 10 Type-C Port
• 11 Speed Switch
• 12 Secondary Joystick
• 13 Photo Button
• 14 Gimbal Adjustment Dial (Gimbal Pitch Adjustment)
• 15 Video Button
• 16 User-Defined Function Button
• 17 Charging Port

Top View:

Powering On/Off: Press the power button once, then hold it down.

Joystick Modes

To change joystick modes, ensure the transmitter is paired with your mobile device. In the app, tap 'Settings' → 'Control' → 'Joystick Mode' to access other modes.

• MODE 2 (Default): Left joystick controls throttle/altitude, right joystick controls yaw/rotation.
• MODE 1: Left joystick controls yaw/rotation, right joystick controls throttle/altitude.

Secondary Joystick Functions

The secondary joystick can be used to adjust:

• CV+ (Increase Travel Speed): Move the secondary joystick up.
• CV- (Decrease Travel Speed): Move the secondary joystick down.
• EV+ (Increase Exposure Value): Move the secondary joystick right to brighten the image.
• EV- (Decrease Exposure Value): Move the secondary joystick left to darken the image.

EV: Exposure Value (brightness of the image). CV: Travel Speed.

2. Instructions for Use

2.1 Checking Battery Level

Transmitter: Press the power button once. The battery lights indicate the battery level.

Drone: Press the drone battery's power button once. The lights indicate the battery level.

2.2 Charging

Charging the Drone Battery

Important: Read the 'Battery Usage' instructions in the 'Safety Guidelines' before charging.

• Do not charge the drone battery immediately after a flight, as it may be too hot. Wait for it to cool to room temperature.
• Use only the original charging cable.

To charge the drone battery, it must be installed in the drone. The drone has a standard Type-C port. Use a USB charger that supports QC3.0 protocol. Charging is not possible when the drone is powered on, and the drone cannot be powered on while charging. Battery lights blink green during charging and turn off when fully charged. Fastest charging time: 80 minutes.

Charging the Transmitter

Important: Read the 'Battery Usage' instructions in the 'Safety Guidelines' before charging.

• Use only the original charging cable.

The transmitter has a standard Type-C port. Use a USB charger that supports QC3.0 protocol. Battery lights blink green during charging and turn off when fully charged. Fastest charging time: 220 minutes.

2.3 Preparations Before Flight

Preparing the Drone

1. Install the battery and TF card (capacity ≤ 128GB).
2. Remove the gimbal cover.
3. Unfold the front arms and propellers.
4. Unfold the rear arms and propellers.

Preparing the Transmitter

1. Unfold the antennas and handles.
2. Remove the joysticks from their storage slots and mount them on the transmitter.
3. Extend the mobile device holder and insert your mobile device with the charging port facing right. Select the appropriate adapter cable (Lightning or Type-C) for your mobile device and transmitter. Connect one end to your mobile device and the other to the Type-C port on the right side of the transmitter.

Antenna Angle

For optimal signal strength, orient the transmitter antennas so they always point towards the drone.

2.4 Flight

Powering On and Pairing

1. Press the power button once, then hold it to turn on the transmitter.
2. Press the drone's power button once, then hold it for two seconds until all four battery lights illuminate.
3. Position the drone horizontally and wait for the status light to change from rapidly flashing yellow to slowly flashing green, and the system status light on the transmitter to change from red to green, indicating successful pairing.

Reconnecting the Drone and Transmitter

The drone and transmitter are bound before leaving the factory. Normally, re-binding is not necessary. They connect automatically after powering on. If you have replaced your drone or transmitter, or if automatic pairing fails, you need to re-bind them in the app.

Procedure:

1. Turn on the transmitter and drone.
2. Connect your mobile device to the transmitter, launch the HS Sirius app, tap 'Profile' on the main interface, then 'Settings', and finally 'Connect to New Drone'.
3. Press and hold the drone's battery button until all battery lights start blinking.
4. Tap 'Ready to Connect'. The transmitter will automatically connect to the drone. The app interface will indicate successful binding.

Entering the Flight Interface

When launching the app for the first time, you need to register and log in to your account, then activate the drone. Once the mobile device is connected to the transmitter, it must be trusted by the transmitter, and the HS Sirius app will launch automatically. If not, open the app manually. After accessing the app, register and log in, tap 'Go Fly', activate the drone, and access the flight interface.

GPS Satellite Positioning Signals

Check the number of GPS signals. If the GPS count is red and less than 14, the GPS navigation status is unhealthy, and the drone can only fly in altitude hold mode. GPS-related functions will not be available. If the GPS count is white and greater than 14, the GPS navigation status is normal, and the drone can take off. A higher GPS number indicates more accurate positioning.

Compass Calibration

Accessing Compass Calibration: From the app's flight screen, tap 'Settings' → 'Safety' → 'Calibration' → 'Compass Calibration'. Start calibration, and the drone's status light will turn blue.

How to Calibrate the Compass:

1. Position the drone vertically (head up) and rotate it 720° around the vertical axis. The drone's status light will flash red and blue.
2. Hold the drone horizontally and rotate it 720° around the horizontal axis. The status light will then turn green. Finally, place the drone on a flat surface to rest.

Important: If the HS Sirius app indicates that the drone's magnetic compass is significantly disturbed, or if the drone circles during hover or deviates from its intended straight path, land immediately and calibrate the compass. Ensure the motors are locked beforehand. For stable flight, it is recommended to calibrate the compass before each flight. Do not calibrate the compass in areas with magnetic interference, such as near magnetite deposits or large metal structures (parking garages, basements, bridges, cars, scaffolding). Do not carry items containing ferromagnetic materials near the drone during calibration. Perform calibration in an open outdoor area, away from strong electromagnetic interference. It is recommended that the drone be 0.9144 meters above the ground during compass calibration. If calibration is unsuccessful, repeat the steps.

Motor Unlocking

After the transmitter is successfully connected to the drone, simultaneously push both joysticks to the lower outer corners and hold them until the motors spin. Release the joysticks when the motors start spinning.

Locking: Move the throttle joystick down and hold for 2 seconds. The motors will stop.

Takeoff

Ensure the transmitter, drone battery, and mobile device are fully charged. Verify the drone has acquired a satellite positioning signal (indicated by a white GPS status icon in the app, with more than 14 satellites).

Manual Takeoff:

Perform the motor unlocking maneuver, then slowly push the throttle joystick up to take off.

Automatic Takeoff:

When the takeoff condition is met ('Be Ready' displayed in the app's top-left info bar), tap the takeoff icon in the app's flight interface and hold the icon. The drone will automatically take off and ascend to a height of 2 meters to hover.

Landing

Manual Landing:

Slowly pull the throttle joystick down until the drone lands. After touching the ground, pull the throttle joystick to the lowest position and hold for 2 seconds to stop the motors.

Automatic Landing:

Tap the '⬇️' icon in the flight interface and hold the '⬇️' icon. The drone will land automatically.

2.5 Flight Functions

Speed Switch

The drone has three speed modes: Stable, Normal, and Sport. Switch between modes by pressing the speed switch button on the transmitter or by navigating in the app: 'Settings' → 'Safety' → 'Speed Mode'.

• Stable Mode: Max horizontal speed 5m/s, max ascent 2m/s, max descent 1.5m/s. Recommended for photography.
• Normal Mode: Max horizontal speed 10m/s, max ascent 3m/s, max descent 2.5m/s.
• Sport Mode: Max horizontal speed 14m/s, max ascent 4m/s, max descent 3.5m/s. Requires a braking distance of at least 30 meters.

The drone defaults to Stable Mode upon startup.

Return-to-Home (RTH)

When the drone enters RTH mode, it automatically returns to the Home Point and lands.

RTH can be triggered in three ways:

1. User Trigger: Tap the 'RTH' icon in the app or press and hold the RTH button on the transmitter until it beeps.
2. Low Drone Battery: The drone automatically calculates if it has enough power to return home based on current flight distance and altitude. If not, it will land automatically. This automatic landing cannot be canceled, but the transmitter can control the drone's movement during landing. It is advisable to move the drone horizontally to find a suitable landing spot quickly. If the user holds the throttle joystick up until the battery is depleted, the drone will crash.
3. Transmitter Signal Loss: If the transmitter signal is lost, the drone will perform an action based on app settings ('Settings' → 'Safety' → 'Signal Lost'): return to Home Point, land directly, or hover in place. If RTH is set and a Home Point was previously recorded with a normal compass, RTH will activate automatically after signal loss.

RTH Settings:

• Return altitude is adjustable from 30m to 120m. Adjust according to the flight environment to avoid obstacles.
• Press the RTH button once during RTH mode to cancel it.
• RTH cannot be activated if the GPS signal is abnormal or not functioning. Land manually.
• If wind speed is too high, the drone may not be able to return home. Fly with caution.
• During RTH, pay close attention to small or thin objects (branches, wires) or transparent objects (water, glass). Cancel RTH and control the drone manually in an emergency.

RTH Scenarios:

• Horizontal distance to Home Point > 20 meters: If drone altitude is higher than set RTH altitude, it maintains current altitude, flies horizontally to the Home Point, and lands vertically. If drone altitude is lower than set RTH altitude, it ascends vertically to the set RTH altitude, flies horizontally to the Home Point, and lands vertically.
• Horizontal distance to Home Point ≤ 20 meters: The drone maintains current altitude, flies horizontally to the Home Point, and lands vertically.

Gimbal Control

The 3-axis gimbal provides a stable platform for the camera, ensuring stable image capture even at high speeds. You can control the gimbal's tilt angle (PIT) using the transmitter's gimbal adjustment dial.

Gimbal Adjustment Dial: Controls tilt angle by turning left or right.

Important Notes:

• In Sport mode, the tilt angle range is +30° to -70°.
• When the drone flies forward, it is recommended to set the gimbal angle below 0° to avoid screen obstruction.

Camera Settings

Method 1:

Quickly adjust the camera's EV using the secondary joystick. Move the secondary joystick left to decrease EV (darken image) or right to increase EV (brighten image).

Method 2:

For more detailed settings, use the 'Camera Settings' in the app.

FN Button

You can use the app under 'Settings' → 'Control' → 'Button Customization' to customize functions, including gimbal re-centering and cruise control.

• Gimbal Re-center: Press the FN button once to automatically set the gimbal angle to -90°. Press again to set it to 0°.
• Speed Control (Cruise Control): The drone flies in a straight line at a constant speed. Press the throttle joystick to exit the mode.

Taking Photos and Videos

A TF card must be inserted into the drone to take photos or videos.

App Operation:

1. Tap the '?' icon to switch between photo and video modes.
2. Take Photo: Tap the '?' icon to take a photo.
3. Record Video: Tap the '▶️' icon to start recording. Tap it again to stop and save the video.

Transmitter Operation:

1. Take Photo: Press the photo button on the transmitter once.
2. Record Video: Press the record button on the transmitter. Press it again to stop and save the video.

Downward Vision System

The downward vision system and TOF ranging system are located on the underside of the drone. The downward vision system uses a camera, while the TOF ranging system uses a light pulse sensor module for TOF detection. This provides a reference for the drone's height above the ground and helps calculate its position with the downward vision system.

Application Scope:

The positioning function of the downward vision system is ideal for areas with weak or no GPS signals, provided the surface is textured and well-lit. The optimal working height is between 0.5m and 10m. Flying above this height may impair visual positioning effectiveness, so fly cautiously in such conditions.

Important Notes:

• Maximum hover height is 2.5 meters with the downward vision system in an open, flat field without GPS.
• The downward vision system may not function correctly over water surfaces. Maintain full flight control.
• The downward vision system is not suitable for high-speed flight. Flight speed should not exceed 4.8m/s at 1m height or 10m/s at 2m height.
• The system cannot recognize featureless surfaces and may not function correctly in environments with insufficient or excessive light.
• Do not block or interfere with the image processing system or use it in dusty/foggy environments. Do not block the TOF sensor.
• Avoid flying in rain, fog, or other low-visibility conditions (visibility under 100m).

The system may not function properly in the following cases:

• Monochromatic surfaces (black, white, red, green).
• Surfaces with strong reflections (ice).
• Water surfaces or transparent objects.
• Surfaces of moving objects (crowds, wind-blown grass).
• Environments with dramatic lighting changes.
• Surfaces that are too dark (<10 lux) or too bright (>40,000 lux).
• Material surfaces with high absorption or reflection (mirrors).
• Surfaces with sparse textures.
• Surfaces with repeating textures (e.g., small checkered tiles).
• Tiny obstacles (branches, wires).

2.6 Additional Instructions

Replacing Propellers

1. Remove propeller screws with a screwdriver and take off the propellers.
2. Replace with new propellers and tighten the screws. Ensure the rotation direction (clockwise or counter-clockwise) matches the symbols on the arm and propeller. Incorrect installation will prevent flight.

Important: Ensure propellers are securely attached. Replace deformed or damaged propellers before flying.

Removing the Battery

1. Press the textured parts of the buttons on both sides of the battery.
2. Pull the battery towards the rear of the drone to remove it.

3. Appendix

3.1 Specifications

Drone

• Image Sensor: 1/2.3-inch CMOS; 48 Million effective pixels
• Lens: FOV 83°; 4.49mm
• ISO Range: 100-1600
• Electronic Shutter: 1/2-1/4000
• Photo Resolution: 8192*4608/3840*2160
• Video Resolution: UHD: 3840*2160 (30fps), FHD: 1920*1080 (60fps)
• Storage Max Coderate: 50/100Mbps
• Supported File System Format: Fat32; exFat
• Image Format: JPEG; RAW
• Video Format: MP4
• Supported Memory Cards: MicroSD card, max 128GB, 50 MB/s (C10/UI/V10 or higher); 100 MB/s (U3/V30 or higher).
• Diagonal Motor Distance: 241.6mm
• Dimensions (L*W*H): 167.4mm*217.8mm*62mm (unfolded), 143mm*82.8mm*62mm (folded)
• Takeoff Weight: 249g
• Max Ascent Speed: 4m/s (standard)
• Max Descent Speed: 3.5m/s (standard)
• Max Horizontal Speed (no wind): 14m/s
• Max Tilt Angle: 35°
• Max Takeoff Altitude: 4500m
• Max Wind Speed: Wind force 5
• Battery Specification: 7.7V, 2250mAh, LiPo 2S, 10C
• Operating Temperatures: -10°C to +45°C
• Maximum Flight Time: 30 minutes (hovering in a windless environment, from 100% battery to 0%)

Gimbal

• Controllable Rotation Range: 3-axis (Pan, Tilt, Roll)
• Pitch: -90° to 30°
• Stabilization: 3-axis
• Stability Precision: ±0.01° (static), ±0.02° (dynamic)
• Max Control Speed: 5°/s ~ 100°/s adjustable
• Angle Control Precision: ±0.01°

Transmitter

• Built-in Lithium Battery: 3.7V 3900mAh LiPo
• Dimensions (LxWxH): 152.5x47x82mm (folded)
• Operating Frequency: 2.4GHz

Downward TOF and Visual Positioning System

• Precise Measurement Range: 0.25m-5m
• Visual Hovering Range: 0.25m-10m

3.2 Contact Us

Please contact us for further assistance:

• usa@holystone.com (America)
• eu@holystone.com (Europe)
• www.holystone.com
• +1 (833) 766-4733

3.3 Troubleshooting

3.4 Regulatory Compliance Information

Other Information

EU RF Power (EIRP): <14 dBm (2452MHz- 2474MHz)

Caution:

• The EUT's maximum operating temperature is 45°C and should not be lower than -10°C.
• The device complies with RF specifications when used directly on your body (0 mm).
• Declaration of Conformity: Xiamen Huoshiquan Import & Export CO.,LTD declares that the product described in this user manual complies with Directive 2014/53/EU, General Product Safety Directive 2009/48/EC, and RoHS Directive 2011/65/EU.
• Product Name: Remote control four-axis series
• Model/Brand Name: HS900/HOLYSTONE
• The Declaration of Conformity is available at: http://www.holystone.com/Download/CE/HS900_EU_DOC.pdf
• This device may be operated in EU member states.

Manufacturer Information

• Manufacturer: XIAMEN HUOSHIQUAN IMPORT & EXPORT CO.,LTD
• Address: Unit 1, Room 501, Hongxiang Building, No.258 Hubin Nan Road, Siming District, Xiamen, China
• Contact: +1 (833) 766-4733

MTOM Declaration:

The HS900 is a quadrotor drone with an MTOM of 249g (including propellers, flight battery, and TF card), meeting C0 requirements. To maintain C0 compliance, users must:

• Not add any payload other than qualified accessories.
• Not use unqualified spare parts (e.g., batteries, propellers).
• Not modify the aircraft.

List of Qualified Accessories:

• HS900 Propeller (0.8g per propeller)
• HS900 Drone Battery (approx. 83.2g)
• HS900 TF Card (approx. 0.3g)

List of Spare and Replacement Parts:

• HS900 Propeller (0.8g per propeller)
• HS900 Drone Battery (approx. 83.2g)

List of Safety Measures:

Mechanical and operational safety precautions for the HS900:

1. Prevent the drone from flying in restricted airspace. Refer to the 'Flight Environment Requirements' section for details.
2. Return to Home (RTH) function. Refer to the 'GPS Return to Home' section for details.
3. Optical Flow Positioning. Refer to the 'Optical Flow Positioning' section for more information.

The drone complies with relevant safety and operational standards, including those related to restricted airspace, RTH functionality, and optical flow positioning.