Eachine Novice-IV 3-4S Brushless Long Range FPV Drone

1. Installation and Setup

Antenna Mount and Battery Anti-slip Mat: Screw the antenna fixing mount and insert the antenna sleeve into the fixing mount. Secure with hot melt glue at positions ①, ②, and ③.

2. Specifications

• Brand Name: Eachine
• Item Name: Novice-IV 3-4S 4inch LR drone and RTF
• Wheelbase: 170mm
• Size: 180mm*130mm*40mm (without propellers, batteries, antenna)
• Weight: 125g (without battery)

3. Features

• Lightest 4inch LR FPV drone
• New AIO Flight controller with 25A ESC
• Efficiency 1404 KV2750 brushless motor
• Long flight time: approx. 20 minutes with stock battery (sub 250g), approx. 31 minutes with 4s 18650 3000mAh battery
• Very stable and easy to control
• With M8N GPS Rescue system
• With Buzzer and LED drone tracker finder
• Distance Range: more than 1KM in an open area without interference

4. Advanced Function Description

DT-B90 Buzzer & LED Finder:

• Powers itself to beep and flash LED even when the drone battery is ejected.
• Press the button for 2-3 seconds to turn on before flying.
• Can be activated using AUX4 (SF Switch) channel.
• Press the button for 2-3 seconds to turn off after disconnecting the main battery.

Eachine M8N GPS Rescue Function:

• Before Arming: GPS must lock onto more than 6 satellites to establish the home position.
• During Flight: Observe OSD data. Rescue function works normally only if the distance exceeds 100 meters; otherwise, the quad may crash.
• Signal Loss: If the remote controller signal is lost, the GPS rescue function will automatically activate, returning the drone to the home position. The drone will not land automatically. Manual control is required once the signal is restored.
• Activation: The GPS rescue function is not enabled by default via an auxiliary channel. It can be configured in the Betaflight configurator's 'Modes' tab.

5. Starting FPV Flight

• Install the antenna to the radio and goggles.
• Power on the radio and goggles. The Novice-IV is pre-bound to the radio and set to the correct video channel for the goggles.
• Plug in the battery. Place the Novice-IV on a stable surface for calibration (takes a few seconds).
• Fly in open areas, away from crowds and buildings.
• Step 1: Install the battery into the radio (Picture A) and turn on the power switch. Press any key to skip any alarms (Picture B).
• Step 2: Connect the battery to the Novice-IV drone and secure it properly with the LiPo strap.
• Step 3: Turn on the EV800DM goggles. Check the video feed and OSD information. Ensure GPS has locked onto more than 6 satellites for the home position.
• Step 4: Keep the throttle stick at its lowest point and toggle the SE switch to arm the Novice-IV drone. The goggles will display an "ARMED" notice. Fly safely.

6. Flight Modes

Toggle the SB switch to change flight modes. Default is Air Mode. Angle Mode is recommended for beginners. Motors will auto-spin when armed in Air Mode.

7. Charging the LiPo Battery

• Radio Battery Charge: Connect the radio's charging cable.
• Main Battery Charge: Connect the main battery to the charger.
• Charging Process: After inserting the adapter, the charger emits a "drop" sound. The display shows battery voltage. Charging starts after two "drip-drip" sounds. The display cycles through voltage readings. Charging stops automatically when full, displaying "FULL" and flashing, with a buzzer sounding every five seconds.
• Voltage Display: Inserting the battery (without connecting the adapter) shows the battery voltage.

8. Flight and Radio Stick Controls

Always fly with caution in open, controllable areas. Learn the flight controls before powering on the aircraft. The left stick controls throttle and yaw. The right stick controls pitch and roll.

• Left Stick: Pushing up increases throttle (climb), pushing down decreases throttle (descend). Moving left or right controls yaw (nose left/right).
• Right Stick: Pushing forward moves the drone forward (pitch up), pulling back moves it backward (pitch down). Moving left or right controls roll (roll left/right).

9. Flight Controller Connection Diagram

The flight controller has various connection points for motors, power, GPS, VTX, and receiver. Key connections include:

• Power: 3-4S BAT +, GND
• Motors: M1, M2, M3, M4 (with specific A, B, C designations for some)
• GPS: VCC, GND, TX, RX
• VTX: Video_out, GND, +5V, Smartaudio (on UART1)
• Receiver: RX2 (for SBUS), GND, VCC, TX1
• Other: LED_STRIP, BUZ-, BOOT

10. Binding Procedure

• Press and hold the BIND button on the receiver, then plug in the USB to power it. The receiver's Red LED will become solid after approximately 3 seconds, indicating bind mode.
• In the radio transmitter, select the Frsky D8 protocol from the Multi mode and press the [BIND] option. The receiver's Red LED will blink rapidly, indicating successful binding.
• Unplug and replug the USB. A solid Red LED on the receiver confirms the connection with the radio is established.
• LED Status Meanings: Solid: Normal operation or in Bind mode. Blinking: Bind successful. Turned off: No RC signal.

11. Receiver Configuration (Betaflight Configurator)

• Ports Tab: Enable Serial RX for UART6.
• Configuration Tab: Set Receiver Mode to "Serial-based receiver" and select "SBUS" as the Serial Receiver Provider.

12. VTX Bands and Channels Setup

The VTX (Video Transmitter) allows selection of different bands and channels for video transmission. The frequency table lists available frequencies for each band and channel.

• Switching Channels/Bands:
  • Short press the switch button to select VTX channel; press and hold to select VTX Band (settings may not save after power off).
  • Use Betaflight CLI commands: `set vtx_band=X` and `set vtx_channel=Y`, then `save`. Ensure `vtx_freq` matches the selected band and channel.
  • Enable Smartaudio for UART1. Use the transmitter stick combination (THR MID + YAW LEFT + PITCH UP) to enter the OSD Menu, navigate to Features, then VTX SA to set VTX Band and channel.
• VTX Components: Includes U.FL connector, Band LED indicators (1-5), Channel LED indicators (1-8), 25MW/100MW/200MW power settings, GND, +5V out, Cam IN, Video OUT, GND, +5V Input, Smartaudio.

13. Goggles and VTX Receiver Channel Setting

The goggles feature several buttons for operation:

• 1) CH+/Band+: Short press to cycle through channels 1-8.
• 2) POWER and RETURN: Long press to boot/shut down. Short press during operation to return.
• 3) SRC/MENU: Short press to select video sources (V-in, RF A, RF B, Diversity). Long press to access the MENU.
• 4) SEARCH: Press to automatically search for signals.
• 5) CHARGING PORT: DC 5-18V input for recharging or power backup (typically @ 5V/2A).
• 6) RESET: Reset hole for device shutdown if necessary.
• 7) TF CARD SLOT: Supports up to 32GB cards (C10 recommended).
• 8) VIDEO IN/AUDIO OUT PORT: Video input in AV mode; Audio output in RF mode.
• 9) Pic/Rec: Short press to take a screenshot. Long press to start video recording; short press again to save. In MENU operations, use buttons 3, 4, and 1 to navigate settings (shift down, increase, decrease).
• Charging Indicator LED: Red when charging, Green when fully charged.

14. Mixer Type, ESC/Motor Protocol, and Sensor Alignment

• Propeller Installation: Fix CCW propellers onto M1 and M4 motors (CCW motors). Fix CW propellers onto M2 and M3 motors (CW motors).
• ESC/Motor Features: Supports DSHOT600, ESC telemetry, and Bidirectional DShot. Settings include Motor poles, Motor Idle Throttle Value, Motor STOP, Demag Compensation, and Motor Timing.
• Board and Sensor Alignment: Settings for Roll, Pitch, and Yaw degrees, as well as MAG Alignment, can be configured.

15. GPS and GPS Rescue Settings (Betaflight Configurator)

• GPS: Enable GPS for navigation and telemetry. A Serial Port must be configured in the Ports tab.
• UBLOX Settings: Configure Protocol, Auto Baud, Auto Config, Use Galileo, Set Home Point Once, Ground Assistance Type, GPS Rescue parameters (Initial altitude, Descent distance, Ground speed, Throttle minimum/maximum/hover, Ascend rate, Descend rate), Minimum satellites, and Return to Home settings.
• Arming Warning: "Allow arming without fix" is available but warns that GPS Rescue will not be available.

16. Radio Channels/Switch and Betaflight Mode Setting

The radio transmitter features various controls:

• Switches: SE (3 Position), SB (3 Position), SA (Button), SF (3 Position), SC (3 Position), SD (Button).
• Sliders/Pots: S1 Slider Pot, S2 Slider Pot.
• Gimbals: Left Gimbal, Right Gimbal.
• Buttons: SYS Button, RTN Button, PAGE> Button, PAGE< Button, TELE Button, Power Button, MDL Button, Trim Buttons, Menu Wheel.
• Ports: Trainer Port, TYPE-C USB, Antenna.
• Mode Mapping: Switches can be assigned to various flight modes (e.g., ANGLE, HORIZON, ACRO, AIR MODE) and functions (e.g., BEEPER, ARM) within Betaflight.

17. ESC Check and Flash Firmware

1. Download BLHeliSuite: Obtain the latest version from mediafire.com/folder/dx6kfaasyo241/BLHeliSuite.
2. Connect Flight Controller: Connect the NOVICE-IV flight controller to your computer via USB.
3. Device Manager Check: Open Device Manager, locate Ports (COM & LPT). Ensure the COM port serial number is under 255. If it's higher (e.g., COM256), adjust it by going to Advanced Settings for the COM port and selecting a lower number.
4. Using BLHeliSuite: Open BLHeliSuite. Select "SILABS BLHeli Bootloader (Cleanflight)" from the top tabs. Choose the correct Serial COM port and click "Connect". You can flash new BLHeli_s firmware using BLHeliSuite, targeting "F-H-40".
5. ESC Overview: BLHeliSuite displays ESC details, allowing configuration of Startup Power, Temperature Protection, Low RPM Power Protect, Motor Direction, Demag Compensation, Motor Timing, Beacon settings, etc.
6. Flashing: Use "Read Setup" to get current settings, "Write Setup" to save, and "Flash BLHeli" or "Flash Other" to update firmware. A "Check" button can show details of the 4-in-1 ESC.

18. Flight Controller Firmware Update

1. Install Drivers: Install the latest STM32 Virtual COM Port Driver from st.com/web/en/catalog/tools/PF257938 and the STM BOOTLOAD Driver (for STM Device in DFU MODE).
2. Betaflight Configurator: Open Betaflight configurator. Select the firmware target "BETAFLIGHTF4" and the desired firmware version.
3. Enter DFU Mode: There are two methods:
   • Press and hold the boot button, then plug in the USB cable to the computer.
   • Initiate a firmware flash in Betaflight and it will automatically enter DFU Mode.
4. Replace Drivers: Use Zadig tools to replace the drivers from "STM32 Bootloader" to "WinUSB Driver".
5. Reconnect and Flash: Reconnect the flight controller to the computer after driver replacement. Open Betaflight Configurator, load the firmware, and flash it.