Flywoo Explorer LR 4 Manual - Analog Version

1/ Drone Introduction

The Explorer LR quad is a collaboration between Flywoo and #microlongrange creator Dave_C. #Micro long range is a new field that Flywoo aims to explore further with Dave_C.

The drone is designed for long-range cruising through epic landscapes, offering a quieter alternative to larger FPV quads. The core concept behind the #MicroLongRange project was to scale down a 7" long-range quad to under 250g takeoff weight. This iteration, the Explorer LR, incorporates numerous improvements based on community feedback.

Equipped with GPS, Crossfire, and an independent model finder, this quad provides the confidence for maximum range with digital and analog video transmission. It features the GOKU 16x16 stack and new 2750kV 1404 motors spinning 4" props for optimal efficiency and low weight. Flight times exceeding ten minutes on an 850mAh 4S LiPo battery are achievable, with cruising speeds of 40-50 kph (25-30mph).

Recommendation: Installing side carbon fiber plates is recommended to enhance the strength and stability of the arms.

2/ Configuration and Wiring Diagram Description

Explorer LR 4 Vista / Nebula pro BNF Specification:

• Goku F411 V2.1 nano stack 16x16
• Dave_C & Nin 1404 V2 2750kv motors
• Goku M8N mini GPS v2.0
• Flywoo Finder v1.0
• Gemfan 4024 props
• Atomic 5.8 G antenna RHCP
• Camera: CADDX ANT
• VTX: FLYWOO HM600

Recommended Battery:

• Naked Gopro & SMO 4K & Insta360 go
• Explorer 18650 / Tattu 1050 4s mah
• 650 4s mah

Highlights & Specification:

• Lightweight 4-inch quad under 250g, compliant with FAA rules.
• Easy to control and offers long flight times, recommended for FPV beginners and long-range enthusiasts.
• Equipped with GOKU 16X16 MICRO STACK and NIN 1404 v2-2750kv motors, supports 4S battery.
• Potential for up to 20 minutes of cruising time.

GOKU FC SERIES - GOKU F4 13A STACK 16X16 Specifications:

• Size: 22*23mm
• Hole: 16*16-3mm
• MCU: STM32F411CEU6
• GYRO: MPU6000
• FLASH: 8M
• BEC: 5V 2A
• Input Voltage: 2-6S
• Firmware: FLYWOOF411 V2

BS13A BLheli_S 2-4S 4in1 Specifications:

• Weight: 2.5g
• Mounting Hole: 16x16mm (M3)
• Support Oneshot, Multishot, DShot150/300/600

VTX HM600 Specifications:

• Frequency: 5 bands 40 channels
• Power: PIT/25/50/100/200/600mW
• BAT: +7-26V Input
• Antenna: IPX
• Size: 30mm×30mm×4mm
• Weight: 2g

Betaflight Configuration:

UART Mapping:

• SOFTSERIAL1 TX is mapped to PIN B06
• CLI: RESOURCE SERIAL_TX 11 B06
• UART1: TBS/R9M/XM+/DSMX/SBUS receiver
• UART2: GPS module, the default baud rate is 9600
• SOFTSERIAL1: VTX IRC/SA Control

Betaflight Configuration Table:

Frequency Table

Note: Selections marked with 'XXXX' require a HAM license to operate legally. Other selections are available upon special request.

3/ Receiver Binding

TBS NANO 915:

• Connect the USB, and observe the green light flashing on the receiver. Follow the provided image for the binding procedure.
• Link: https://www.youtube.com/watch?v=-iNkVcOLITM&ab_channel=Danimal3D

R9MM FCC ACCESS OTA:

• Ensure your remote control supports the ACCESS protocol. Follow the provided link for registration and binding.
• Link: https://www.youtube.com/watch?v=az5hDdNBcjg&t=9s&ab_channel=FrSkyRC
• For ACCST protocol:
1. Copy the two provided firmware files to the SD card's firmware directory of your remote control: R9MM firmware: FW-R9MM-ACCST_v20190201, R9M TX module: FW-R9M-ACCST-20190117.
2. Insert the R9M TX module and write the required firmware.
3. To write the firmware for the R9MM receiver, remove the R9MM receiver and connect it via the S.PORT port.
4. Binding Method (ACCST):
   1. Press and hold the RX button, then power on. The red and green lights should be constantly lit.
   2. Select binding on the R9MM. The RX red light will flash, then exit.
   3. Power on the RX again. A single green light indicates successful binding.

XM+ receiver:

• Press the XM+ receiver button, and power on using USB. The red and green lights will be constantly lit.
• Turn on the remote control in binding mode. A flashing green light indicates successful binding. Turn off and restart the remote control.

3-1/ Receiver Configuration

Configure the corresponding serial port and receiver protocol to ensure normal channel output from the receiver.

Betaflight Configuration - Receiver Settings:

• Navigate to the 'Receiver' tab.
• Select 'Serial-based receiver' and choose the appropriate 'Receiver Mode' (e.g., CRSF, SBUS, IBUS).
• Note: A Serial Port must be configured in the 'Ports' tab, and a 'Serial Receiver Provider' selected when using RX_SERIAL.

4/ Mode Setting

Set the ARM switch and flight mode switch. AUX* corresponds to the remote control switch, and the highlighted area indicates activation.

5/ Motor Test

Unload the propellers. Turn on the safety switch and test the rotation direction of each motor individually.

Propeller Installation Diagram:

Note: Install propellers in the direction of the arrows. Incorrect installation can damage the drone.

Betaflight Motors Tab:

The 'Motors' tab in Betaflight allows for individual motor testing and visualization of voltage, amperage, and current draw.

6/ GPS Rescue Mode

GPS rescue can only be activated when the flight distance exceeds 100 meters. Otherwise, the drone may fall.

• When GPS rescue is activated, the drone will circle and ascend gradually, returning to the home location.
• The drone will not land automatically. Control must be restored to the pilot for landing.
• When GPS finds 5 satellites and locks, latitude, longitude, altitude, and distance information will be displayed.

Betaflight Failsafe Settings for GPS Rescue:

• Stage 1: Failsafe Switch Action - Set to 'GPS Rescue'.
• Stage 2: Settings - Configure 'Guard time for stage 2 activation after signal lost' and 'Failsafe Throttle Low Delay'.
• Stage 2 - Failsafe Procedure: Set 'Land' for the 'GPS Rescue' action.

7/ Bluetooth Function

The Betaflight APP can be used to configure the drone via Bluetooth. The app allows for OSD setup, sensor data viewing, and system configuration.

• OSD Setup: Customize on-screen display elements like RSSI, battery voltage, and crosshairs.
• System Settings: Adjust parameters such as gyroscope update frequency, PID loop update frequency, and accelerometer calibration.
• Quad X Configuration: Set motor direction and system settings.

8/ Finder BUZZER Function

The Flywoo Finder V1.0 provides two modes of operation:

• Mode 1: Compatible with traditional active buzzers and synchronized with flight control.
• Mode 2: If the main battery powers off during flight, the buzzer will emit a 100 dB sound after 30 seconds, and the LED will turn white.

To turn off the buzzer: Press and hold the release button for more than 2 seconds.

9/ Flight Firmware Upgrade and Write Default CLI

1/ Activate DFU Mode:

• Ensure the correct target firmware (e.g., FLYWOOF411HEX) is selected.
• If DFU mode is not entered, the driver may need to be installed using the ImpulseRC Driver Fixer software.

2/ BF Configurator:

• The BF Configurator will display DFU mode.
• Load the local HEX firmware and wait for the flashing to complete. A green progress bar indicates completion, and DFU will become a COM port.

3/ CLI Commands:

• After entering the CLI, write commands and press Enter. For example, to set rates:
• #set roll_rate 100
• #set pitch_rate 100
• #set yaw_rate 100
• To save changes, type SAVE and press Enter. The FC will restart.

4/ Return to Normal: After executing commands and saving, all FC functions should return to normal.