Eachine QX105 BAT Micro FPV Racing Drone

Introduction

Welcome to the Eachine QX105 BAT Micro FPV Racing Drone. This guide provides essential information for setup and operation.

1. Specifications

Diagram Description: A technical drawing shows the drone's dimensions: 112mm length, 106mm width, and 43mm height. A top-down view indicates a rotor diameter of approximately Ø105mm.

2. Components

Diagram Description: A detailed exploded view diagram labels various parts of the drone with part numbers like QX105V, QX105P, QX1055(CCW), QX1055(CW), QX1054, QX912, QX95L, QX105B, QX1056, QX1052, QX1053, QX1051, QX105B.

3. 5.8G VTX Channels List

VTX Connector Description:

• Orange: Camera video signal
• Blue: Video out
• Red: +5V
• Black: GND

VTX Control:

• NTSC/PAL Switch: Long press for 2 seconds to switch between NTSC and PAL video display.
• Frequency Group A-F: Select frequency group with a long press (2 seconds).
• Channel CH1-CH8: Select channel with a short press.

4. General Product Safety Precautions

⚠️ CAUTION: Read and follow all instructions and warnings before setup or use. Incorrect operation can lead to product damage, personal property damage, or injury. This is a sophisticated hobby product requiring caution, common sense, and basic mechanical ability.

• As the user, you are responsible for operating the product safely and not endangering yourself or others, or damaging the product or property.
• Operate in open spaces away from people and property.
• Never operate with damaged electrical components.
• Keep the transmitter powered on while the model is powered on.
• Allow parts to cool after use before touching; motors can get hot.
• Remove batteries after use, as applicable.
• Keep batteries, chemicals, small parts, and electrical items out of reach of children.
• Avoid water exposure; keep parts dry.
• Keep moving parts clean.

5. Flight Controller Connection Diagram

Diagram Description: The flight controller (FC) board is shown with connection points labeled:

• M1, M2, M3, M4: Motor outputs.
• BIND: Receiver binding connection.
• USB: For connecting to a computer.
• VCC, GND: Power connections.
• BOOT: Bootloader button.

6. Charge the Flight Battery

NOTICE: Inspect the battery for damage (swollen, bent, broken, punctured). Charge only batteries that are cool to the touch and undamaged.

Charging with Balance Charger

Connect the 2 batteries and the charge cable to a 2S Balance charger (e.g., B3PRO, 3S10D, 4S15D, Charsoon DC-4S). ⚠️ CAUTION: Only use 2 batteries together for charging. ⚠️ CAUTION: Once charging is complete, immediately remove the battery. Never leave a battery connected to the charger.

Charging with USB Li-Po Charger

Connect the battery to the USB Li-Po Charger, then plug it into your computer's USB port.

LED Status:

• Solid Red LED: Charging
• Solid Blue LED: Charge Complete

7. QX105 Frsky BNF Version Binding Procedure

1. Power on the QX105 while holding the Bind button. The Green LED on the receiver will become solid, indicating binding mode. Release the Bind button.
2. Turn on your Radio transmitter and select D8 mode for the Receiver. Navigate to the Receiver [Bind] option and press ENT to bind with the QX105. The Green LED on the receiver will turn off, indicating successful binding.
3. The default receiver channel map for the QX105 Frsky version is TAER1234. Ensure your transmitter is matched to this configuration; otherwise, it cannot be armed. The RSSI output is set to CH9.

Green LED Status Meaning:

• Solid: Works normal or Binding mode
• Blinking: Lost signal
• Off: Binding successfully

Diagram Description: Images show the drone during the binding process and a close-up of the receiver's green LED status.

Transmitter Configuration (Taranis X9D Example):

The default receiver channel map is TAER1234. Ensure your transmitter settings match this. The RSSI output is set to CH9.

8. Arm/Disarm QX105 Frsky BNF

1. The default Arm/Disarm switch for the QX105 is AUX1 (Channel 5). This can be customized using Betaflight Configurator. AUX2 (Channel 6) is set for flight mode changes, and AUX3 (Channel 7) is for activating the buzzer. These can also be customized.
2. Set Arm/Disarm Switch (Taranis X9D Example): Navigate to the MIXER interface. Set a switch (e.g., "SA" or "SB") for CH5 to ARM/DISARM the motor. A 3-position switch is suggested for changing flight modes.
3. Toggle the AUX1 switch. The buzzer will beep once, and the Blue LED on the flight controller will turn off and then become solid, indicating the motor is armed. You will see "ARMED" displayed on your FPV Goggles or monitor.

Diagram Description: Screenshots show Betaflight's "Modes" configuration for setting up ARM, AIR MODE, and ANGLE modes using AUX channels. Another screenshot shows the Taranis X9D radio interface with mixer settings.

9. QX105 Frsky BNF Version Receiver Configuration

The Frsky receiver is pre-configured for the QX105. If you flash the firmware, follow these steps:

1. Enable Serial_RX for UART3 in Betaflight Configurator.
2. Set the RECEIVER Mode to RX_SERIAL.
3. Set the Serial Receiver Provider to SBUS.

Diagram Description: A screenshot of Betaflight's "Ports" and "Receiver Mode" settings is shown, illustrating the configuration for RX_SERIAL and SBUS.

10. QX105 Flysky BNF Version Binding Procedure

1. Power on the QX105 while holding the Bind button. The Green LED on the receiver will blink rapidly, indicating binding mode. Release the Bind button.
2. Ensure your Flysky Radio is set to AFHDS 2A Mode. Turn on your radio while holding the binding button to initiate binding with the QX105. The Green LED will turn off briefly, then start blinking slowly, indicating successful binding. The Green LED will be solid when the connection is established.
3. The default receiver channel map for the QX105 Flysky version is AETR1234. Ensure your transmitter is matched to this configuration; otherwise, it cannot be armed.

Green LED Status Meaning:

• Solid: Works normal
• Blinking slowly: Lost signal
• Blinking fast: In binding mode
• Off: Binding successfully

Diagram Description: Images show the drone during binding and a close-up of the receiver's green LED status, along with a Flysky radio interface.

11. Arm/Disarm QX105 Flysky BNF Version

1. The default Arm/Disarm switch for the QX105 is AUX1 (Channel 5). This can be customized using Betaflight Configurator. AUX2 (Channel 6) is set for flight mode changes, and AUX3 (Channel 7) is for activating the buzzer. These can also be customized.
2. Set Arm/Disarm Switch (Flysky Radio Example): Navigate to the Aux. channels interface. Set a switch (e.g., "SWA", "SWB", or "SWC") for CH5 to ARM/DISARM the motor. A 3-position switch (like "SWC" on the Flysky FS-i6) is suggested for changing flight modes.
3. Toggle the AUX1 switch. The buzzer will beep once, and the Blue LED on the flight controller will turn off and then become solid, indicating the motor is armed. You will see "ARMED" displayed on your FPV Goggles or monitor.

Diagram Description: Screenshots show Betaflight's "Modes" configuration for setting up ARM, AIR MODE, and ANGLE modes using AUX channels. Another screenshot shows the Flysky radio interface with channel settings.

12. QX105 Flysky Version Receiver Configuration

The Flysky receiver is pre-configured for the QX105. If you flash the firmware, follow these steps:

1. Select RX_PPM from the RECEIVER Mode in Betaflight Configurator.

Diagram Description: A screenshot of Betaflight's "Ports" and "Receiver Mode" settings is shown, illustrating the configuration for RX_PPM.

13. QX105 DSM2/DSMX BNF Version Binding Procedure and Satellite Receiver Setup

The QX105 DSM2/DSMX BNF Version integrates a DSM2/DSMX compatible Satellite receiver. The binding procedure is as follows:

1. Connect the QX105 DSM2/DSMX BNF Version to a computer and open Betaflight Configurator.
2. From the CLI tab, type: set spektrum_sat_bind = 9 for DSMX radio, or set spektrum_sat_bind = 5 for DSM2 radio.
3. Type save, then reboot the Flight Controller (disconnect and reconnect the USB cable).
4. Wait a moment, then reconnect the USB cable. The satellite LED (Orange color) should start blinking. Turn on your transmitter while holding the bind button.
5. After binding, the satellite LED should be solid. Connect to Betaflight and use the receiver tab to test functionality.
6. Finally, go back to the CLI tab, type set spektrum_sat_bind = 0, and then type save. This prevents the satellite from entering binding mode upon repowering.

Orange LED Status Meaning:

• Solid: Works normal
• Blinking fast: Binding mode
• Off: Lost signal

Diagram Description: Screenshots show the drone and examples of CLI commands for setting up DSMX, DSM2, and closing the binding process.

15. QX105 DSM2/DSMX BNF Version Receiver Configuration

The satellite receiver is pre-configured for the QX105. If you flash the firmware, follow these steps:

1. Enable Serial_RX for UART3 in Betaflight Configurator.
2. Set the Receiver mode to RX_SERIAL.
3. Select SPEKTRUM1024 for DSM2 Radio or SPEKTRUM2048 for DSMX Radio.

Diagram Description: A screenshot of Betaflight's "Ports" and "Receiver Mode" settings is shown, illustrating the configuration for RX_SERIAL with SPEKTRUM1024/2048.

14. Arm/Disarm QX105 DSM2/DSMX BNF Version

1. The default Arm/Disarm switch for the QX105 DSM2/DSMX BNF Version is AUX1 (Channel 5). For most Spektrum radios, the default Channel 5 is the GEAR switch. This can be customized using Betaflight Configurator. AUX2 (Channel 6) is set for flight mode changes, and AUX3 (Channel 7) is for activating the buzzer. A 3-position switch is suggested for changing flight modes.
2. Set Arm/Disarm Switch: Turn on the transmitter and set a switch for CH5 to ARM/DISARM the motor. For Spektrum transmitters like DX6/DX6i, the default CH5 is the GEAR Switch.
3. Toggle the AUX1 Switch. The buzzer will beep once, and the Blue LED on the flight controller will turn off and then become solid, indicating the motor is armed. You will see "ARMED" displayed on your FPV Goggles or monitor.

Diagram Description: Screenshots show Betaflight's "Modes" configuration for setting up ARM, AIR MODE, and ANGLE modes using AUX channels.

16. OSD Configuration

1. Connect the QX105 to your computer and open Betaflight Configurator. Navigate to the OSD option to configure the layout.
2. The "Craft Name" setting is found within the configuration options.

Diagram Description: Screenshots show the Betaflight OSD configuration interface, allowing users to select and position elements like Battery Voltage, Crosshairs, Horizon, Timer, Flytime, Flymode, and Craft Name. It also shows the main configuration screen where settings like GPS, Receiver, ESC, LED Strip, and OSD can be managed.

17. LED Strip Function

The flight controller of the QX105 can control the colors and effects of individual LEDs on a strip. The default setup is provided, and you can customize effects yourself.

Diagram Description: A grid interface shows how to configure LEDs on a strip, including selecting colors and assigning functions. It indicates that LEDs without wire ordering numbers will not be saved. Users can double-click a color to edit HSV values.

18. LED Strip Status

The status of the LEDs indicates different states of the drone: