Happymodel Mobula7 - Drone Manual

Specifications

Package includes

Crazybee F4 V3.0 flight controller with External DSM2/DSMX receiver

Flight controller connection diagram

Binding procedure

1. Plug the USB and connect to betaflight configurator, from the CLI tab type: "set spektrum_sat_bind=9" for DSMX radio or "set spektrum_sat_bind=5" for DSM2 radio.
   
2. Type "save" and after Flight controller reboot then remove USB plug (=Power off the board)
3. Wait a second and reconnect the USB cable. After cold start the orange LED on the receiver should start blinking and transmitter should be turned on while pressing the bind button.
4. After binding the orange LED on the receiver should be solid. Connect to Betaflight and use receiver tab to test that satellite receiver is working correctly.
5. Final step is to go to CLI tab and type "set spektrum_sat_bind=0" and then type "save". This must be done so that satellite receiver doesn't go back to binding mode when the flight controller is repowered again.
   

Mobula7 HD brushless whoop Racing Drone DSMX/DSM2 version

Receiver configuration

We have configured the DSM2/DSMX receiver for the Mobula7 HD before shipping. If you flashed the firmware, Please setup as the following steps: Enable Serial_RX for UART2, then select RX_SERIAL from the RECEIVER Mode and set the Serial Receiver Provider to be Spektrum1024 for DSM2 radio and Spektrum2048 for DSMX Radio in Betaflight Configurator.

Arm/Disarm the Motor

1. The Default Arm/Disarm switch for Mobula7 HD is AUX1(Channel 5), and you can also customize it with Betaflight Configurator.
   
2. For most of Spektrum radio the default channel 5 is Gear switch and you can also customize it. Use DX9 for example, Go to menu and select System setup, then choose Channel assign.
   
3. The default channel map for Mobula7 HD DSM2/X version is TAER1234, please make sure your transmitter is matched, otherwise it will can't be armed. Toggle the AUX1 Switch, the Green LED on the flight controller will getting to be solid, this indicates the motor was armed. And also you can found "Armed" displayed on your FPV Goggles or the FPV Monitor. Please make sure keep the Mobula7 HD level before arming. Be careful and enjoy your flight now!
   

VTX Bands and Channels setup

There are 3 ways to switch the VTX channels:

1. Long press the switch button to change the Band of the VTX, shorter press the switch button to change the channels of the VTX.
   (Can't save, it will lose the channel while re-power for the Mobula7 HD since the Smartaudio function enabled)
2. Go to Betaflight CLI, type the command:
   Set vtx_band=3
   Set vtx_channel=1
   Set vtx_freq=5705
   save
   Notes: The vtx_freq should match the vtx_band and vtx_channle as the VTX Channel list shows.
   For example, if you set vtx_freq=5732, you should set vtx_band=5 and vtx_channel=3
3. Enable Smartaudio for UART1, then move the stick of the transmitter (THR MID+YAW LEFT + PITCH UP) to enter OSD Menu, Enter to Features, then enter to VTX SA to set VTX Band and channel
   

Mixer type and ESC/motor protocol

Default PID setting

ESC Check and Flash firmware

1. Download New release Blhelisuite from:
   https://www.mediafire.com/folder/dx6kfaasyo24l/BLHeliSuite
2. Connect the Crazybee F4 PRO flight controller to computer and power for it with battery
   
3. Open the Device Manager of your computer, find the Ports, please make sure the Com port Serial Number is under 255, otherwise it will can't connect to the BLHELISUITE. You can change the port serial number like the bellowing step:
   
4. Open the BLHELISUITE, Select SILABS BLHeli Bootloader (Cleanflight) from the third tab on the top side. Then Select the right Serial com port and Click connect. You can also Flash the new release BLHeli_s firmware via the BLHEILISUITE, the firmware Target is "F-H-40"
   

Flight controller firmware update

1. Install latest STM32 Virtual COM Port Driver
   http://www.st.com/web/en/catalog/tools/PF257938
2. Install STM BOOTLOAD Driver (STM Device in DFU MODE)
3. Open Betaflight configurator and choose firmware target "CrazybeeF4DX",then select the firmware version.
4. There are 2 ways to get inDFU Mode:
   1. solder the boot pad and then plug USB to computer
   2. loading betaflight firmware and hit "flash", then it will getting into DFU Mode automatically.
5. Open Zadig tools to replace the drivers from STM32 Bootloader to WINUSB Driver.
   
6. Reconnect the flight controller to the computer after replace driver done, and open Betaflight Configurator, loading firmware and flash.

"Flip over after crash" procedure

Set one channel of your radio transmitter to activate the Flip over function in the Mode tab of Betaflight configurator.

Notes

1. Add external Sbus RX---Connect SBUS wire to the IRX1 pad --- Enable Serial RX for UART1 --- Choose serial_based receiver and Sbus protocol --- TX2 could use for Smartaudio
2. Breath light meanings: If the single cell voltage > 3.6v, the LED turn to green color, if the single cell voltage <3.3v the LED turn to red color.
3. No videos from Caddx turtle2 if just power from USB, need to connect the battery