FETtec FC G4 Bedienungsanleitung
Page 1
FETtec FC G4 v1.7
Manual
Page 2
Introduction ..................................................................................................................................3
Features.......................................................................................................................................3
Safety warning .............................................................................................................................4
Recommended steps for installation of the FETtec FC G4 v1.7 ..................................................4
Connection Diagram ....................................................................................................................6
Connection Layout top..............................................................................................................6
Connection Layout bottom........................................................................................................7
ESC connection diagram .............................................................................................................9
ESC connection via 8 pin connector.........................................................................................9
Single ESC connection diagram.............................................................................................10
Receiver connection diagram.....................................................................................................11
TBS Crossfire .........................................................................................................................11
SBUS receiver / FrSky R-XSR ...............................................................................................11
Analog FPV connection diagram................................................................................................12
Digital FPV connection diagram.................................................................................................13
DJI/Caddx/Runcam Vista FPV system ...................................................................................13
Fatshark Shark Byte system...................................................................................................14
Caddx Walksnail.....................................................................................................................14
FC configuration.........................................................................................................................15
Get back to KISS .......................................................................................................................18
Firmware updates ......................................................................................................................20
Settings ......................................................................................................................................21
OSD ...........................................................................................................................................22
Update....................................................................................................................................22
Settings ..................................................................................................................................23
In the ALPHA Configurator..................................................................................................23
In the OSD menu ................................................................................................................25
Issues in the picture ............................................................................................................26
Move elements in the OSD menu .......................................................................................26
Display connection.....................................................................................................................27
Dimensions ................................................................................................................................28
Page 3
Introduction
Thank you for purchasing the FETtec FC G4 v1.7.
Features
•Latest STM32G473 Processor
◦180Mhz + Math accelerator
◦Gyro IIM-42652 SPI
•Supply voltage 6-27V (2S-6S Lipo)
•2x dedicated onboard BEC (2A each)
◦5V BEC for RX
◦5V/16V BEC for VTX (switchable and real Pit*)
•Improved IO protection
◦All IOs of the microcontroller e.g. in connectors or solder pads are protected against
voltage or current spikes
•2x 8 pin connector for solder free ESC connection
◦Connector 1: ESC signal 1-4, telemetry, VCC, GND
◦Connector 2: ESC signal 5-8 (depending on UAV type 1-4), telemetry, VCC, GND
•1x 8 pin connector for solder free VTX, cam connection and OSD or digital systems
◦real Pit* VCC, GND, Video in, Video out, BEC 5V/16V, VCS/TX3, RX3
•2x 6 pin connectors for serials
◦RX1, TX1, 3.3V, VCC, 5V, GND
◦RX3, VCS/TX3, RGB LED, VCC, 5V, GND
•1x 4 pin connector for receiver
◦Signal, TLM, 5V, GND
•5 UART serials
◦UART 1 free
◦UART 2 used for Receiver
◦UART 3 free
◦UART 4 used for onboard OSD, can be set free
◦UART 5 used for ESCs / TLM / Onewire
•4 ESC solder pads (Signal/GND) in each corner
•Buzzer pads
•4 tiny RGB LEDs (selectable color)
•Supported ESC protocols
◦PWM, Oneshot125, Oneshot42, Dshot150/300/600/1200/2400, FETtec Onewire
Page 4
•FETtec Alpha FC firmware (KISS FC firmware flashable)
•Updated Onboard OSD
◦Graphic OSD (STM32)
◦Full KISS Tuning
◦Filter (PIDs, Rates, Settings)
◦LED control (RGB LED, Racewire)
◦VTX
◦Live data graphs (Voltage, motor rpm, current, motor temp, gyro values, link quality)
◦KISS GPS support + live map
◦Custom graphic pilot logo
◦Stick overlay
◦Custom layout
◦can be deactivated for usage of digital systems
•Maximum outside dimensions: 37,2 x 37,2mm, without outside tips 30 x 30mm
◦Mounting hole arrangement:
▪20 x 20mm with M2 mounting hole (expandable to M3)
▪30 x 30mm with M3 mounting hole
▪30 x 30mm mounting hole tips are removable to reduce overall FC size
•Overall height: 7,9mm
•Weight: 5,37g
•Connector type: JST-SH-1mm
*real Pit-Mode: A power supply pin which is remotely switchable
Safety warning
•Remove propeller before flashing and configuration
•always flash latest firmware before operation
•
Recommended steps for installation of the FETtec FC G4 v1.7
•Connect to ALPHA Configurator and update to the latest firmware (see Firmware
updates)
•Install the FC in your copter (see Connection diagrams for correct wiring and installation)
•Make sure everything is connected properly and check without propellers
Page 5
•Connect to FETtec Toolset to proceed with final configuration of the FETtec FC G4
Page 6
Connection Diagram
Connection Layout top
The 8 pin connector combines all necessary connections for analog or digital VTX and camera.
It includes:
•Real Pit VCC (Lipo+)
•GND for cam and VTX
•Video in: Analog video signal from cam
•Video out: Analog video to VTX
•BEC 5V/16V: power supply for cam and/or VTX, switchable voltage, real Pit capable
•VCS/TX3: for smart audio / tramp configuration or TX for digital FPV systems
•RX3: for digital FPV systems
6 pin connector (SER3):
•RX3: for digital FPV systems or other functions configurable in GUI (same for VCS/TX3)
•VCS/TX3: for smart audio / tramp configuration or TX for digital FPV systems
•RGB LED: PWM signal pin to control WS2812 LEDs or similar (configurable in GUI)
•VCC: Battery voltage
•5V
•GND
Page 7
Connection Layout bottom
8 pin ESC connector 1:
•VCC: Battery voltage out to supply FC power
•GND
•TLM/Onewire: ESC Telemetry signal to FC or Onewire signal pin (depending on
configuration)
•ESC signal 1-4: ESC signal output for each ESC
8 pin ESC connector 2:
•VCC: Battery voltage out to supply FC power
•GND
•TLM/Onewire: ESC Telemetry signal to FC or Onewire signal pin (depending on
configuration)
•ESC signal 5-8: ESC signal output for each ESC (outputs ESC signal 1-4 if UAV type is
configured as BI, TRI, QUAD)
Page 8
Receiver connector:
•GND
•5V
•TLM: Telemetry signal to receiver (see page 10 receiver connection diagram for further
information)
•Signal: Receiver signal to FC (see page 10 receiver connection diagram for further
information)
6 pin connector (SER1):
•RX1: function configurable in GUI
•TX1: function configurable in GUI
•3,3V
•VCC: Battery voltage
•5V
•GND
Acronym explanation:
•BEC 5V/16V: switchable voltage (in GUI) and real Pit capable
•GND: Reference Signal Ground
•Onboard OSD Jumper: bridge to deactivate onboard OSD and to activate RX4 and TX4
•Real Pit VCC: real Pit capable VCC pin
•Reset: Reset button to force the FC in bootloader mode, not needed for normal operation
•SIG.: receiver signal (serial)
•TLM: Telemetry signal output for receiver (Serial)
•TLM / Onewire: ESC telemetry input or Onewire signal depending on configuration
•VCC: Battery input voltage (6V-27V)
•VCS: Video control signal (smart audio/tramp)
•VID. in: Analog video signal to OSD
•VID. out: Analog video signal from OSD
Page 9
ESC connection diagram
ESC connection via 8 pin connector
For easy ESC connection via 8 pin cable
FETtec FC G4 v1.7 to FETtec 4in1 ESC 45A (same for FETtec 4in1 ESC 35A), cable included
with FETtec ESCs.
Any other ESC is usable (please make sure the signal pinout is correct, otherwise change
accordingly
Page 10
Single ESC connection diagram
The FETtec FC G4 v1.7 provides 4 ESC signal pads for solder connection of single ESCs
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