MATEKSYS F405-VTOL Flight Controller Owner’s Manual

MATEKSYS F405-VTOL Flight Controller

LAYOUT

• AirS: Analog Airspeed sensor (0~3.3V) no voltage divider built-in
  Rssi: Analog RSSI ADC, 0~3.3V

• Tx1/Rx1: UART1_Tx/Rx

• swd/swc: STM32F405RGT6 debug pin

• Rx2: UART2-RX for Serial_RX by default

  • PPM is not supported by INAV

• Tx2: UART2-TX

  • softserial1_tx is an alternative on Tx2 pad in INAV

• Sbus: UART2_RX + inverter for SBUS receiver

• Tx3/Rx3: UART3_Tx/Rx

• Tx5/Rx5: UART5_Tx/Rx

• DA & CL: I2C_SDA, SCL,

  • for compass/digital Airspeed

• 5V: onboard BEC 5V 2A cont.

  • 5V is not supplied by USB

• 4V5: 4.4~4.8V, Max.800mA,

  • 4V5 is also supplied when connecting via USB.

• G: Ground

DO NOT connect the ESC BEC output (Red wire in the middle of connector) to Vx pad If Vx rail is powered from bottom PDB.

• TX6/RX6: UART6_Tx/Rx
• TX4/RX4: UART4_Tx/Rx
• Vbat: Battery voltage
• onboard battery voltage sense: BATT_VOLT_PIN 14, BATT_VOLT_MULT 21 INAV scale 2100
• Curr: Current signal (0~3.3V)
• onboard current sense: BATT_CURR_PIN 15, BATT_AMP_PERVLT 66.7 INAV scale 150
• 9V: onboard BEC 5V 2A cont. Max.3A
  • 9V will increase to 12V if “12V” jumper on bottom PDB is bridged.
• 5V: onboard BEC 5V 2A cont. Max.3A
• G: Ground
• VTx: Video OUT for Video Transmitter
• C1: Camera-1 video IN (Default)
• C2: Camera-2 video IN
  • C1/C2 can be switched via ArduPilot Relay or Modes/USER2 (INAV)
  • Two cameras should be set with identical video format, both PAL or both NTSC
• PIO1: Low/High level switchable via INAV Modes/USER1 or ArduPilot Relay

• DFU Button: F405 DFU mode, same function as the button on FC board.
• Connect USB to the PC While holding the boot button in.
• Red LED, USB power indicator

• Top FC board: 44x29mm, Holes: 25mm-Φ2mm
• Bottom PDB: 45x42mm, Holes: 25mm-Φ2mm, 35mm-Φ4mm
• Weight: 25g w/ USB externder

Multirotor ESC

Wiring

ArduPlane fw: MATEKF405-TE

INAV fw: MATEKF405TE_SD

• INAV doesn’t support VTOL, F405-VTOL can be used as a normal fixed-wing flight controller

• DJI FPV OSD can work with any spare UART_TX & RX

I/O Mapping

ArduPilot

PWM

5V tolerant I/O

| S1| PWM1 GPIO50| TIM8_CH4| DMA/DShot| ****

Group1

S2| PWM2 GPIO51| TIM8_CH3| DMA/DShot
S3| PWM3 GPIO52| TIM1_CH3N| DMA/DShot| Group2
S4| PWM4 GPIO53| TIM1_CH1| DMA/DShot
S5| PWM5 GPIO54| TIM2_CH4| DMA/DShot| ****

Gourp3

S6| PWM6 GPIO55| TIM2_CH3| DMA/DShot
S7| PWM7 GPIO56| TIM2_CH2| DMA/DShot
S8| PWM8 GPIO57| TIM2_CH1| DMA/DShot
S9| PWM9 GPIO58| TIM12_CH1| NO DMA| Gourp4
S10| PWM10 GPIO59| TIM13_CH1| NO DMA| Gourp5
S11| PWM11 GPIO60| TIM4_CH1| NO DMA| Gourp6
LED pad| PWM12 GPIO61| TIM3_CH4| DMA/DShot| Gourp7
SERVO12_FUNCTION 120, NTF_LED_TYPES neopixel
Mixing Dshot and normal PWM operation for outputs is restricted into groups, ie. enabling Dshot for an output in a group requires that ALL outputs in that group be configured and used as Dshot, rather than PWM outputs.

If servo and motor are mixed in same group, make sure this group run lowest PWM frequency according to the servo specification. ie. Servo

supports Max. 50Hz, ESC must run at 50Hz in this group.

ADC

| Vbat Pad| 1K:20K divider builtin 0~30V| Vbat ADC onboard battery voltage| BATT_VOLT_PIN BATT_VOLT_MULT| 14

21.0

Curr pad| 0~3.3V| current sensor ADC

onboard current sense

| BATT_CURR_PIN

BATT_AMP_PERVLT

| 15

66.7

RSSI Pad| 0~3.3V| RSSI ADC

Analog RSSI

| RSSI_ANA_PIN RSSI_TYPE| 8

2

AirS /PC0 Pad| no divider builtin

0~3.3V

| AirS ADC

Analog Airspeed

| ARSPD_PIN

ARSPD_TYPE

| 10

2

I2C

| ****

I2C1

| ****

5V tolerant I/O

| Compass| COMPASS_AUTODEC| 1
onboard Baro SPL06-001| Address| 0x76
Digital Airspeed I2C MS4525

DLVR-L10D

| ARSPD_BUS ARSPD_TYPE ARSPD_TYPE| 1

1

9

UART

5V tolerant I/O

| USB| USB|  | console| SERIAL0
TX1 RX1| USART1| with DMA| telem1| SERIAL1
TX3 RX3| USART3| NO DMA| telem2| SERIAL2
TX5 RX5| UART5| NO DMA| GPS1| SERIAL3
TX4 RX4| UART4| NO DMA| GPS2/DJI OSD| SERIAL4
TX6 RX6| USART6| TX6 with DMA| USER| SERIAL5

TX2 RX2 SBUS

| USART2| with DMA| RC input/Receiver| ****

SERIAL6

RX2| IBUS/DSM/PPM| BRD_ALT_CONFIG 0

Default

Sbus pad| SBUS
TX2 & RX2| CRSF| BRD_ALT_CONFIG 1

SERIAL6_PROTOCOL 23

| SERIAL6_OPTIONS 0
TX2| uninverted FPort (hacked)| SERIAL6_OPTIONS 4
TX2| SRXL2| SERIAL6_OPTIONS 4

PWM

| S1| 5 V tolerant I/O| TIM8_CH4| Motor| Motor
S2| 5 V tolerant I/O| TIM8_CH3| Motor| Motor
S3| 5 V tolerant I/O| TIM1_CH3N| Motor| Servo
S4| 5 V tolerant I/O| TIM1_CH1| Motor| Servo
S5| 5 V tolerant I/O| TIM2_CH4| Motor| Servo
S6| 5 V tolerant I/O| TIM2_CH3| Motor| Servo
S7| 5 V tolerant I/O| TIM2_CH2| Motor| Servo
S8| 5 V tolerant I/O| TIM2_CH1| Motor| Servo
S9| 5 V tolerant I/O| TIM12_CH1| Servo| Servo
S10| 5 V tolerant I/O| TIM13_CH1| Servo| Servo
S11| 5 V tolerant I/O| TIM4_CH1| Servo| Servo
LED| 5 V tolerant I/O| TIM3_CH4| 2812LED| 2812LED

ADC

| Vbat Pad| 1K:20K divider builtin 0~30V| Vbat ADC ADC_CHANNEL_1| BF scale 210, INAV scale 2100
Curr pad| 0~3.3V| Current ADC

ADC_CHANNEL_2

| scale 150
RSSI Pad| 0~3.3V| RSSI ADC ADC_CHANNEL_3| Analog RSSI
AirS /PC0 Pad| no divider builtin

0~3.3V

| AirS ADC

ADC_CHANNEL_4

| Analog Airspeed

I2C

| ****

I2C1

| ****

5V tolerant I/O

| ****

Compass

| ****

QMC5883 / HMC5883 / MAG3110 / LIS3MDL

OLED| 0.96″
onboard Barometer| SPL06-001
Digital Airspeed sensor| MS4525
Temperature sensor|

UART

5V tolerant I/O

| USB|  | USB|
TX1 RX1| ****

5V tolerant I/O

| UART1| USER
TX3 RX3| UART3| USER
TX4 RX4| UART4| USER
TX5 RX5| UART5| USER
TX6 RX6| UART6| USER

TX2 RX2 SBUS

| ****

5V tolerant I/O

| UART2| RC input/Receiver
Sbus pad| for SBUS receiver, Sbus pad = RX2+inverter
RX2 pad| IBUS/DSM
TX2 & RX2| CRSF
TX2 pad| SmartPort Telemetry| enable Softserial_Tx1
TX2 pad| uninverted FPort (hacked)
TX2 pad| SRXL2

www.mateksys.com

References

• Matek Systems – Advanced Drone Systems

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