Opis
V3, IMU ICM42688P, ICM42605
FC Specifications
- MCU: STM32H743VIH6, 480MHz , 1MB RAM, 2MB Flash
- Board V1.0 IMU: MPU6000 (SPI1) & ICM20602 (SPI4)
- Board V1.5 IMU: MPU6000 (SPI1) & ICM42605 (SPI4)
- Board V3 IMU: ICM42688P & ICM42605
- Baro: Infineon DPS310 (I2C2)
- OSD: AT7456E (SPI2)
- Blackbox: MicroSD card socket (SDIO)
- 7x Uarts (1,2,3,4,6,7,8) with built-in inversion.
- 13x PWM outputs(including “LED” pad)
- 2x I2C
- 1x CAN
- 6x ADC (VBAT, Current, RSSI, Analog AirSpeed, Vbat2, Cur2)
- 3x LEDs for FC STATUS (Blue, Red) and 3.3V indicator(Red)
- 1x SPI3 breakout
- USB Type-C(USB2.0)
- 1x JST-SH1.0_8pin connector (Vbat/G/Curr/Rx8/S1/S2/S3/S4)
- 1x JST-GH1.25_4pin connector (5V/CAN-H/CAN-L/G)
- Dual Camera Inputs switch
- 5V/Vbat filtered power ON/OFF switch
- DJI FPV OSD is supported by any spare UART
Power
- Vbat Input: 6~36V (2~8S LiPo)
- BEC: 5V 2A cont. (Max.3A)
- LDO 3.3V: Max.200mA
- No Current Sensor built-in
- ADC Vbat2 pad supports Max. 69V (voltage divider: 1K:20K)
- Static power: 200mA@5V with Betaflight, 150mA@5V with ArduPilot
FC Firmware
- ArduPilot(ChiBiOS): MATEKH743
- BetaFlight: MATEKH743
- INAV: MATEKH743
Physical
- Mounting: 30.5 x 30.5mm, Φ4mm with Grommets Φ3mm
- Dimensions: 36 x 36 x 5 mm
- Weight: 7g
Including
- 1x H743-SLIM
- 6x Silicon grommets M4 to M3
- 1x JST-SH1.0_8pin cable, 5cm
- 2x JST-SH1.0_8pin connectors
- 1x JST-GH-4P to JST-GH-4P cable for CAN port, 20cm
Ardupilot Mapping
RC INPUT
The Rx6 pin, which by default is mapped to a timer input, can be used for all ArduPilot supported receiver protocols, except CRSF which requires a true UART connection. However, bi-directional protocols which include telemetry, such as SRXL2 and FPort, when connected in this manner, will only provide RC without telemetry.
To allow CRSF and embedded telemetry available in Fport, CRSF, and SRXL2 receivers, the Rx6 pin can also be configured to be used as true UART RX pin for use with bi-directional systems by setting the BRD_ALT_CONFIG to “1” so it becomes the SERIAL7 port’s RX input pin.
With this option, SERIAL7_PROTOCOL must be set to “23”, and:
- PPM is not supported.
- SBUS/DSM/SRXL connects to the Rx6 pin, but SBUS requires that the SERIAL7_OPTIONS be set to “3”.
- FPort requires connection to Tx6 and SERIAL7_OPTIONS be set to “7”. If Telemetry doesn’t work, try set SERIAL7_OPTIONS = 135.
- CRSF also requires a Tx6 connection, in addition to Rx6, and automatically provides telemetry. Set SERIAL7_OPTIONS to “0”.
- SRXL2 requires a connection to Tx6 and automatically provides telemetry. Set SERIAL7_OPTIONS to “4”.
Any UART can be used for RC system connections in ArduPilot also, and is compatible with all protocols except PPM. See Radio Control Systems for details.
Ardupilot Relay
- Camera-1 and Vsw On by default
- Make sure 2 cameras are set with identical video format, both PAL or both NTSC.
# GPIOs
- PD10 PINIO1 OUTPUT GPIO(81) //Vsw pad power switch
- PD11 PINIO2 OUTPUT GPIO(82) //Camera switch
# RCx_OPTION: RC input option
- 28 Relay On/Off
- 34 Relay2 On/Off
- 35 Relay3 On/Off
- 36 Relay4 On/Off
e.g.
- RELAY_PIN 81 //Vsw GPIO
- RC7_OPTION 28 //Relay On/Off, Use CH7 of Transmitter to switch Vsw
- RELAY_PIN2 82 //Camera switch GPIO
- RC8_OPTION 34 //Relay2 On/Off, Use CH8 of Transmitter to switch camera
or
- RELAY_PIN3 81 //Vsw GPIO
- RC9_OPTION 35 //Relay3 On/Off, Use CH9 of Transmitter to switch Vsw
- RELAY_PIN4 82 //Camera switch GPIO
- RC10_OPTION 36 //Relay4 On/Off, Use CH10 of Transmitter to switch camera
The configured feature will be triggered when the auxiliary switch’s pwm value becomes higher than 1800. It will be deactivated when the value falls below 1200.
Check the pwm value sent from the transmitter when the switch is high and low using the Mission Planner’s Initial Setup >> Mandatory Hardware >> Radio Calibration screen. If it does not climb higher than 1800 or lower than 1200, it is best to adjust the servo end points in the transmitter.
BF Mapping
