Product Details
Packed with features, the H7A3-Slim from Matek is ready to go. Compatible with INAV, Betaflight, and ArduPilot.
Check out all our 30x30mm Flight Controllers and the rest of our Matek Products!
Specifications:
- MCU: STM32H7A3RIT6, 280MHz Cortex-M7, 1.4MB RAM, 2MB Flash
- IMU: ICM42688P
- Baro: SPL06-001
- OSD: AT7456E
- Blackbox: 128MB Flash (1G-bit NAND)
- 6x Uarts (1,2,3,4, 5, 6) with built-in inversion.
- 11x PWM outputs
- 1x I2C
- 1x CAN
- 4x ADC (VBAT, Current, VB2, Cur2)
- 3x LEDs for FC STATUS (Blue, Red) and 3.3V indicator(Red)
- USB Type-C(USB2.0)
- 8x PWM outputs on 2x JST-SH1.0_8pin connector for 2x 4in1 ESC
- 1x JST-GH1.25_4pin connector (5V/CAN-H/CAN-L/G)
- 9V output ON/OFF switchable
- Digital video OSD is supported by any spare UART
Power
- Vbat Input: 6~36V (2~8S LiPo)
- BEC: 5V 2A cont. (Max.3A)
- BEC: 9V 2A cont. (Max.3A)
- LDO 3.3V: Max.200mA
- No Current Sensor built-in
- ADC VB2 pad supports Max. 69V (voltage divider: 1K:20K)
FC Firmware
- ArduPilot: MATEKH7A3 (4.6 or newer)
- ArduPlane https://firmware.ardupilot.org/Plane/latest/MatekH7A3/
- ArduCopter https://firmware.ardupilot.org/Copter/latest/MatekH7A3/
- Flashing with STM32CubeProgrammer
Physical
- Mounting: 30.5 x 30.5mm, Φ4mm with Grommets Φ3mm
- Dimensions: 36 x 36 x 5 mm
- Weight: 7g
- 3D step H7A3-SLIM_step.zip
ArduPilot Mapping:
RC INPUT
RC input is configured on the USART2(SERIAL2). It supports all serial RC protocols. SERIAL2_PROTOCOL=23 by default.
- PPM is not supported.
- CRSF requires Tx2 & Rx2 connection, and set SERIAL2_OPTIONS to “0” (default).
- SBUS/DSM/SRXL connects to the Rx2 pin, but SBUS requires that the SERIAL2_OPTIONS be set to “3”.
- FPort requires connection to Tx2, and set SERIAL2_OPTIONS to “7”. If Telemetry doesn’t work, try set SERIAL7_OPTIONS = 135.
- SRXL2 requires a connection to Tx2, and automatically provides telemetry. Set SERIAL2_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(PINIO)
- 9V output ON by default
- PC13 PINIO1 OUTPUT GPIO(81) //9V power switche.g.
- RELAY_PIN 81 // PINIO1 GPIO
- RC7_OPTION 28 //Relay On/Off, Use CH7 of Transmitter to set 9V ON/OFF
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.
Package Includes:
- 1 x H7A3-SLIM
- 6 x Silicon grommets M4 to M3
- 2 x JST-SH1.0_8pin cable, 5cm, & 8pin connectors
- 1 x JST-GH-4P to JST-GH-4P cable for CAN port, 20cm
