Matek H7A3-SLIM Flight Controller STM32H7A3 ArduPilot
Manufacturer Code: H7A3-SLIM
MCU: STM32H7A3RIT6, 280MHz Cortex-M7, 1.4MB RAM, 2MB Flash
IMU: ICM42688P
Barometer: SPL06-001
OSD: AT7456E
Blackbox: 128MB Flash (1G-bit NAND)
UARTs: 6 (1, 2, 3, 4, 5, 6) with built-in inversion
PWM outputs: 11
I2C: 1
CAN: 1 (JST-GH 4-pin: 5V/CAN-H/CAN-L/G)
ADC: 4 (VBAT, Current, VB2, Cur2)
USB: Type-C (USB2.0)
Vbat input: 6-36V (2-8S LiPo)
BEC: 5V 2A continuous (3A max)
BEC: 9V 2A continuous (3A max), ON/OFF switchable
LDO 3.3V: 200mA max
Current sensor: none built in
ADC VB2 pad: 69V max (voltage divider 1K:20K)
Firmware: ArduPilot MATEKH7A3 (4.6 or newer)
Mounting: 30.5 x 30.5mm, D4mm with D3mm grommets
Dimensions: 36 x 36 x 5mm
Weight: 7g


No current sensor built in.