HPXGRC H743 Flight Controller with Dual Gyro, Barometer & 16MB Flash

The HPXGRC H743 is a 30.5 × 30.5 mm flight controller built on the STM32H743 processor, with dual ICM42688P gyros, an onboard barometer and 16 MB of blackbox flash. Rated for 3–12S, it suits stack-mounted freestyle and long-range quads on Betaflight as well as larger ArduPilot multirotors that need plenty of serial ports for GPS, receiver, telemetry and a digital video link.

Key features

• 8 UARTs, enough for GPS, receiver, telemetry radio and VTX control without soft-serial workarounds

• 6-pin direct socket takes DJI O3, RunCam Link, Caddx Vista and DJI Air Unit V1 cables with no rewiring; solder pads are provided as well

• AT7456E OSD chip for analog FPV setups

• Current-meter support, buzzer pads for a 5 V active buzzer, an RSSI pad and a BOOT button for DFU recovery

• Ships with Betaflight and also runs ArduPilot, using the DAKEFPVH743 firmware target

Specifications

• MCU: STM32H743

• Gyro: dual ICM42688P

• Barometer: built-in

• OSD: AT7456E

• Blackbox: 16 MB flash

• Input voltage: 3S–12S LiPo

• UARTs: 8

• USB: Type-C

• Firmware: Betaflight (factory), ArduPilot; target DAKEFPVH743

• Mounting: 30.5 × 30.5 mm, 4 mm holes

• Size: 36 × 36 × 8 mm

• Weight: 8 g

The board has no Bluetooth, Wi-Fi or SmartPort/F.Port support, so configure it over USB-C and use a serial receiver protocol such as CRSF or SBUS.