Stack SKYSTARS H743 ICM42688 Single Gyro KM80 80A FC&ESC

SKYSTARS H743 ICM42688 Single Gyro 80A is a 30×30 stack for larger builds: an H743 HD flight controller on the STM32H743 with an ICM-42688-P gyro, paired with the KM80 80 A 4-in-1 ESC running AM32. The ESC is rated for 3–8S LiPo; the FC has 8 motor outputs, 8 UARTs, a barometer, OSD, 16 MB blackbox and a 10 V / 3 A BEC for the video transmitter.

Features

• ICM-42688-P gyro: Betaflight samples it at 8 kHz versus 3.2 kHz for the BMI270. That is the main difference from the BMI270 version; the rest of the FC is the same.
• STM32H743 runs Betaflight, INAV and ArduPilot — suitable for quads, GPS navigation builds and wings.
• 8 motor outputs and 8 UARTs: receiver, GPS, VTX and telemetry at the same time.
• 10 V / 3 A BEC for the VTX and 5 V / 3 A for peripherals.
• DJI 6-pin connector for DJI, Vista and Walksnail without soldering; AT7456E OSD for analog video.
• KM80 ESC: 80 A continuous per channel, burst 90 A × 4 (up to 10 s).
• TVS diode and two 50 V 1000 µF low-ESR capacitors on the ESC.
• FC and ESC connect with an 8-pin harness; current sensor on the ESC.

Specifications

H743 HD flight controller

• MCU: STM32H743
• Gyro: ICM-42688-P (single)
• Barometer: BMP280
• OSD: AT7456E
• Blackbox: 16 MB
• Motor outputs: 8
• UARTs: 8
• LED strip outputs: 4
• Buzzer: yes
• BEC outputs: 3.3 V / 0.5 A, 5 V / 3 A, 10 V / 3 A
• Receiver protocols: ELRS, CRSF, S.BUS, FrSky, Futaba, FlySky, TBS Crossfire, DSMX
• USB: Type-C
• Digital video: DJI, Vista, Walksnail
• Solderless connectors: ESC 8-pin, DJI 6-pin
• Dimensions: 39.4×39.4 mm
• Mounting: 30.5×30.5 mm, M4
• Weight: 9 g
• Firmware: Betaflight / INAV / ArduPilot
• Betaflight target: SKYSTARSH7HD (factory 4.5.0)

KM80 4-in-1 ESC

• Continuous current: 80 A × 4
• Burst current: 90 A × 4 (up to 10 s)
• Input voltage: 3–8S LiPo
• Firmware: AM32
• MCU: STM32G071
• MOSFETs: 009A04
• Protocols: DShot300 / DShot600 / PWM, bidirectional DShot
• Current sensor: yes (scale 80)
• Power output: VBAT
• TVS protection: yes
• Capacitors: 2 × 50 V 1000 µF low ESR
• Dimensions: 45.6×45 mm
• Mounting: 30.5×30.5 mm, M4
• Weight: 44.4 g

Compatibility

• Mounting: both boards are 30.5×30.5 mm with M4 holes. The ESC is the larger board (45.6×45 mm) — check your frame's stack space against it.
• ESC firmware is AM32 — not BLHeli_32 and not BLHeli_S. Configure it with the AM32 configurator. Bidirectional DShot is supported, so the Betaflight RPM filter works out of the box.
• Protocols: DShot300, DShot600, PWM; bidirectional DShot.
• Receivers: ELRS, CRSF, S.BUS, FrSky, Futaba, FlySky, TBS Crossfire, DSMX.
• Video: DJI (incl. Vista) and Walksnail via the DJI 6-pin connector; analog via AT7456E OSD and the 10 V BEC.
• FC firmware: Betaflight, INAV, ArduPilot. Betaflight target: SKYSTARSH7HD.