Holybro Kakute H7

The Holybro Kakute H7 V1.5 is a 35 × 35mm UAV flight controller combining an STM32H743 processor, ICM-42688-P IMU, barometer and OSD. Dual 4in1 ESC connectors support x8 integration, while HD video, UART and MicroSD connections serve onboard equipment. It accepts 3S - 8S power and comes in configurations with or without Bluetooth.

HolybroDrone flight controller

Weight: 8 g
Dimensions: 35 × 35 mm

Product overview

The Holybro Kakute H7 V1.5 is a compact flight controller for integrating UAV control, motor connections, video equipment and peripherals. Its STM32H743 processor runs at 480 MHz, alongside an ICM-42688-P IMU, SPA06 barometer and AT7456E OSD chip. The board measures 35 × 35mm and weighs 8g, with a 30.5 × 30.5mm mounting pattern, Φ4mm holes and Φ3mm grommets. Underfill epoxy provides mechanical reinforcement. This is a controller component supplied with mounting accessories and cables, rather than a complete flight platform or airframe kit.

Two JST-SH1.0 8-pin ESC connectors support dual 4in1 ESC integration, including x8 octocopter configurations. Nine PWM outputs comprise eight motor outputs and one LED output. Six UARTs with built-in inversion provide peripheral connections, although UART2 serves Bluetooth telemetry. A six-pin VTX port and onboard 9V regulator accommodate HD video equipment such as Caddx Vista and Air Unit, with analog VTX support also provided. Integration provisions include USB Type-C, LED and buzzer pads, I2C pads for external GPS/magnetometers, and a MicroSD slot for Blackbox logging.

Power input is 3S - 8S, with continuous BEC outputs of 5V at 2A and 9V at 3A. The Bluetooth-equipped configuration supports wireless Betaflight setup through the SpeedyBee iOS or Android app; Bluetooth switches off when armed and returns when disarmed. SKU 11091C omits Bluetooth. Firmware targets cover Betaflight v4.5.2 onward, INAV 4.0.0 onward, ArduPilot 4.2.0 onward and PX4 v1.13 onward; INAV SD card support begins at 4.1.0. The package includes the V1.5 controller, four M3 silicone grommets, two ESC cables and designated video-system cables.

Flight control & navigation

Specifications

Specification	Value & conditions
Manufacturer, model and hardware version	Holybro Kakute H7 V1.5 flight controller
Processor	STM32H743 32-bit processor running at 480 MHz
Mechanical reinforcement	Underfill epoxy for mechanical reinforcement
IMU	ICM-42688-PV1.5 configuration.
Barometer	SPA06Current hardware configuration.
OSD chip	AT7456E
Bluetooth and mobile application	ESP32-C3 onboard Bluetooth; SpeedyBee iOS and Android app compatibleBluetooth-equipped configuration.
Bluetooth arming behavior	Bluetooth automatically turns off when armed and turns on when disarmed.Bluetooth-equipped configuration running Betaflight.
Configuration without Bluetooth	11091C does not come with BluetoothSKU 11091C.
UART interfaces	6 dedicated UART ports with built-in inversion; UARTs 1, 2, 3, 4, 6 and 7UART2 is used for Bluetooth telemetry.
PWM outputs	9 PWM outputs: 8 motor outputs and 1 LED output
ESC connectors	2 × JST-SH1.0 8-pin ESC portsFor 4in1 ESCs; x8/Octocopter compatible.
VTX connector	1 × JST-SH1.0 6-pin VTX portFor HD systems such as Caddx Vista and Air Unit.
Battery input voltage	3S - 8S
5V BEC	5V, 2A continuousContinuous output.
9V BEC	9V, 3A continuousContinuous output.
USB connector	USB Type-C
Mounting	30.5 × 30.5mm mounting pattern; Φ4mm holes with Φ3mm grommetsWith Φ3mm grommets.
Dimensions	35 × 35mm
Weight	8g
Betaflight firmware target	KakuteH7 (v4.5.2 & newer)
INAV firmware target	KakuteH7 (4.0.0 & newer)SD card support added in 4.1.0.
ArduPilot firmware target	KakuteH7 (4.2.0 & newer)
PX4 firmware target	KakuteH7 (PX4 v1.13 or newer)
Blackbox storage	Full MicroSD card slot for Blackbox data logging
Video system integration	Plug-and-play HD video connection for transmitters such as DJI/Caddx FPV Air Unit and Caddx Vista; analog VTX systems also supportedOnboard 9V regulator powers the HD video transmitter.
Peripheral pads	LED and buzzer pads; I2C pads with SDA and SCL for external GPS/magnetometers
OSD display information	Displays battery voltage, flight time, warnings, RSSI and smart audio featuresIntegrated Betaflight OSD with an FPV display.
Controller and mounting accessories	1 × Kakute H7 V1.5 flight controller; 4 × M3 silicone grommetsSupplied package.
Included cables	2 × JST-SH1.0 8-pin 150mm ESC cables; 1 × JST-SH1.0 6-pin to GHR 10-pin 80mm & 150mm DJI Air Unit cable; 1 × JST-SH1.0 6-pin colored silicone 150mm cable for Caddx HD systems and other VTXSupplied package; cables designated for ESCs, DJI Air Unit, and Caddx HD systems or other VTX.