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Holybro Kakute H7 V2
by Holybro
Community
Closed Hardware
Kakute H7 V2 relies on external compass modules because the onboard IMU lacks a magnetometer.
Key Specifications
Mounting Pattern
Custom
Connectivity
6 UARTs ā¢ 1 IĀ²C
Power
6ā33.6 V ā¢ Battery
Onboard Sensors
1Ć IMU ā¢ 1Ć Barometer
Firmware Support
Detailed Specifications
Core Specifications
Quick reference for the primary hardware capabilities.
| MCU | Mounting | Custom | |
| Power | 6ā33.6 V ā¢ Battery | I/O Overview | 6 UARTs ā¢ 1 IĀ²C |
| PWM & Storage | 9 PWM outputs ā¢ no microSD slot | Sensors | 1Ć IMU ā¢ 1Ć Barometer |
Hardware Overview
Core MCU, mounting, and mechanical data.
Base hardware specification
Default
| MCU | Mounting | Custom |
Power Supply
Input rails, regulators, and redundancy.
Voltage ā
Inputs 1
Redundancy ā
Power Inputs
BATTERY Battery
Voltage:
6ā33.6 V
2S-8S LiPo main input, USB 5V
| Input Voltage | ā | Redundancy | ā |
Includes 9V/1.5A BEC for HD video systems and supports external current monitoring.
Connectivity & I/O
Port availability, buses, and expansion options.
| UARTs | 6 | CAN Bus | 0 |
| PWM Outputs | 9 | SD Card | ā No |
| Ethernet | ā No | ||
Peripheral Ports
| Port | Type | Default Function | Voltage / Level | Connector | Notes |
|---|---|---|---|---|---|
| UART1 | UART | GPS receiver | 3.3 V signal / 5 V accessory pad | JST-GH pigtail or solder pads | Default GNSS connection with inverted RX for SBUS compatibility when repurposed. |
| UART2 | UART | MAVLink telemetry | 3.3 V signal / 5 V accessory pad | JST-GH pigtail or solder pads | Full-duplex UART commonly wired to telemetry radios or USB serial bridges. |
| UART3 | UART | HD video / MSP control | 3.3 V signal | JST-GH pigtail or solder pads | Routed alongside SmartAudio/MSP pads for digital VTX control. |
| UART4 | UART | ESC telemetry or second GPS | 3.3 V signal | JST-GH pigtail or solder pads | Breaks out TX/RX near the motor header for bidirectional ESC telemetry wiring. |
| UART5 | UART | Serial RC input (CRSF/FPort) | 3.3 V signal | JST-SH receiver lead | Hardware-inverted UART dedicated to Crossfire, ExpressLRS, or FPort receivers. |
| UART6 | UART | Companion link or scripting bus | 3.3 V signal | Solder pads | Aux UART exposed on pads for debugging, scripting, or secondary telemetry devices. |
| I2C | I2C | Compass / external sensors | 3.3 V | JST-GH 4-pin | Provides SDA/SCL with 3.3 V reference for magnetometers or digital peripherals. |
| RCIN | RC | Serial receiver input | 3.3 V signal / 5 V supply | JST-SH and solder pads | Supports SBUS, CRSF, DSM, and FPort via dedicated pads with selectable inversion. |
| Motor outputs (M1-M9) | PWM | DShot or PWM motor signals | 5 V signal reference | 9-pin motor header | Nine motor outputs supporting DShot600+ with soft-mounted gyro timing. |
| 5V BEC | Power | Regulated 5 V peripheral rail | 5 V @ 2 A | 5 V solder pads | Powers receivers, telemetry radios, and small peripherals from onboard regulator. |
| 9V BEC | Power | HD video system supply | 9 V @ 1.5 A | JST-GH 6-pin VTX harness | Switchable regulator for digital video transmitters via USB-C configuration. |
| BAT pads | Power | Direct LiPo input | 2S-8S LiPo | XT60 / solder pads | Main battery pads feeding onboard regulators and ESC power distribution. |
| USB-C | USB | Configuration and flashing | 5 V | USB Type-C | Provides Betaflight/ArduPilot console access and VTX power switching control. |
| VTX harness | Other | Video transmitter control and power | 9 V supply / 5 V logic | JST-GH 6-pin | Carries video, SmartAudio/MSP control, and power for HD systems. |
| Onboard flash | Other | High-speed data logging | 3.3 V | Internal 128 MB NOR flash | Accessible via firmware for blackbox logging when microSD is absent. |
Onboard Sensors
IMU, barometer, and magnetometer load-outs per revision.
| IMU | |||
| Barometer | |||
Additional Features
Value-add capabilities bundled with the controller.
- ā 128 MB onboard flash logging
- ā Hardware-inverted UART support on every port
- ā Switchable VTX power with USB-C connectivity
Known Issues & Advisories
No documented issues for Base Hardware
Sensor advisories and controller errata for this revision will appear here once reported.
Documentation & Vendor Resources
Contributors: Jairus
Last updated:
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