Holybro F722 Kakute Flight Controller User Manual
- June 1, 2024
- Holybro
Table of Contents
Kakute F722 Manual
Overview
- High-performance STM32 F722 MCU with speeds up to 216MHz.
- ICM42688P gyroscope, independent low-noise power supply.
- Various Ports for quick & easy setup: ESC port, Digital VTX port, Analog VTX port, Receiver port, and LED port.
- Built-in analog video OSD, 16 Mbytes black box,
- High power synchronous rectifier BEC, supports up to 8S input and provides stable 9V/3A & 5V/2A output.
Specifications
-
MCU: STM32F722 32-bit processor,216MHz, 256Kbytes RAM, 512Kbytes Flash
-
IMU: ICM42688-P (SPI)
-
Barometer: BMP280
-
OSD – AT7456E
-
5x hardware UARTS (UART1,2,3,4,6)
-
7x PWM Outputs (6 Motor Output, 1 LED)
-
Onboard 16 Mbytes for Blackbox logging
-
Battery input voltage: 3S – 8S
-
BEC: 9V/3A, 5V/2A, 3.3V/0.2A
-
Connector
o 2x JST-SH 8pin port for ESC
o 1x JST-SH 6pin port for HD VTX
o 2x JST-SH 4pin port for Receiver & Analog Camera
o 1x JST-SH 3pin port for LED -
USB Type -C
-
Dimensions: 35x35mm
-
Mounting Holes: Standard 30.5 x 30.5
-
Weight: 8g
-
Target
o Betaflight Target: KAKUTEF7MINIV3
o INAV Target: KAKUTEF7MINIV3
Pinout Diagram
Top of board
TOP
BOTTOM
| Pin | Function |
|---|---|
| 9v | 9v output (2.0A max) |
| 5v | 5v output (2.0A max) |
| Vo | Video output to video transmitter |
| Vin | Video input from FPV camera |
| G | Ground |
| SDA, SCL | I2 C connection (for peripherals) |
| R1, T1 | UART1 RX and TX |
| R2, T2 | UART2 RX and TX |
| R3, T3 | UART3 RX and TX |
| R4, T4 | UART4 RX and TX |
| R6, T6 | UART6 RX and TX |
| LED | WS2812 addressable LED signal wire |
| Bz- | Piezo buzzer negative leg |
| Bz+ | Connect buzzer positive leg to 5v pad |
| 3V3 | 3.3v output (200 mA max) |
| M1-M6 | Motor signal outputs |
| Rsi | Analog RSSI (0-3.3v) input from receiver |
| B+ | Battery positive voltage (2S-8S) |
| Curr | Current Sensor Input |
| Boot | Bootloader button |
| CAM | Camera Control |
Connect the B+ wire in the plug header to a battery voltage source, such as the battery + pad on your PDB or 4-in-1 ESC. Your PDB or 4-in-1 ESC may have another vBat pad that is specifically designed for powering an accessory like the Kakute F722. It’s simpler to use a dedicated pad or wire, rather than soldering to the main battery + pad.
Connect the G wire in the plug header to a Ground source, such as the battery pad on your PDB or 4ni-1 ESC.
- Pin8→Pin1
| Pin8 | Battery positive voltage (2S-8S) |
|---|---|
| Pin7 | R4 (for ESC telemetry) |
| Pin6 | Ground |
| Pin5 | Current Sensor Input |
| Pin4 | M1 |
| Pin3 | M2 |
| Pin2 | M3 |
| Pin1 | M4 |
This port is used for external digital image transmission equipment.
- Pin1→Pin6
| Pin1 | 9V power out (3A) |
|---|---|
| Pin2 | Ground |
| Pin3 | T1 |
| Pin4 | R1 |
| Pin5 | Ground |
| Pin6 | R6 |
Analog Camera Connector
- Pin4→Pin1
| Pin4 | Camera Control pin |
|---|---|
| Pin3 | Video input from FPV camera |
| Pin2 | GND |
| Pin1 | Camera 5v power supply |
UART2 Connector Receiver
- Pin1→Pin4
| Pin1 | GND |
|---|---|
| Pin2 | Receiver 5v power supply |
| Pin3 | UART2 RX |
| Pin4 | UART2 TX |
LED Connector
- Pin1→Pin3
| Pin1 | GND |
|---|---|
| Pin2 | LED 5v power supply |
| Pin3 | WS2812 addressable LED signal wire |
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