Skystars F7 Pro 4 + KM65 65A AM32 Stack (MPU6000)

A 30.5 × 30.5 mm flight stack pairing the Skystars F7 Pro 4 flight controller with the KM65 65A 4-in-1 ESC on AM32 firmware. It suits 5" freestyle and racing quads as well as 7–8" long-range builds on 2207 to 2808 motors and 3–6S packs, with either analog or digital video.

Key features

• STM32F722 flight controller: 216 MHz F7 processor, MPU6000 gyro, BMP280 barometer and 16 MB blackbox flash.
• Six UARTs: room for receiver, GPS and peripherals, plus a plug-in connector for DJI air units with HD OSD on UART6 and a Betaflight SPI OSD for analog.
• Dual BEC: 5 V 3 A for the electronics and 10 V 3 A for a video transmitter or HD air unit.
• KM65 ESC on AM32: 65 A per channel, bidirectional DShot, ESC telemetry and PWM frequency up to 128 kHz.
• Protection: aluminium heat sink over the ESC, a TVS diode against voltage spikes and an onboard current sensor for consumption readout.
• Firmware targets: Betaflight SKYSTARSF722Pro and INAV SKYSTARSF722HD.

Specifications

• FC MCU: STM32F722RGT6, 216 MHz
• Gyro: MPU6000
• Barometer: BMP280
• Blackbox: 16 MB
• UARTs: 6
• BEC: 5 V / 3 A and 10 V / 3 A
• ESC current: 65 A per channel
• ESC firmware: AM32
• Input voltage: 3–6S LiPo
• Mounting: 30.5 × 30.5 mm, soft-mounted
• FC size: 39 × 39 mm
• FC weight: 6.9 g
• In the box: flight controller, ESC, XT60 lead, capacitor, accessory kit

Solder the supplied capacitor across the ESC battery pads as close to the board as possible — on 6S it is the main defence against voltage spikes. For a DJI or Walksnail air unit, power it from the 10 V BEC and run its OSD on UART6.