Onboard 5V Fan Port

The Gemini board is equipped with a controllable 5V interface for main control heat dissipation, and the wiring method is as follows:

Command to execute before adding configuration via SSH

wget https://cdn.mellow.klipper.cn/mirrors/fly/linux-dtb-current-fly-sunxi64_3.3.5_arm64.deb && sudo dpkg -i linux-dtb-current-fly-sunxi64_3.3.5_arm64.deb

Reference Configuration

[mcu host]                      # FlyOS has already generated the Linux MCU for you, define it to use          
serial: /tmp/klipper_host_mcu 

[temperature_sensor FLY-π]      # Host machine temperature
sensor_type: temperature_host


[temperature_fan core_fan]      # Host machine cooling fan
pin: host:gpiochip1/gpio103     # Host machine fan pin
max_power: 1.0
sensor_type: temperature_host   # Set as the host machine main control temperature
control:watermark               # Control mode
target_temp: 48                 # Temperature at which the host machine cooling fan starts
min_temp: 0                     # Lowest temperature, below this value will cause an error
max_temp: 90                    # Highest temperature, above this value will cause an error
off_below: 0.10
kick_start_time: 0.50
max_speed: 0.8                  # Maximum speed, 80% of full power operation
min_speed: 0.3                  # Minimum speed, 30% of full power operation