Fly Pi Core Fan Setup in Klipper
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Klipper Core Fan Configuration

The Fly Pi has a 5V controllable fan interface on board, which is used for CPU Cooling. The wiring method is as shown in the figure below

Pin location

Fly Pi Core Fan
Fly Pi Core Fan

Klipper Configuration

  • Add the following to your printer.cfg to enable the core fan.
  • Klipper Host MCU is enabled by default in Fly OS.
[mcu host]
serial: /tmp/klipper_host_mcu
[temperature_fan core_fan]
pin: host:gpio3
max_power: 1.0
sensor_type: temperature_host
target_temp: 48
min_temp: 0
max_temp: 90
off_below: 0.10
kick_start_time: 0.50
max_speed: 0.8
min_speed: 0.3