OctoPrint-GpioFanController

This is a lightweight plugin dedicated for controlling a fan via Raspberry Pi GPIO pin. This plugin has the following features:

• Convenient sidebar control
• Adjustable FAN speed
• Pin selection via settings
• M106 / M107 GCODE support
• Independent GCODE control using optional fan index
• Optional proportional speed mode based on CPU temperature

Setup

Install via the bundled Plugin Manager or manually using this URL:

https://github.com/z4gunn/OctoPrint-GpioFanController/archive/master.zip

IMPORTANT - FAN Compatibility

This plugin is only intended to drive an external brushless DC FAN via MOSFET driver circuit. A MOSFET must be used to drive the FAN since the PI is not capable of providing adequate current to the FAN.

It is a also a good idea to use a separate power supply to drive the FAN since the PI power supply might not have adequate current to drive the PI + FAN. The following diagram is an example of how to interface to a 12V DC FAN.