A 2-wire fan control board meant to silence the PWM noise.
A project aiming to create a PCB that provides the means to supply your 3D-printer's fans with a smoothed DC voltage using a PWM-controlled input signal.
The main filter circuit can also be used with an existing low-side switched MOSFET port on a 3D-printer motherboard, although there are no PCB files for this purpose at this time.
You can get in touch with me and other people affiliated with this project through our Discord server for Armchair Heavy Industries.
This source describes Open Hardware and is licensed under the CERN-OHL-S v2 or any later version.
You may redistribute and modify this source and make products using it under the terms of the CERN-OHL-S v2. (https://ohwr.org/cern_ohl_s_v2.txt)
This source is distributed WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING OF MERCHANTABILITY, SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE. Please see the CERN-OHL-S v2 for applicable conditions.
Source location: https://github.com/HumbleDeer/WhisperDrive
As per CERN-OHL-S v2 section 4, should You produce hardware based on this source, You must where practicable maintain the Source Location visible on the PCB.
Some other projects that may be worth checking out. These are probably friends of the communities I hang out in.
- NyoomiesKME
A Pico or BlackPill powered expansion board for Klipper, with support for four motors running in SPI or UART, and ability to run higher currents than most mainboards. - Danger Klipper
Klipper but... DangerousThis is a community-maintained fork of the Klipper firmware. Our goal is to support features and behavior that could be "risky" if used incorrectly.