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1.Easy to use and quick to get started
2.The process supports design scales of 300 devices or 1000 pads
3.Supports simple circuit simulation
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2.Smooth support for design sizes of over 5,000 devices or 10,000 pads
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PRO CH335 HUB
CH335 HUB
License
GPL 3.0
License: GPL 3.0Mode:
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Update time：
2024-07-12 11:44:41
Creation time：
2023-07-14 19:57:40
Description
Description
The controller chip is CH335F. Power of each port is controlled by CH217K. You may use uhubctl to control power of each port. So the power of each USB peripheral can be controlled by software.
R16 set the hub to work as Bus-powered. R15 set the hub to work as individual port control.
Note the hub will report as a 200mA device in bus-powered mode. So if the devices attached to hub require more than that, computer may refuse to initiate device. A EEPROM can be used to replace the 2 resistors to set all parameters in descriptor.
Here is also a 3D printed case for the board. The screw holes are designed to fit M3 counter-sunk machine screw. Depending on your machine accuracy, you may need to enlarge the hole with 2.5mm drill bit and tap M3 thread inside. Also the counter-sunk hole may need to be enlarged.
Design Drawing
Design Drawing
schematic diagram
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PCB
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BOM
BOM
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Project Members
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