This keyboard is a HUB function added based on the project of the original author -> https://oshwhub.com/mo-ming-dian-zi/ji-yu-HT82K629Ashuo-zi-xiao-jian . Can drag three USB2.0 devices.
No HUB board link: https://oshwhub.com/Kirito/shuo-zi-xiao-jian-pan_copy You can make a sample for 5 yuan
The keyboard interface is MicroUSB, which can be changed to Typec or other interfaces.
The overlapping bug between the R3 resistor and USB on the PCB has been improved, and the board can be printed directly. Rendering:
Regarding the USB signal line: Since the differential pair wiring is not very reasonable, coupled with the shortcomings of the HUB chip, the measured transmission speed will have a certain impact and instability . It is recommended to only hang some keyboards, mice, WiFi, etc. on the hub, and use U disks. Computer native socket.
Speed test: reading files from a 3.0U disk
Because the hub function is added, the PCB height is greater than 10cm, so it cannot be used with JLC's five-yuan board. It would also look good if the hub function was deleted. As shown below:
You can buy the keycaps on Taobao. By the way, the gradient blue one is really nice. However, I searched all over Taobao and they couldn’t find it. = =
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