9-pin USB 2.0 expansion board based on GL823K motherboard

electronicOrgan.hex

PDF_CH32-based Touchscreen Electronic Keyboard 2023-v3.0.zip

Altium_CH32-based Touch Keyboard 2023-v3.0.zip

PADS_CH32-based Touch Keyboard 2023-v3.0.zip

BOM_CH32-based Touchscreen Electronic Keyboard 2023-v3.0.xlsx

96865

2.5-inch hard drive enclosure

A 2.5-inch hard drive enclosure based on JMS578 and supporting USB 3.0.

1. The schematic diagram is referenced from: USB to SATA Hard Drive Enclosure Based on JMS578 [Verified] - JLCPCB EDA Open Source Hardware Platform (oshwhub.com).
    Based on this, the USB interface has been changed to a USB-A female connector, and the DC interface has been removed.
2. Stack-up structure: JLC0216. To ensure the same size as a 2.5-inch hard drive, the PCB size slightly exceeds the 10*10mm limit for free board making. Those who want free board making can reduce the size and redo the copper pour.
3. Except for the main chip JMS578 and Flash PM25LV512, all components in the BOM are selected from the optimal part numbers of their corresponding specifications on the LCPCB website (based on the Guangdong warehouse). One-click ordering is supported.
    If you choose to purchase these yourself, please ensure you select the SMT model on the SATA female connector.
4. Flash firmware is detailed in the attached bin file and can be programmed using J-Link.
5. The underlying numerical diagram is shown below. For detailed numerical diagrams and reference numerals, please refer to the attached PDF file. After inserting
 
 
the actual product image
 
into the computer, the Device Manager can recognize the device as shown in the image below:
 
Actual transfer speed under USB 3.0 connection:
 
Finally, a note: As you can see from the last image, currently, with color silkscreen printing, if the solder mask layer is opened, the resulting board will most likely have the solder mask peeling off; also, judging from the link to this project, the author is a complete idiot who participated in an activity, designed a four-layer board, only to discover during prototyping that color silkscreen printing doesn't support four-layer boards and that four-layer boards cannot be converted to two layers, ultimately hastily changing the project title (；´д｀)ゞ

2.5-inch hard drive enclosure numerical diagram and reference number diagram.pdf

JMS578.bin

MS578 Datasheet V1.01.pdf

2.5-inch SSD.png

PDF_2.5-inch Hard Drive Enclosure.zip

Altium 2.5-inch Hard Drive Enclosure.zip

PADS 2.5-inch Hard Drive Enclosure.zip

BOM_2.5-inch hard drive enclosure.xlsx

96866

CxT6 core board base plate

Baseboard suitable for various CxT6 core boards

Those who have studied microcontrollers almost universally own numerous STM32F103C6T6 core boards. Using core boards for learning offers undeniable flexibility. However, direct connection with DuPont wires can lead to various problems, such as insufficient current, incorrect wiring, and loose connections. This board is designed to utilize existing components and thoroughly test various microcontroller peripherals. Because the market is flooded with various core boards of varying quality, this design uses the most affordable pinout of the STM32F103C6T6 as the standard. It is also compatible with other microcontroller boards from HoloMatic.

DAPlink.hex

stm32f103xb_stm32f103rb_if.hex

PDF_CxT6 Core Board Baseboard.zip

Altium_CxT6 core board baseplate.zip

PADS_CxT6 core board baseplate.zip

BOM_CxT6 Core Board Baseboard.xlsx

96869

USB 3.0 hub (Type-C, reversible plug)

This USB 3.0 hub, based on the VL813, features a one-to-four configuration and uses a Type-C interface, supporting reversible plugging.

I. Design Summary:
This USB 3.0 hub based on VL813 adopts a one-to-four structure. The hub uses a Type-C interface and supports reversible insertion.
II. Design Schematic Diagram
III. PCB Diagram
(Front
and Back) IV
. Physical Display
V. Precautions:
(1) The interface uses Type-C. If you want the interface to support reversible insertion, you need to add a VL160 chip. Without adding a VL160, only one side of the interface can recognize USB 3.0, and the other side can only recognize 2.0.
(2) VL813 can be considered as a replacement for 812. The functions and circuit connections are the same, and 813 is cheaper.
VI. Function Demonstration
: Speed ​​test can run at full speed of solid-state.
 
 
 

da5a139372bdc96095f2a20571fae3b9.mp4

PDF_USB3.0 Hub (Type-C, Reversible).zip

Altium USB 3.0 Hub (Type-C, reversible plug supported).zip

PADS USB 3.0 Hub (Type-C, reversible plug supported).zip

BOM_USB3.0 Hub (Type-C, Reversible).xlsx

96871

(Editing in progress) NE555 Breathing Light - Master's Sword

NE555 Breathing Light - Master's Sword

This is my first attempt at making something like this, so it's quite rough. I hope everyone can offer their feedback. I was inspired after completing the final stage of the Sword Trial, and this idea suddenly came to me. I made the Master Sword and used a PCB to create a small decorative
 
 
base, adding a USB 2.0 hub for increased usability.
 
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The USB hub wiring is not yet standardized, and I cannot guarantee that it will work properly with all USB devices. It will be updated and modified later (please use a 12MHz crystal oscillator).
-------------------------------------------------------------------------------
 
 
The sword uses an NE555 as its breathing light. The sword can be plugged into any Type-C device with an output function, and it works normally in all tests. The actual effect is slightly blue; I feel it looks better in photos.