MM32G0001 Expansion Board

WeChat_20240323200922.mp4

WeChat_20240323200943.mp4

PDF_MM32G0001 Expansion Board.zip

Altium_MM32G0001 Expansion Board.zip

PADS_MM32G0001 Expansion Board.zip

BOM_MM32G0001 Expansion Board.xlsx

95620

Flashing tool for optical modem stick (SFP serial port tool)

Firmware flashing tool for Huawei, ASIC, Nokia and other SFP sticks

Based on [Panda's project](https://oshwhub.com/guocuodecuoguo/shuang-sfp-mao-bang-zhuan-jie-kuo-zhan_copy), I was playing around with it one night out of boredom and noticed that the Type-C port wasn't centered, triggering my OCD. I also took the opportunity to test my half-year-long work on a semi-automatic routing algorithm.

/*March 22, 2024 - Re-ran it using an updated automatic routing algorithm. Only the routing was changed; the component types, quantities, and positions were not adjusted. The previous version's interactive BOM still works.*/

Removed the header pins, replaced the serial port chip with a CH340X, and rearranged the PCB routing. All components were moved to one side for easy soldering with a heating plate. The SFP and Type-C ports were centered, and I even beveled a corner.

In short, here's a comparison with the original project:

![Comparison Image.jpg]
Component standardization is complete; the SFP interface and matching soldering cage can be purchased directly from Taobao.

Verified and successful; serial port content can be printed. The test stick is an Alcatel G-010S-P, shipped about two weeks ago, with a baud rate of 115200, as shown in the image.

![Test Result.png]
The attached file is an interactive BOM exported from AD.

BOM.html

PDF_Optical Modem Flashing Tool (SFP Serial Port Tool).zip

Altium_Optical Modem Flashing Tool (SFP Serial Port Tool).zip

PADS_Optical Modem Flashing Tool (SFP Serial Port Tool).zip

BOM_Optical Modem Flashing Tool (SFP Serial Port Tool).xlsx

95623

[Verified] Kitchen Alarm Clock

One countdown alarm clock

A countdown alarm clock powered by a lithium battery.
 
 
 
 
Function description:
Left button: Short press to increase minutes, long press to continuously increase minutes
; Middle button: Short press to increase seconds, long press to continuously increase seconds
; Right button: Short press to start or stop, long press to power on/off;
Short press both left and middle buttons together to clear the timeout
state, automatically shutting off after 2 minutes.
 
Assembly instructions:
The motherboard is secured with screws, the front and back covers are glued together, and the back cover has magnetic adhesive strips.
 
Accessories:
Lithium battery: Specifications 602040/500mAh, adhesive backing attached to the inside of the back cover, pay attention to the positive and negative
terminals when wiring; Screws: M2.5*5;
Screen: 1.14-inch TFT, 135*240; ST7789V, mine is from Taobao Baoyingfeng Display
 
. Note: The MCU is AIR32F103CBT6, with 96k RAM enabled, incompatible with STM32F103
           firmware. The casing is included. The firmware can be flashed using ST-LINK, JLINK, or DAPLink.

KitchenClock.hex

Top cover .STL

Bottom .STL

PDF_[Verified] Kitchen Alarm Clock.zip

Altium_[Verified] Kitchen Alarm Clock.zip

PADS_[Verified] Kitchen Alarm Clock.zip

BOM_[Verified]Kitchen Alarm Clock.xlsx

95624

FOC brushless motor driver board F405RG dual-channel

A 2-channel FOC brushless motor driver board based on STM32F405RG, with a size of 10*10 or smaller and a 2-layer architecture.

This is a 2-channel FOC brushless motor driver board based on the STM32F405RG, smaller than 10*10cm. It features a 2-layer
main controller: STM32F405RGT6 (168MHz), 1MB flash memory,
driver IC: FD6288T* 2,
MOS: IRFS3607PBF*12
, op-amps: MCP6024*2 (7.5x amplification), differential
amplifier, sensor interfaces: HALL*2 (UVW), ENCODE*2 (ABZ) completely independent,
screen interfaces: LCD 160*80, OLED 12864, completely independent,
communication interfaces: UART*1, USB*1, for easy debugging or connection to external control units (e.g., Bluetooth serial port).
 
Project and code: https://github.com/Cuixudong/BLDC_DRV
A star would be greatly appreciated!
 
 
 
 
 
 
 

March 22.mp4

PDF_FOC Brushless Motor Driver Board F405RG Dual-Channel.zip

Altium_FOC brushless motor driver board F405RG dual-channel.zip

PADS_FOC Brushless Motor Driver Board F405RG Dual Channel.zip

BOM_FOC Brushless Motor Driver Board F405RG Dual Channel.xlsx

95625

[Possibly the most elegant] Zhaoneng M2 painless USB 3.0 installation.

Possibly the most elegant Zhaoneng M2/Hemu AX18 USB 3.0 upgrade solution you've ever seen.

Attention! Strictly prohibited for commercial use!! Playing with it yourself is fine, but selling it is not! A special reminder: I am a heavy user of Xianyu (a second-hand marketplace platform), please don't let me see this on Xianyu or other similar platforms !
 
A graceful and painless USB patch for the Zhaoneng M2
. Are you still worried about those small 0201 parts? Are you still blinded by flying wires? Are you still uncomfortable with those unsightly flying wires? We don't want that! We want elegance, we want convenience! We want painless! Using JLC's free FPC prototyping, the following patch was created, solving the following pain points: 1. Eliminates manual flying wires 2. Eliminates patching small 0201 parts on the front 3. Eliminates unsightly step-down module patches 4. Comprehensive anti-static protection 5. Calculated impedance matching 6. Perfectly aligned soldering positions – one soldering is all it takes! Finished product image: Step 1: Clean the solder pads and apply a little high-temperature tape to protect them and prevent short circuits. Step 2: Solder the FPC . Step 3: Apply double-sided tape to the back of the FPC. Step 4: Solder the FPC USB connector and connect it to a 12V power supply using a jumper wire. Completed . Insert the USB flash drive. Kernel log displayed: Test: