Leonardo da Vinci's secret weapon

VID_20240418_171906.mp4_20240419_101948.mp4_20240420_124441.mp4

VID_20240418_171933.mp4_20240419_102052.mp4_20240420_124526.mp4

PDF_Da Vinci's Secret Weapon.zip

Altium_Da Vinci's Secret Weapon.zip

PADS_Da Vinci's Secret Weapon.zip

BOM_Da Vinci's Secret Weapon.xlsx

95137

Guangdong Baiyun College Business Card

Guangdong Baiyun College

Connecting the LEDs and button pads on the upper and lower boards with wires
allows soldering of a 3.7V battery.
The TYPE-C rechargeable
LED power indicator
section can be referenced from the author sam_god's open-source project. [Map of Guangdong Baiyun University (West Campus) - JLCPCB EDA Open Source Hardware Platform (oshwhub.com)].
If there is any copyright infringement, please contact us for removal.

0.hex

BOM_af3f0377304546c0b5a75c6452de7cc3_20231206170404.xls

PDF_Guangdong Baiyun University Business Card.zip

Altium_Guangdong Baiyun College Business Card.zip

PADS_Guangdong Baiyun College Business Card.zip

BOM_Guangdong Baiyun University Business Card.xlsx

95139

YBA-AMS_Remix

3D Printing Single-Channel Material Holder Control Board

Modified from YBA-AMS
.
 
⚠ Please note that although the current version can be supplied with the AMS lite connector, its power consumption is quite high. Please consider this carefully. The next version of the PCB will be compatible with MP1584 to solve the LDO power consumption issue. You can wait for this to be resolved before manufacturing.
Recommended process
 
:

Board thickness: 1.6mm
Minimum hole diameter/outer diameter: 0.3mm (free) (outer diameter 0.4/0.45)
Add markings to the board: Add serial number QR code

QR code size: 8*8mm
QR code location: Designated location



Modified content:

Changed 4 channels to 1 channel for convenient individual control in the consumable drying box.
Changed USBC/DC power supply to AMS lite interface power supply.
DRV8833 was modified from a finished board for soldering, optimizing the PCB area.
The manual control switch has been changed from wiring to soldering, directly fixing it to the consumable drying box.

 
You can see both the switch board and motor board in this project; this is designed to optimize wiring within the drying box. It requires the next version of the spool holder. You can check the update status of [YBA-AMS(Remix)] on MakerWorld.
 
Modified note:

From 4 channels to 1 channel, to control the sole holder in one case.
From USB-C/DC power supply to AMS lite.
From finished DRV8833 board to soldered DRV8833.
From cable-connected switch to soldered switch on board.

 
You can find the switch board and motor board in this project; it's designed for the cable management in case. They should be used with the next version of the spool holder; you can kindly check the update status of [YBA-AMS(Remix)] on MakerWorld.
 
 

BOM_PCB[YBA-AMS(Remix)].xlsx

PDF_YBA-AMS_Remix.zip

Altium_YBA-AMS_Remix.zip

PADS_YBA-AMS_Remix.zip

BOM_YBA-AMS_Remix.xlsx

95140

AT8236 Motor Driver Board & Power Board

This driver module uses the AT8239 motor driver and a TPS5450DDA to provide a 5V 5A power output.

This project serves as the power driver module for a ROS car. All interfaces are connected to the control core board using simple horn-shaped connectors and FC cables, simplifying the board and reducing costs. Any board issues are addressed by simply replacing the faulty one. The board
 
 
also uses two TPS5450DDA converters for 5V/5A output to power the host computer, Raspberry Pi, or other modules like Luban Cat. Theoretically, the maximum output is 5A, but this hasn't been tested due to the lack of a load tester. However, both output voltages are quite good. Solid-state capacitors are used throughout the board. An INA219 was added for circuit detection, which provides more data compared to an ADC, such as current, voltage, and power.
 
The 3.3V connection was initially forgotten, so a jumper wire was used; this has now been fixed in the project, and you can confidently build a board if needed.
 
The TPS5450DDA circuit can also be extracted from the schematic and used. It has been tested and works without issue. It also provides a 3.3V output from the ASM1117 without any problems.
 
 
The board also has an onboard buzzer and two controllable 5V outputs, which can be controlled via GPIO for future expansion. I plan to add a USB hub later, using this 5V interface to power peripherals, since the ROS car will also have a depth camera and LiDAR.
 
The most important part of the motor driver board is the motor drive. One path has been tested and works without any issues. I'm unsure how to upload the video, so please feel free to discuss it. I'm not a professional, and the board certainly has many problems, so please bear with me.
 

087953d0fc2162f3f086e0ffda9efc82.mp4

369ebe43be84a53d48402c6f511059b2.mp4

PDF_AT8236 Motor Driver Board & Power Board.zip

Altium_AT8236 Motor Driver Board & Power Board.zip

PADS_AT8236 Motor Driver Board & Power Board.zip

BOM_AT8236 Motor Driver Board & Power Board.xlsx

95141

Liangshan School Electronic Keyboard Expansion Board

Liangshan School Electronic Keyboard Expansion Board

Design of Electronic Keyboard Expansion Board Based on LCSC Liangshanpai:


1. Objective: To become familiar with the development process of embedded projects and master the ability to design a game console hardware circuit, software programming, and system debugging.


2. Function Introduction:

Implements I2C display of current information; (to be implemented later, already driven. Unsure of its use yet)
Implements 23-button control;
includes sound output functionality;

3. Skills Acquired:
     Hardware Development Ability

: Learns embedded project circuit analysis skills and how to understand schematic diagrams;
gains basic skills in component selection and datasheet reading;
learns schematic and PCB design skills, cultivating independent project design thinking;
understands the design of I2C screens, PWM audio circuits, etc.;
masters the use of instruments such as multimeters, oscilloscopes, signal generators, and student power supplies, possessing basic circuit analysis skills;
masters the use of tools such as soldering irons and hot air guns, possessing component soldering and hardware debugging skills, becoming a new generation of "soldering masters";

     Software Development Ability:

Understands the basic functions and peripherals of GD32, and gets started with GD32 project development;
understands audio encoding formats and implements audio output;
understands the I2C protocol and OLED driver principles, and implements screen driving;
masters interface creation;
understands the basic working principles of audio;
masters embedded software development, code reading, and bug debugging methods and techniques;

GD32F450.hex

Electronic Keyboard.rar

501da5fe7d2ef95f369b09376aec2983.mp4

PDF_Liangshan School Electronic Keyboard Expansion Board.zip

Altium_Liangshanpai Electronic Keyboard Expansion Board.zip

PADS_Liangshanpai Electronic Keyboard Expansion Board.zip

BOM_Liangshanpai Electronic Keyboard Expansion Board.xlsx

95143

electronic