AT32F403ACGT7 core board (compatible with C8T6 core board)

AT32F403ACGT7 classic pin interface diagram.pdf

AT32F403ACGT7 classic pinout diagram.png

AT32_Project.zip

AT32F403ACGT7 core board data package.zip

PDF_AT32F403ACGT7 core board (compatible with C8T6 core board).zip

Altium_AT32F403ACGT7 core board (compatible with C8T6 core board). zip

PADS_AT32F403ACGT7 core board (compatible with C8T6 core board). zip

BOM_AT32F403ACGT7 core board (compatible with C8T6 core board).xlsx

93087

Digital Meter Training Camp

A simple and practical digital electricity meter

A simple and practical digital meter
incorporates a voltage reference chip. The core of the 431 microcontroller is an operational amplifier (op-amp) that acts as a comparator in the circuit. Internally, the chip has a voltage Vref (approximately 2.5V), which acts on the inverting input of the comparator. The non-inverting input of the comparator receives a voltage input to REF. When this voltage is greater than Vref, the comparator outputs a high level, enabling a transistor and connecting the CATHODE (cathode) and ANODE (anode) terminals. If REF and CATHODE are at the same potential (connected together), the potential at REF is pulled low. When the potential at REF drops below Vref, the comparator outputs a low level, the transistor turns off, and the potential at REF rises back up. When it rises above Vref, the process repeats. Because the hardware response speed is extremely fast, the voltage at REF is almost equal to Vref.

Digital voltmeter and ammeter with calibration function.zip

PDF_Digital Meter Training Camp.zip

Altium Digital Meter Training Camp.zip

PADS Digital Meter Training Camp.zip

BOM_Digital Meter Training Camp.xlsx

93088

Sky Star Car Expansion Board

I bought several SkyStar development boards during a SkyStar promotion, and since I already had wheels for a balance car, I decided to build a SkyStar balance car. During the construction process, I noticed the DuPont wires were a bit messy, so I ended up with this expansion board.

 



I. Introduction to the Skystar Development Board
Skystar Development Board Schematic Diagram:
II. 0.96-inch I2C Screen Interface and 0.96-inch SPI Screen Interface
 
 
III. MPU6050 Interface
IV. Bluetooth Interface
V. All Pins Present





 

PDF_SkyStar Car Extension Board.zip

Altium_SkyStar Car Expansion Board.zip

PADS_SkyStar Car Expansion Board.zip

BOM_SkyStarCarExtensionBoard.xlsx

93089

STC32G12K128 Development Board

Development board based on STC32G12K128-LQFP48 chip

I. Development Board Pin Function Diagram


II. Onboard Components

Main Control Chip: STC32G12K128-LQFP-48
Power Connection: Powered by one Type-C port or connected to a computer for program download
LED Display: One power indicator, one test indicator, and two program download indicators
Button Control: One normally closed switch (POWER) for cold start download, replacing the RESET button; one independent button with interrupt function (BOOT0)
Program Expansion: An external M24C20 EEPROM chip (designed on the back of the development board) is connected via an IIC interface Pin
Header Interface: Two rows of 20-pin 2.54mm headers are used to bring out all chip pins, compatible with the pin arrangements of other mainstream microcontroller core boards; a header interface for connecting a programmer/debugger is reserved on the back of the development board.
Reference Voltage Source: A CD431 reference voltage source is used to provide a stable 2.5V reference voltage for the microcontroller (optional; 5V is provided when not soldered).
 

III. Other Instructions

This development board does not have an onboard serial port chip; instead, it uses the built-in USB-HID function of the main control chip to connect to the computer for downloading.
The download method is as follows: Connect the computer and the development board using a Type-C cable, press and hold the BOOT0 button, then press the POWER button to power on again. When you see the green LED light up, release the BOOT0 button; you have now entered download mode.
The download attachment provides a program for flashing the onboard LED2 (blue light) for testing the development board.

 

STC32G12K128_LQFP48 Demo Video and Program.rar

STC32G12K128-LQFP48 Development Board Verification Video.mp4

PDF_STC32G12K128 development board.zip

Altium_STC32G12K128 development board.zip

PADS_STC32G12K128 development board.zip

BOM_STC32G12K128 development board.xlsx

93091

J-Link BASE V9 (Jlink V9)

J-Link Base V9

Attention!!!

Select 7628 stack-up.

The project

uses a generic housing with a Type-C interface and provides a Vref/3.3V power switch (an indicator light will illuminate when switched to 3.3V).
Remove the RTCK signal cable.

Note:


Special note: H1 in the BOM is unnecessary. Purchase an 8.35mm Type-C adapter; standard ones will be slightly recessed.


The Type-C interface requires enlargement. The switch also needs additional drilling depending on the situation (if switching is infrequent, the switch can be removed; one of the case and graphics card will always need to be removed).


Download requires 1.27mm pitch probes; the adapter provides 1.27mm 2x5 and 2x7 adapters, as shown in the image.