Resource usage indicator

Introduction: Project based on STC8G1K08

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QC2.0 decoy

Introduction: QC2.0 decoder designed based on STC8G1K08-8PIN, supports 5v/9v/12v three-speed output.

Schematic PCB

[Cost 5 yuan] DotMatrix 24x16

Introduction: 24x16 Uart dot matrix screen based on STC8G1K08A-8Pin

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[Cost less than 10 yuan] Keyboard with free setting of single key/combination key mapping

Introduction: Contains 5 customizable mechanical buttons. Users can freely edit the function of each button offline, and it will be automatically saved after power off, so there is no need to edit it again next time it is started. Supports single key mapping (such as regular keys AZ, 0-9, etc.) and combined key mapping (such as Ctrl+C, Ctrl+V, etc.).

Schematic PCB

STC8G1K08A minimum system

Introduction: STC8G1K08A minimal system

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[Open Source] STM32 four-axis remote control

Introduction: A four-axis remote control based on the open source four-axis version of RoboFly.

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[Open Source] STM32 quadcopter-old version

Introduction: A quadcopter made with reference to Xiaoma Ge’s RoboFly open source quadcopter

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Gesture recognition module based on stm32 and paj7620u2 sensor

Introduction: The sensor course design uses paj7620u2 sensor and stm32 sensor, which can recognize 9 kinds of gestures and control the small fan with gestures.

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FEVSPIN32G4VB

Introduction: The evaluation board EVSPIN32G4 is copied from ST’s newly launched motor-specific MCU—STSPIN32G4VB.

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STM32-SFOC-TMC6200

Introduction: SimpleFOC, a high-power version for driving 42BLDC

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2021 Question B three-phase AC-DC conversion circuit has one god and two pits

Introduction: This system is based on the AC-DC voltage synchronous rectification circuit of BOOST boost PFC to achieve the design requirements. At the DC-DC end, a voltage phase-locked loop and a current phase-locked loop are used to stabilize the DC output, and PID technology is used to stabilize the output. The load regulation rate and voltage regulation rate are both less than 0.3%.

Schematic PCB

r2r_iis_dac decoder

Introduction: 24bit r-2r audio decoder

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STC8H8K64U-LQFP48 core board_

Introduction: STC8H8K64U_LQFP48 core board. Use STC8G1K to implement cold start of download.

Schematic PCB

Car-based sound guidance system

Introduction: This car-based sound guidance system uses a sound sensor to collect moving sound source information. The microcontroller calculates the time difference of the sound sensor to obtain the error between the moving sound source and the target location. It uses Bluetooth communication to control the moving sound source to the designated location. .

Schematic PCB

74 chips to build 8bit ADC (analog-to-digital converter)

Introduction: This ADC adopts a successive approximation design. The microcontroller uses a parallel port and is accessed by off-chip RAM mapping. It is recommended to use a 51 microcontroller. The circuit structure completely imitates the relevant chapters of the digital and electronics textbook.

Schematic PCB

[STC alchemy furnace] 89C52RC minimum system

Introduction: The module is divided into three parts: USB-micro + CH340G automatic downloader (no reset required), 89C52 automatic download, xdata matching device (74LS373). This minimal system is suitable for teaching and experimentation

Schematic PCB

8*8 serial port button matrix

Introduction: The serial port button array is made of 74 chips, supports 64 buttons, comes with anti-bounce, and is easy to use. The microcontroller can use a similar serial port method to read the pressed key value, suitable for 51 microcontrollers, Arduino, etc.

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High frequency soldering station V1.0

Introduction: DC powered high frequency soldering station using Royer oscillator.

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CH552G numeric keyboard

Introduction: 17-key RGB+ hot-swappable minimalist style numeric keypad. Clone "https://oshwhub.com/hivisme/17jian-shuo-zi-xiao-jian-pan", replace micro with TYPE-C, other changes remain unchanged

Schematic PCB

Kear - Ming Zen Xiuxianliu [Single section charging management slow charging software battery meter]

Introduction: Single-cell 18650 charger dual-channel version software fuel gauge

Schematic PCB