STM32F103Z minimum system

Introduction: STM32F103Z minimum system

Schematic PCB

STM32F103C minimum system

Introduction: STM32F103C minimum system

Schematic PCB

ESP32+RELAY

Introduction: Integrated relay control, touch function, and I2C interface, WS2812 (RGB) control, carbon monoxide simulation acquisition function

Schematic PCB

windows_hello

Introduction: A shell for the Windows hello camera

Schematic PCB

40p minimum stc89c52 microcontroller downloader

Introduction: The development board is inconvenient, and the minimum system version has too many points that are easy to confuse and difficult to synchronize, so I designed a downloader for myself. Newbies have no experience, so just give it a try. If you like it, you can copy it and solder it. Play!

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SCR control module

Introduction: SCR control circuit module

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Touch detection

Introduction: Touch control circuit, and sound and light alarm circuit

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LYMK_0-0_

Introduction: This Bluetooth audio backplane module is a small but fully functional baseboard module designed for Qualcomm QCC3034, QCC5124, and QCC5125 core modules. It’s a modular decoding baseplate! ! !

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Bluetooth QCC3008 board

Introduction: Bluetooth 5.0 audio decoding board based on QCC3008

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SW3519

Introduction: SW3519 multi-fast charging protocol dual-port charging supports fast charging output from any A+C port and supports independent current limiting for dual ports.

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Heart-shaped PCB greeting card based on WS2812B

Introduction: PCB heart-shaped greeting card, confession sharp tool refill <3, use a white marker to write what you want to say to him or her on the front, and use the DIP switch on the back to select the light-emitting color. After he receives it, press the switch, and this item will light up. Based on WS2812 lamp beads, STC8G1K08 8-pin microcontroller is designed and produced.

Schematic PCB

83-key special arrangement mechanical keyboard

Introduction: 83-key mechanical keyboard integrates the F area function into the horizontal digital area and streamlines the functional area keys to 4. The numeric keypad is retained and moved to the left to facilitate people with numeric input needs to enter numbers without leaving the mouse with their right hand. Teesny2.0++ is used as the main control and QMK firmware is used.

Schematic PCB

[Training Camp_Advanced Class] OLED Smart Socket

Introduction: This project is a three-hole smart power strip that uses STM32F103C8T6 as the main control, connects to Alibaba Cloud through EMW3080, and can use OLED and EC11 encoders for offline control.

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T12 soldering station

Introduction: T12 Soldering Station

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ad620 precision instrumentation amplifier amplifier copy board_verification is feasible

Introduction: Using AD620.Copy board

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Evaporative smart air humidifier based on ESP32

Introduction: An evaporative smart air humidifier based on ESP32, which supports local temperature and humidity, ambient light detection, networked weather, time and other information query, and intelligently humidifies according to the environment, giving you the most comfortable experience. Commercial use is prohibited, thank you.

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Handheld dot matrix game console

Introduction: This is a handheld game console with four games.

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USB3.0 Gigabit network card-RTL8153B

Introduction: This is a Gigabit USB network card based on RTL8153B.

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STC microcontroller development board

Introduction: STC microcontroller development board, compatible with 89C, 12C series and 8A microcontrollers

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[Four-layer board] TMC2208/TMC2209 stepper motor driver

Introduction: This is a four-layer board TMC2208/TMC2209 stepper motor driver for 3D printers.

Schematic PCB