Four-way push rod motor driver board

Introduction: A four-way motor driver board that can be connected to the RS485 bus to control the motor array.

Schematic PCB

CH340N_Mini USB serial port

Introduction: Useless USB serial port debugging & downloader

Schematic PCB

EP4CGX150 core board

Introduction: With the progress of very large scale integrated circuit technology, the integration level of integrated circuits continues to increase and the scale becomes larger and larger. Core-based design has become an inevitable trend in the development of EDA. Due to the emphasis on design ideas and design knowledge, the design process is reduced. Cost and design cycle, IP core has become an important design method for system-on-chip

Schematic PCB

msp430f5529 expansion board

Introduction: This project is based on the MSP430F5529 board officially applied for by e-sports as the core board. Some peripheral circuits and connectors of modules commonly used in e-sports are drawn. It is convenient and simple and contributes to our e-sports.

Schematic PCB

USB to TTL

Introduction: CH340G to TTL serial port downloader, this downloader supports 3.3V and 5V STC full series of MCU programming programs and BSL mode programming of MSP430 MCU is limited to MspFet software programming.

Schematic PCB

STC32_SOP32_anti-posting_01

Introduction: stc32 anti-posting_01

Schematic PCB

STC8G1K08(A) core board

Introduction: STC8G1K08 TSSOP20
STC8G1K08A SOP8
core board

Schematic PCB

stm32g030f6p6 development board

Introduction: Because I bought a lot of stm32g030f6p6 for free, and I won’t do any projects for the time being, I just made a development board.

Schematic PCB

[Internet of Things] Hongmeng IoT Smart WIFI Switch +1506690A

Introduction: Use Hongmeng Hi chip combined with servo to realize WIFI remote control of physical switches in home or dormitory

Schematic PCB

Gundam breathing light

Introduction: Second Prize in the 2022 Guangzhou City Polytechnic School of Electrical Engineering Electrical and Electronic Breathing Lamp Design Competition

Schematic PCB

2021 Question B - Three-Phase AC-DC Conversion Circuit STI Capacitor Exploding Team

Introduction: 2021 National College Student Electronic Design Competition Question B

Schematic PCB

CY7C68013 logic analyzer

Introduction: CY7C68013 logic analyzer, 8 channels 24Mhz, single-sided chip small size, supports PulseView and salee

Schematic PCB

Bluetooth fingerprint lock V1.1

Introduction: Graduation project, a car Bluetooth fingerprint lock based on APM32. The main control is Jihai's APM32, and the Bluetooth module is ESP32. You can also write a wifi program to make it a wifi module.

Schematic PCB

【Verified】AS3636 flash

Introduction: An AS3636 flash controlled by STC15W104

Schematic PCB

Timeline change meter-SQUIRRELMEDIA

Introduction: Based on the schematic diagram of the QS1812 Nixie Tube "World Line Variation Instrument" designed by bilibili user @ Lost Sand based on the STC15F2K60S2 microcontroller, the modification is suitable for IN-14 Nixie Tubes, and the basic functions have been verified.

Schematic PCB

STM8S903K3T6C core board

Introduction: STM8S903K3T6C core board, designed by myself but not tested yet

Schematic PCB

Solder paste machine 2

Introduction: Extremely low-cost solder paste machine

Schematic PCB

DAPlink emulator V2

Introduction: DAP emulator is an open source emulator officially launched by ARM. It is copyright-free and freely produced.

1. No driver required, just plug it in and use it.

2. Supports all Cortex core microcontrollers, regardless of manufacturer.

Schematic PCB

AT89S52 solution colorful flowing water lamp

Introduction: This is a colorful flowing water lamp developed using s52 microcontroller. It is currently open source and supports secondary development. If you are interested, you can visit my studio @www.sonlin.xyz

Schematic PCB

Raspberry Pi 3b mini expansion board

Introduction: A cheap 3b mini expansion board. The USB part needs to be removed and re-soldered. All pin headers use 2.54mm bidirectional pin headers.

Schematic PCB