Luminous RFID meal card

Introduction: Luminous RFID meal card

Schematic PCB

Rectifier filter board (double parallel connection)

Introduction: This is a double parallel rectifier filter board, using four large filter boards composed of 63v10000uf. (This is the rectifier filter board of the power amplifier)

Schematic PCB

LED running water high-end marquee special effects watch I bought last year

Introduction: Full LED dial clock with 15W408AS+BM8563 solution

Schematic PCB

Portable thermometer and hygrometer

Introduction: STC15W204S+ (AHT10|DHT11|DS18B20|...) temperature and humidity display solution supports 0.36-inch and 0.56-inch four-digit digital tubes and 0.96-inch IIC interface OLED

Schematic PCB

Smart switch

Introduction: Transformation Project

Schematic PCB

JQ8900N

Introduction: JQ8900N is an alternative version of JQ8900. It functions as voice broadcast and can use serial communication.

Schematic PCB

[Hangshun Training Camp] Low-cost mini movable laser galvanometer projection based on Hangshun MCU

Introduction: This project implements basic laser projection functions, including PCB, driver, and 3D printing shell, with a volume of 5x4x5cm. Hangshun HK32F030M main control drives two galvanometer motors to achieve projection. Low-cost design, the BOM unit price is only 5.81 yuan without battery function.

Schematic PCB

[Creative PCB] Moon night light with integrated Internet phone

Introduction: "Thousands of miles apart, sharing the beauty of the moon" integrated Internet phone, Mid-Autumn moon night light drawn on an octagonal circuit board

Schematic PCB

Headphone charging compartment schematic design

The schematic diagram of the charging box, the basic functions are as follows: 1. Charge the battery inside the charging box 2. The charging box charges the earphones 3. The charging box communicates with the earphones

Schematic PCB

ESP-WIFI module

Introduction: Finished painting. You need to verify it yourself, I am going to make a sample test.

Schematic PCB

[Verified] 1u power supply modified module PCB

Introduction: Module cable PCB designed for 1U power supply, suitable for use with Delta DPS-500YB power supply

Schematic PCB

Universal infrared remote control

Introduction: Infrared remote control

Schematic PCB

STC8A8K

Introduction: This project is a BitBoy game console with a 0.96-inch OLED display.

Schematic PCB

nrf52832DEV

Introduction: This project is Nordic nrf52832 development board

Schematic PCB

MelonPI-F1

Introduction: The main chip used in this project is F1C200S. I am using a system that I transplanted myself. You can also use the Litchi Nano system. Of course, if you need information, you can contact 1477153217@qq.com.

Schematic PCB

PeanutPI

Introduction: This project is based on F1C200S open source hardware, and the system is equipped with Linux operating system

Schematic PCB

[Meiyan Electronics Production] Simple LCR instrument design

Introduction: Design of a simple resistance, capacitance and inductance measuring instrument based on STM32.

Schematic PCB

[DIY Design] Based on HLW8032 electric energy metering system

Introduction: The minimum system of L51-01 microcontroller is a system composed of AT89S51/52 or other 51 series compatible microcontrollers and peripheral circuits such as power supply circuit, crystal oscillator circuit, reset circuit and program download.

Schematic PCB

S00004 Three-phase energy measurement module based on HT7036

Introduction: HT7036 collects the voltage and current of three-phase alternating current

Schematic PCB

[DIY Design] WIFI Smart Socket Learning Board

Introduction: A smart socket system composed of STM32 as the controller, HLW8032 metering chip to collect electric energy, Alibaba Cloud as the medium, and ESP-01M wifi module to transmit data.

Schematic PCB