500 W fully digital AC-DC power supply (D-SMPS) based on STM32F334C8 microcontroller

500W fully digital AC-DC power supply (D-SMPS) based on STM32F334C8 microcontroller

Schematic PCB

Graduation project based on 51 microcontroller electronic code lock design (schematic diagram, source program, thesis, etc.)

The system consists of STC89C52 microcontroller, 4*4 matrix keyboard, buzzer, reset circuit and crystal oscillator circuit, relay, etc. The 4*4 keyboard is mainly used for password input and modification, buzzer alarm, reset circuit and crystal oscillator circuit with STC89C52 The single-chip microcomputer constitutes the smallest system of single-chip microcomputer. It has functions such as setting and modifying 6-digit user passwords, alarming for incorrect input, and alarming for incorrect passwords. This system is low in cost and practical in function.

Schematic PCB

OM13054: LPC-Link2

LPC-Link 2 is an extensible, stand-alone hardware debugger that can be configured to support a variety of development tools and IDEs using a variety of downloadable firmware. Additionally, it serves as an evaluation board in its own right for evaluating NXPLPC4370 triple-core MCU. Combined with the Embedded Artists add-on board, it can be used as an oscilloscope or logic analyzer!

Schematic PCB

CN0241

High-side current sensing with input overvoltage protection

Schematic PCB

20MHz handheld dual trace pocket oscilloscope based on TMS320F28033

With TMS320F28033 as the core, it is composed of signal amplification circuit, signal acquisition circuit, data storage and processing module, system control and display module and other parts.

Schematic PCB

Schematic diagram of RTL8306 switch

Schematic diagram and pcb of RTL8306 switch, where the schematic diagram is orcad and the pcb is ad10.

Schematic PCB

Bluetooth communication board based on BlueNRG-1

Bluetooth communication board based on BlueNRG-1

Schematic PCB

15kW Vienna-style three-phase rectifier with low-cost mixed-signal control for power factor correction

15 kW, three-phase Vienna rectifier with low cost mixed-signal control for power factor correction

Schematic PCB

Dual channel signal generator, manual welding

High reference value, the 50-year-old work of FatFS author ChaN

Schematic PCB

CN0260

Oversampled SAR ADC using PGA achieves over 125 dB dynamic range

Schematic PCB

CN0217

High-precision impedance measurement with 12-bit impedance converter

Schematic PCB

RDR-641 - 40 W variable output (3 V to 8 V, 5 A; 8 V – 20 V constant power) power supply using InnoSwitch3-Pro and Microchip PIC16F18325 microcontroller

Schematic PCB

Universal power line modem module based on ST7540 PLM and STM32 microcontroller

General purpose power line modem module based on the ST7540 PLM and STM32 microcontroller

Schematic PCB

Three-band infrared flame detector

When a substance burns, it produces smoke and heat, and also produces visible or invisible light radiation that is not found in the atmosphere. Flame detector, also known as photosensitive fire detector, is a fire detector used to respond to the light characteristics of fire, that is, to detect the light intensity of flame burning and the flicker frequency of flame. Infrared flame detector is a flame detector that is sensitive to the longer wavelength infrared light radiation in the flame. According to the different detection bands, it is divided into single band, dual band and three band.

Schematic PCB

An open source multimeter suitable for DIY

This project started with STM32F1 and now it uses STM32F3.

Schematic PCB

Design of bus passenger counting system based on infrared technology

    The system uses TI's MSP430F149 microcontroller as the core controller. This microcontroller has a 16-bit CPU integrated register and constant generator, which can maximize the code efficiency of the microcontroller. It integrates JTAG and supports online programming; two universal full-duplex Serial synchronous/asynchronous communication interface; PWM control output; external interrupt input interface. The microcontroller is responsible for sampling the bus door opening and closing signals, turning on or off the infrared counting module, recording the number of people getting on and off at each bus stop, storing the data on the number of people getting on and off at each bus stop, and transmitting the stored data to the computer.

Schematic PCB

Inverter drive circuit diagram + packaging schematic diagram

Special driver for fish machines, with totem variable drive

Schematic PCB

Protues simulation example (8051)-PCF8574 application.rar

Protues simulation example (8051)-PCF8574 application.rar

Schematic PCB

rpi-hq-camera: Connector for Raspberry Pi HQ camera

This design is a connector for the Raspberry Pi HQ camera.

Schematic PCB

MCIMX8M-EVK: i.MX 8M Applications Processor Evaluation Kit

MCIMX8M-EVK is an evaluation kit for i.MX 8MQuad, which provides high performance with high-speed interface and audio and video functions.

Schematic PCB