2019 National Electronic Design Competition Title A Province One Code (Dynamic Wireless Charging System for Electric Cars)

Schematic PCB

2020 Electronic Competition Question F-Simple non-contact temperature measurement and identification device (Anhui Division)

Schematic PCB

51 car automatic tracking program source code

51 car, automatic tracking, source code

Schematic PCB

Wee Noise Makers PGB-1: Open Source Audio Synthesizer

Schematic PCB

NUVOTON Wireless Charging Reference Solution

Schematic PCB

Protues simulation example (8051)-PWM control motor method.rar

Protues simulation example (8051)-PWM control motor method.rar

Schematic PCB

2019 Electronic Competition Question A-Wireless Charging Car Design Plan and Report (National First, Hohai University)

Schematic PCB

2019 Electronic Competition Question C-Circuit Load and Fault Detection Device-Design Report (National Secondary School, Southeast University)

Schematic PCB

Open source planet exploration vehicle releases V2.0 version

Schematic PCB

Autonomous inspection balancing car based on M4

The main function is to set a certain route for the inspection vehicle through the host computer (the host computer gives coordinate points), and the inspection vehicle can inspect according to the prescribed path.

Schematic PCB

Digital capacitance meter made with AT89C2051 microcontroller

As a simplified version of AT89C51, AT89C2051 removes P0, P2 and other ports, reducing the number of I/O ports. However, it adds a voltage comparator, so its functions are enhanced in some aspects. For example, it can be used to process analog Quantity, simple analog-to-digital conversion, etc. This article uses this function to design a digital capacitance meter, which can measure the capacity of capacitors with a capacity less than 2 microfarads. It uses a 3-and-a-half-digit digital display. The maximum display value is 1999. The reading unit is uniformly nanofarads (nf), and the measuring range is divided into In the fourth gear, the readings are multiplied by the corresponding magnification.

Schematic PCB

BeanCounter: Simple, battery powered, pocket-sized open source parts counter for 8mm cut tape and partial reels (schematics, source code, etc.)

BeanCounter is a pocket-friendly SMT parts counter. Powered by a CR2032 coin cell battery, it uses two infrared photointerrupters to count parts as quickly as possible. It works with any opaque, 8 mm wide carrier tape up to 2 mm, and it covers most 0805 or smaller LEDs and passives, as well as SOT23 transistors.

Schematic PCB

Vision FPGA SoM: FPGA-based SoM with integrated vision, audio and motion sensing capabilities

Embedded computer vision is a highly multidisciplinary field that requires expertise in optics, image sensors, hardware, firmware, and more. Therefore, the barriers to using technology in this field are quite high. The Vision FPGA SoM is a Lattice FPGA-based system-on-module that integrates an ultra-low power vision sensor, 3-axis accelerometer/gyroscope and I²S MEMS microphone in a small form factor (3 cm x 2 cm).

Schematic PCB

Develop data acquisition system using SPCE061A

Using SPCE061A to develop a data acquisition system has great market prospects. First of all, its easy-to-learn and easy-to-use programming voice and development environment allow beginners to get started quickly; secondly, it has a modular structure and built-in 7-channel 10-bit AD, simplifying the user's circuit design; thirdly, it has voice Recognition and audio processing functions allow users to develop more intelligent products

Schematic PCB

ANAVI Gardening uHAT: open source smart gardening based on Raspberry Pi

ANAVI Gardening uHAT is a low-cost, open-source Raspberry Pi add-on board that helps you develop smart solutions for monitoring and growing plants. ANAVI Gardening uHAT supports multiple sensors for soil moisture, temperature, humidity, air pressure and light. Getting started is easy: Just plug it into your Raspberry Pi with your bare hands and follow the instructions in the user manual. No welding required and no tools required.

Schematic PCB

Robo HAT MM1: Open Source Robotics and Automation Controller for Raspberry Pi

obotics Masters Robo HAT MM1 is an open source robot controller board for the Raspberry Pi. It has an education focus but is suitable for many applications. Robo HAT provides all the hardware you need in one easy-to-use form factor. It removes the initial barriers to starting any robotics project. With support for Adafruit CircuitPython, the Arduino IDE, and other libraries, Robo HAT serves as a single solution for all projects, big or small. The Robo HAT MM1 eliminates the need to purchase a large number of individual components by including them on the board. It can act as a PWM driver, provide onboard power via a voltage regulator, and measure motion using an onboard IMU - all at the same time. Broad compatibility with many open source software platforms such as CircuitPython, SeeSaw and the Arduino IDE means you can use all existing sensor software while creating your project in a way that works best for you. The hardware schematics and software are completely open source.

Schematic PCB

Intelligent access control system

Intelligent access control system, perpetual calendar display, remote control switch, door power failure, storage record of the number of people entering and exiting

Schematic PCB

kicad USB splitter: a three-way USB splitter for personal design and use

A simple USB switch so I can swap a keyboard or mouse between two computers.

It is operated by 4 single mechanical switches, 1 for each channel. Simple designs can be implemented.

Schematic PCB

2019 Electronic Competition Question B-Line Patrol Robot (Henan Division)

Schematic PCB

Fully automatic water tank timing water supply circuit

The circuit in this design can control the automatic operation of the water pump motor according to the water level in the water tank and the set time. It has been used for more than a year and has excellent anti-interference and stability. Now I will introduce it to peers and microcontroller enthusiasts. The specific circuit is divided into four parts: microcontroller circuit, power supply circuit, water tank circuit and motor control main circuit.

Schematic PCB