Ultrasonic-based distance meter (including schematic diagram, program source code and related debugging instructions)

Detailed description: Ultrasonic range finder (including schematic diagram, program source code and related debugging instructions, as well as some reference materials, in short, a complete set of information for developing ultrasonic range finders)

Schematic PCB

ESP32-CAM-WEB camera

Modified from the ESP32 Arduino routine "CameraWebServer" 1. Treat ESP32 as a web server. You can see the camera monitoring screen and control it through browser access. 2. Mainly change the web page from English to Chinese and delete some functions. 3. Added control functions for servos, motors, relays, and LEDs. 4. Through this program, you can easily create a wireless reconnaissance robot with ESP32.

Schematic PCB

QR code recognition source code based on STM32 + QR code decoding library lib

QR code recognition source code based on STM32 + QR code decoding library lib

Schematic PCB

Hardware circuit realizes SPI to Ethernet 10BASE-T

It introduces in detail how to build an SPI to 10BASE-T to realize network data sending and receiving. 10BASE-T uses two differential pairs: one for transmission and one for reception. Each pair is coupled through a transformer and the signals are differential and Manchester encoded. All schematics and diagrams are open.

Schematic PCB

2017 National College Student Electronic Design Competition_Microgrid Simulation System (Question A) Design Report_National Second

Schematic PCB

Blood pressure monitor design based on MSP430F149

Based on the blood pressure monitor design of MSP430F149, the project file may not be opened. Please create the project by yourself and add several other *.c *.h files at a time according to the file names contained in the main file. There may be some problems with the final result, but the basic idea is correct. If you modify it a little, you should get the correct result.

Schematic PCB

2018 Electronic Competition Question A-Current Signal Detection Device (Sichuan University of Electronic Science and Technology)

Schematic PCB

Design of armed police sentry linkage alarm system based on STM32, supporting Ethernet and WIFI communication (hardware, source code, papers, etc.)

The armed police alarm information system terminal proposed in this article can realize alarm and linkage response, supports two communication modes of Ethernet and WIFI, and can realize mobile sentry alarm and fixed sentry alarm. The voice and display alarm information can be customized by users.

Schematic PCB

AUTOSAR_Fee implementation source code

Schematic PCB

2017 National College Student Electronic Design Competition Question H-Remote Amplitude and Frequency Characteristics Tester-Paper

Schematic PCB

2018 Electronic Competition Question A-Current Signal Detection Device (Qingdao University of Technology)

Schematic PCB

C language program for stepper motor controlled by 51 microcontroller

C language program for stepper motor controlled by 51 microcontroller

Schematic PCB

Freescale smart car source code photovoltaic group (with comments)

Freescale smart car smart car source code photoelectric group (with comments)

Schematic PCB

2017 Electric Power Competition Question A-Microgrid Simulation System-National First Report + Schematic Diagram + Simulation Document (Changsha University of Science and Technology)

Schematic PCB

Open source writing machine design

The author introduces the classic corexy structure writing machine.

Schematic PCB

Obstacle measuring car

A car with intelligent judgment function is designed and produced. The car has the following functions: automatic obstacle avoidance function; tracking function (driving according to the black track on the road); phototaxis function (finding the point light source in front and driving in place); It has the function of detecting the number of iron pieces placed on the road surface; it calculates and displays the distance traveled and the walking time, and can make sounds and light up. The work can be used as a high-end smart toy, or as a powerful application example for college students to learn embedded control.

Schematic PCB

TI smart socket

WIFI remote can control the socket and monitor power consumption, etc. It has similar functions to Xiaomi smart socket, using TI's MSP series microprocessor as the main control.

Schematic PCB

Open source smart cooling plate design based on PIC16F17146

Schematic PCB

DM9000 EMI test circuit reference

DM9000 EMI test circuit reference

Schematic PCB

Smart home control system based on STM32L432

Smart home control system, with embedded source code and Android source code

Schematic PCB