Waveform generator including schematic diagram + circuit diagram + program

The microcontroller uses MCS-51 series 89C51 (one piece), 74LS244 and 74LS373 (one piece each), inverting driver ULN2803A (one piece), and operational amplifier LM324 (one piece)

Schematic PCB

4-axis flight control based on MEGA328 (Bluetooth and remote control version) source code

The source code has not been verified, using C language, AVR microcontroller

Schematic PCB

51 microcontroller touch desk lamp

Touch table lamp made by 51 microcontroller

Schematic PCB

camera smart car

2014 Smart Car Competition Camera Smart Car Program

Schematic PCB

51 microcontroller TCP-IP+ protocol stack ZLIP source code

Realizing network communication using limited resources on 51 microcontroller platform

Schematic PCB

Eduponics Mini: ESP32-powered smart agriculture IoT kit with user-customizable mobile app

STEMinds Eduponics Mini is a smart agriculture and IoT board. With an ESP32 module at its core, Eduponics Mini features an array of built-in sensors - including temperature, humidity, air pressure, ambient light, water and soil moisture sensors - that work together to make smart farming simple and affordable. It supports Wi-Fi and Bluetooth connectivity and consumes very little power, making it ideal for real-world IoT applications. We believe that high-quality industrial IoT and smart agriculture technology should be accessible to everyone, not just those with significant resources and technical expertise. Using MicroPython or the Arduino IDE, you can design your smart garden in no time. We've collected all the documentation you need to guide you step by step into the world of electronics and programming.

Schematic PCB

Open source calculator CG-35, RPN calculator similar to HP-35

Schematic PCB

2018 Electronic Competition Question D-Gesture Recognition Device (Guangxi Guilin University of Electronic Science and Technology)

Schematic PCB

High-precision digital display counter

In industrial control, it is often necessary to count and measure products to achieve automatic control of equipment. This article introduces a method of making a counter that can set the count value arbitrarily within the display range. Moreover, the current count value, set value, and magnification value will not be lost when power is turned off. It is compatible with a variety of input signals and has a magnification accuracy of up to 5 digits. It is easy to use, stable and reliable, and can be widely used in machine tools, rubber, printing, pharmaceuticals, and cables. , textile, complete sets of control equipment and other industries.

Schematic PCB

Esai source code Smart energy-saving home manager based on MSP430

Esai source code Smart energy-saving home manager based on MSP430

Schematic PCB

EtherCAT communication development platform based on ARM processor-schematic diagram

Schematic PCB

Intelligent voice recognition obstacle avoidance robot

Speech recognition + robot + ultrasonic ranging comprehensive application solution

Schematic PCB

Speeduino Open Source ECU: Arduino-based engine management

The Speeduino project is a flexible, fully-featured engine management system (EMS aka ECU) based on the low-cost open-source Arduino platform. It provides the hardware, firmware, and software components that make up an engine management system, all under an open license. With over 1,000 installations, Speeduino has evolved into a product that meets the needs of the hobbyist and enthusiast community without the price tag of a traditional aftermarket ECU.

Schematic PCB

Esai source code biofuel and gutter oil rapid detector

Esai source code biofuel and gutter oil rapid detector

Schematic PCB

Intimate Photo Frame - Network weather digital photo frame based on STM32H745

Schematic PCB

usb keyboard and mouse dual use source code

Schematic PCB

Kalman filter balancing car source code

Kalman filter balancing car source code is available for personal testing

Schematic PCB

Kalman filter version of balancing car source code

Schematic PCB

Oscilloscope source code based on stm32f4

A good source code for stm32f4 oscilloscope, which can use 3-channel ADC to measure waveforms and display the waveforms on the screen and also display the amplitude.

Schematic PCB

Protues simulation example (8051)-PWM temperature adjustment.rar

Protues simulation example (8051)-PWM temperature adjustment.rar

Schematic PCB