Simple and practical fully automatic hand dryer

The author has designed a circuit controlled by a microcontroller, and can easily create an automatic hand dryer with a commonly used hair dryer. In addition to the above functions, it also has flashing lights and crisp audio prompts.

Schematic PCB

MSP430 microcontroller controls tank target shooting C language source code

MSP430 microcontroller controls tank target shooting C language source code

Schematic PCB

51 single chip electronic thermometer

51 single chip electronic thermometer

Schematic PCB

NUVOTON Wireless Charging Reference Solution

Schematic PCB

Intelligent time control switch based on 51 microcontroller 12232 display

This product has been verified for use and is the best stable program after debugging.

Schematic PCB

2018 Electronic Competition Question D-Gesture Recognition Device (Shandong University)

Schematic PCB

(Third Prize in ST Competition) Ultrasonic Selfie Artifact

(Third Prize in ST Competition) Ultrasonic Selfie Artifact.

Schematic PCB

Magnetic levitation system based on STM32F407

Support revolution, fixed height, side floating

Schematic PCB

2018 Electronic Competition Question D-Gesture Recognition Device (First Prize in Hebei Province)

Schematic PCB

Electronic clock (with temperature measurement function) with schematic diagram and source program

Electronic clock (with temperature measurement function) based on 51 microcontroller comes with schematic diagram and source program. The main functions include: time, alarm clock, hourly time, and temperature.

Schematic PCB

ANT BBPS: A small, portable and elegant open source OLED breadboard power supply (schematic, source code)

ANT BBPS displays voltage, current and power on an OLED display. It features digitally controlled current limit, wide input voltage range and up to 12 V DC output. It also has two input connections, a USB type-C connector and a screw terminal. A USB input means a battery pack can easily be used as your power source, and the screw terminals allow any other input source to be connected, such as AA and 9 V batteries, or even that old 7 V wall adapter you might have lying around.

Schematic PCB

Thermometer MLX90615-STC89C52

Very good reference document. MLX90615 communication value, lcd1602 display, 51 driver

Schematic PCB

ANAVI Macro Pad 2: Open Source Programmable Two-Button Mechanical Keyboard with Backlight

Every key on the ANAVI Macro Pad 2 can be reprogrammed to be used as a macro or even as a dedicated shortcut key, making it ideal for many applications in a variety of industries.

Schematic PCB

1km radio controller

Powerful 1km 6-10 channel remote control, suitable for DIY projects such as drones and cars.

Schematic PCB

Based on AT89S51 digital electronic code lock

Digital electronic combination lock. Based on chip AT89S51. Choose LED to display the results. Contains circuit diagram

Schematic PCB

100w mono audio amplifier board DIY 2SC5200

This is a 100w mono audio amplifier board. This project can easily play speakers up to 100w. I used two 2SC5200 transistors and a 30-0-30 transformer in this project

Schematic PCB

Jiabao based on eps32c3

Schematic PCB

SmartLED Shield for Teensy 4: Drive high-quality graphics to your HUB75 RGB matrix panel with Teensy4

Want to add lots of LEDs to your Arduino project? HUB75 RGB panels are a great way to do this as they are much cheaper than addressable Neopixel/WS2812 LEDs (typically 10% of the cost per LED). They are also available in a range of pixel densities (from 2mm to 10mm pitch) to better suit your project needs. However, using a microcontroller to display high-quality graphics on a HUB75 panel is complicated because the panel requires precise timing and constant refreshing of pixel data. That's where Teensy 4's SmartLED Shield comes in.

Schematic PCB

A handheld game console powered by a small battery based on STM32H757 (can run Red Alert, etc. smoothly, and supports simulator operation)

gk is a small battery-powered handheld game console based on an STM32H757 microcontroller (600 MHz) and 128 MiB XSPI SDRAM.

Schematic PCB

Snake design based on UCOS system ARM9 hardware platform

University embedded course design, based on UCOS real-time operating system! I hope to be helpful!

Schematic PCB