Mouse circuit diagram, PCB and source code based on CY7C63723/CY7C63722 chip

Mouse circuit diagram, PCB and source code based on CY7C63723/CY7C63722 chip

Schematic PCB

Realizing LED reading of remote control key values ​​based on microcontroller (program and circuit diagram)

Microcontroller realizes the program of LED reading remote control key value

Schematic PCB

Snake based on microcontroller (schematic PCB source program simulation file)

The microcontroller production contains schematic pcb diagram source program simulation files

Schematic PCB

Intelligent LED desk lamp design based on microcontroller_with circuit diagram, finished product demonstration diagram, and source program

This article introduces the framework structure and component modules of the design as well as the principles of each module. It also introduces the hardware design of each part, the software design of each part, and the software flow chart. The design is an intelligent LED desk lamp integrating multiple functions with STC89C52 microcontroller as the control core. The desk lamp realizes the function of automatically detecting whether there is someone in the room and automatically turning on/off; the desk lamp brightness has an adjustment function; it has a time display function; it has a temperature display function; and it has an alarm function. The hardware design is divided into eight parts, including the microcontroller control module, button module, desk lamp module, temperature module, clock module, alarm module, display module, and infrared sensing module. The microcontroller control uses STC89C52, the display module uses LCD1602C liquid crystal to display temperature, time, date, etc., the button module is used to adjust time, date, LED brightness, etc., the clock uses DS12C887 clock chip, and the desk lamp module uses 16 LEDs and uses a buzzer. The device emits an alarm sound, the temperature sensor uses a DS18B20 chip, and the human detection device uses a BIS0001 infrared thermal sensor. The software design is written in microcontroller C language and realizes all control functions.

Schematic PCB

Computer USB-based massager (including schematic diagram and source program download)

Including schematic diagram and source program download, the microcontroller is PIC12F629.

Schematic PCB

Single-chip wireless dual-display answering machine based on AT89S51 (with papers, circuit diagrams, and C language programs)

This design is a system built using AT98C51 microcontroller. The wireless answering terminal uses a combination of PT2262 transmit encoding chip + F05P transmit module (including thesis description, circuit diagram, and C program are complete)

Schematic PCB

51 Make a perpetual calendar (schematic diagram, program)

51 Make a perpetual calendar (schematic diagram, program)

Schematic PCB

Design of dual-tone doorbell circuit based on 555 timer

Design of dual-tone doorbell circuit based on 555 timer

Schematic PCB

Design and implementation of MP3 player based on STM32 (MDK complete source code provided)

A design example of implementing a simple MP3 Player using an STM32 processor. This comprehensive application example helps readers understand the applications of STM32, SPI interface, SD card, TIMER, interrupts, FAT file system, USB, etc.

Schematic PCB

Four-channel radio remote control schematic diagram

Four-channel radio remote control schematic diagram

Schematic PCB

Design and production based on lithium battery charger_with schematic diagram and PCB

Since my four-wheel drive robot is powered by a 16.5V lithium battery, and there is no charger for this battery on the market, I am very confused about charging it. In desperation, we designed a portable and simple lithium battery charger. Solve the trouble of charging. The charger can output an adjustable charging current of 100mA-1A. The input voltage is VIN>18V, and it can be charged with the 19V voltage on the laptop. Charging time is generally determined according to the size of the charging output current.

Schematic PCB

Digital photo frame source code (AT76C120+CT956)

Digital photo frame source code (AT76C120+CT956)

Schematic PCB

Source program based on 51 microcontroller multifunctional smart desk lamp (with clock, posture correction, display temperature and brightness)

Function description: 1. After power on, the LED light lights up, which means that the current light is in automatic control mode; 2. You can switch back and forth between automatic and manual modes through button K5; 3. In manual mode, buttons K2, K3, and K4 correspond to A light brightness; (unavailable when k1 is pressed) 4. In automatic mode, it must first detect someone before automatically controlling the brightness, otherwise the desk lamp will go out. You can block the light of the photoresistor, or use a flashlight to illuminate the photoresistor to simulate changes in lighting, so that you can see that the brightness of the desk lamp will change as the light intensity in the environment changes. The effect is that the weaker the light, the brighter the desk lamp. . If the human body sensor cannot detect anyone for 1 minute, the desk lamp will automatically turn off. (The photoresistor is behind the USB lamp); 5. Whether it is automatic mode or manual mode, the brightness is divided into 10 levels, and 0-9 is displayed on the LCD; 6. Set date and time: Press K1 (setting ) key, the cursor will flash at the displayed year position, indicating that the year can be adjusted at this time. If you need to adjust the year, press K3 (plus) and K4 (minus) to adjust the year. Then press the K2 (move) key, and the cursor will flash when the month position is displayed. The month can be adjusted in the same way. Press the K2 key again to set the day, hour, minute, and second respectively. 7. When approaching the ultrasonic wave, the buzzer will alarm.

Schematic PCB

Anonymous small four-axis code

Anonymous small four-axis code

Schematic PCB

Protues simulation example (8051) - playing music

Protues simulation example (8051) - playing music

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

stc15w4k58W plays WAV files

stc15w4k58W plays WAV files

Schematic PCB

Outdoor environment detection device based on the Internet of Things (STM32, APP, WIFI).zip

This article develops and implements a WiFi module based on STM32 on an embedded development platform. Combined with the above new concepts of the Internet of Things, it enables users to monitor the environment in real time through the network. This system enables users to grasp and control the situation they want to know in real time. Home information (temperature and humidity information, light information, PM2.5) is obtained through various sensors, and users can control this information on the Android interface.

Schematic PCB

USB HID keyboard, mouse and game controller based on stm32 and mpu9250.zip

USB HID keyboard, mouse and game controller based on stm32 and mpu9250.

Schematic PCB

Satellite GPS path recorder based on STM32 (with complete source code)

Satellite GPS path recorder based on STM32 (complete source code attached).

Schematic PCB