1.5V~30V 3A adjustable switching power supply circuit schematic + PCB information

1.5V~30V 3A adjustable switching power supply circuit schematic + PCB information

Schematic PCB

Smart car schematic diagram + PCB diagram (formerly the second prize in the national award)

Smart car schematic diagram + PCB diagram (formerly the second prize in the national award)

Schematic PCB

Low-power STM32F411 development board (schematic diagram + PCB source file + official routines + driver, etc.)

Low-power STM32F411 development board (schematic diagram + PCB source file + official routines + driver, etc.)

Schematic PCB

License plate recognition control board schematic + 3D PCB

Share license plate recognition control board schematic + 3D PCB

Schematic PCB

ST7567LCD complete driver source code schematic diagram based on STM32F103 lighting effect diagram

ST7567LCD complete driver source code schematic diagram based on STM32F103 lighting effect diagram

Schematic PCB

Hall sensor (instruction document + schematic diagram + chip information + simulation circuit + program).rar

Taking a common toy motor as the speed measurement object, use CS3020 to design a signal acquisition circuit, and realize the output of counting pulses through a voltage comparator. The rotation speed can be measured in the microcontroller experimental box, or the output can be directly connected to a frequency meter or pulse counter, and we get The number of pulses per unit time can be converted to get the motor speed.

Schematic PCB

Steering gear control module (scheme design + schematic diagram).rar

Steering gear control module (scheme design + schematic diagram)

Schematic PCB

Infrared remote control alarm (schematic + PCB diagram + program + documentation).rar

The infrared controlled temperature alarm produced for this competition took half a month to make. It is a simple device made of AT89S52 with LCD 12864 as the display platform, including infrared remote control, temperature measurement, time display, alarm reminder and picture browsing. Infrared controlled temperature sensor.

Schematic PCB

DC motor drive (solution design + chip information + schematic diagram)

DC motor drive (solution design + chip information + schematic diagram)

Schematic PCB

Pyroelectric module (chip information + module schematic diagram)

Pyroelectric module (chip information + module schematic diagram)

Schematic PCB

Filter circuit (various design solutions + schematic diagram).rar

Filter circuit (various design solutions + schematic diagram)

Schematic PCB

Humidity sensor (design plan + schematic + program + chip information).rar

Humidity sensor (design plan + schematic diagram + program + chip information)

Schematic PCB

Temperature and humidity sensor module (schematic + program + documentation).rar

Temperature and humidity sensor module (schematic + program + documentation)

Schematic PCB

Wireless transceiver module (solution design + schematic diagram)

Wireless transceiver module (solution design + schematic diagram)

Schematic PCB

Vibration sensor (module information + program + schematic diagram + documentation)

Vibration sensor (module information + program + schematic diagram + documentation)

Schematic PCB

Through-beam sensor (schematic + simulation + program + documentation).rar

Through-beam sensor (schematic + simulation + program + documentation)

Schematic PCB

Sound sensor (module information + program + schematic diagram).rar

Sound sensor (module information + program + schematic diagram)

Schematic PCB

Photoelectric isolation module (schematic + scheme design).rar

Photoelectric isolation module (schematic + scheme design)

Schematic PCB

Photosensitive sensor (schematic diagram + program + chip information)

Photosensitive sensor (schematic diagram + program + chip information)

Schematic PCB

Color sensor TCS230 module (program + chip information + schematic diagram)

Color sensor TCS230 module (program + chip information + schematic diagram)

Schematic PCB