Ultrasonic ranging based on stm32

Ranging through the ultrasonic module, stm32 is transmitted to OLED through IIC protocol

Schematic PCB

Smart home control system based on STM32L432

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

Schematic PCB

Complete solution for smart car design

Complete solution for single-chip smart car, circuit diagram, source code, and papers.

Schematic PCB

STM8S903 electric controller program and PCB

PCB: EB712ST-LX03-120327 The program has not been verified and looks poorly written. The PCB is worth reference.

Schematic PCB

Robotic arm comprehensive project: the source code of a complete steering gear controller

This source code is based on the C language code of stm32f103 and is the source code of a complete robotic arm control project.

Schematic PCB

Two-wheeled self-balancing trolley msp430g2553

It has been verified that the car can stand upright after adjusting the parameters.

Schematic PCB

AVR moves left, moves right, increments and decreases water flow light

AVR moves left, moves right, increments and decreases water flow light

Schematic PCB

Fingerprint password lock based on 51

This design developed a fingerprint recognition electronic password lock system based on a single-chip microcomputer. The system uses STC89C52 microcontroller as the core of the module. It controls the ZFM-60 fingerprint module through serial communication to register fingerprints and store fingerprint data. It displays the comparison process and results through the HS12864-15C LCD, supplemented by DC relays and light-emitting diodes to simulate unlocking. Actions. This system has small size, high cost performance, fast transmission speed, and is suitable for families and organizations.

Schematic PCB

Discrete ultrasonic range finder

This program can realize the ultrasonic ranging function, and has functions such as LCD display, serial port output, and changing range.

Schematic PCB

Anonymous four-axis sharing useful information

Micro four-axis, complete design, anonymous small four-axis dry information sharing.

Schematic PCB

Tracking car + simulation

Tracking and obstacle avoidance based on proteus.

Schematic PCB

Biped robot source code

The source code is written by myself as a C program. The robot does not walk very smoothly and requires the joint efforts and improvement of robot enthusiasts.

Schematic PCB

51 microcontroller electronic keyboard design

Electronic keyboard design based on 51 microcontroller.

Schematic PCB

STM32 automatic fire extinguisher (with steering gear)

It can realize automatic search for fire sources and automatic obstacle avoidance functions.

Schematic PCB

Smart car (ultrasonic, Bluetooth, infrared)

The smart car based on AT89C82 can realize ultrasonic obstacle avoidance, infrared obstacle avoidance, Bluetooth and infrared remote control car control and automatic tracking.

Schematic PCB

Thermometer MLX90615-STC89C52

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

Schematic PCB

Heart-shaped running water lamp program and circuit

Heart-shaped running water lamp program and circuit.

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

Kalman filter balancing car source code

Kalman filter balancing car source code is available for personal testing

Schematic PCB

Real-time clock made by STC90C54RD+SD2405ALPI

I have an SD2405ALPI-G on hand, and I happen to have an STC learning board, so I made a clock with an annual error of about 2.5 minutes to play with. The schematic and program are all there. Now the hardware has a ringtone generating chip and a power amplifier chip, but the program has only initially implemented the function of displaying the day of the week, hours, minutes and seconds. It will be changed to an alarm clock when there is time.

Schematic PCB