Complete solution for smart car design

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

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

Fully automatic washing machine design

This article designs a fully automatic washing machine control system with the AT89C51 microcontroller as the core. This system realizes the control of the entire washing process of the washing machine, including the four stages of user program input, washing, dehydration and end alarm. Laundry control system based on AT89C51 microcontroller, the control panel consists of buttons, indicator lights and LCD display. The buttons select the working mode of the washing machine and the start and pause functions. The indicator lights work with the buttons, and the LCD display shows the working mode of the washing machine. The overall circuit module of the washing machine includes four independent keyboards, indicator lights, motor control and LCD display.

Schematic PCB

Traffic light control system based on 51 microcontroller

With timing settings, night mode, manual control and other functions

Schematic PCB

E-books based on Raspberry Pi microcontroller

This time it’s an e-book based on the Raspberry Pi.

Schematic PCB

Infrared remote control Proteus simulation circuit transmitting and receiving program

Infrared remote control Proteus simulation circuit transmitting and receiving program

Schematic PCB

51 Make a perpetual calendar (schematic diagram, program)

51 Make a perpetual calendar (schematic diagram, program)

Schematic PCB

GPS/GPRS logistics protocol vehicle terminal source program based on NXP LPC2387+UCOS-II

Version V0.2 Completed and verified functions: 1.GPS receiving function 2. Self-detection function 3. Login to server function 4. Reconnect to server function

Schematic PCB

2021 College Student Electronic Design Competition Topic A Outstanding Works Collection (Signal Distortion Measurement Device)

Schematic PCB

STM32 automatic fire extinguisher (with steering gear)

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

Schematic PCB

51 microcontroller electronic keyboard design

Electronic keyboard design based on 51 microcontroller.

Schematic PCB

Aeroh One: Crackable IR remote control based on esp32-c3 (schematic diagram and source code, etc.)

Aeroh One is a hackable infrared remote control pad that turns any remote control device into a connected device. It will support Alexa, Google Assistant, Apple Siri, iOS/Android App and IFTTT integration. The Aeroh One is compatible with most remote controls that operate via infrared.

Schematic PCB

esp32 TFT color screen projection

The color screen projection assistant uses the tcp protocol to send the computer screen to esp32 for processing and display in real time, with a theoretical frame rate of more than 10 frames

Schematic PCB

Electric vehicle charger source program based on ATmega48PA chip, including PCB board

The charger program written with STM8S003 has positive and negative pulses throughout the process, anti-reverse connection, scheduled shutdown during charging, and negative pulses to repair the battery later.

Schematic PCB

Hamster Mix: Portable open source Bluetooth MIDI controller with Arduino and ESP32 (schematics, source code, etc.)

Hamster Mix is ​​a portable MIDI controller powered by Arduino that connects to MIDI via Bluetooth. It allows you to control effects and play MIDI notes in 5 octaves. Twelve keys and the ability to switch up and down through the octave make it easy to control the notes of an entire keyboard piano using our compact controller (about the size of a hamster). Hamster Mix connects to Mac, PC, Ipad and even mobile phones via Bluetooth. You can control any MIDI-enabled music program such as Ableton, Garage Band, FL Studio, Reaper, etc. Two additional buttons and two potentiometers allow you to set up your own custom effects. You can even use the buttons as a Bluetooth track launcher instead of a keyboard. You can control MIDI-enabled mobile applications such as GarageBand, FL Studio Mobile, Reason Compact, Audiokit Synth One, Moog applications, and more. Make music on the go with Hamster Mix, which fits in your pocket, meaning no wires or bulky equipment.

Schematic PCB

Digital voltmeter based on microcontroller (circuit diagram)

Digital voltmeter based on microcontroller (circuit diagram)

Schematic PCB

Quadrotor aircraft paper (schematic diagram + program)

This content introduces the schematic design and related procedures of the quadcopter in detail, which is great.

Schematic PCB

2019 Electronic Competition H Question-Simulated Electromagnetic Curved Cannon (Henan University of Science and Technology)

Schematic PCB

Newt: a low-power, open-source, 2.7-inch IoT display powered by the ESP32-S2 module and powered by Sharp’s Memory in Pixel (MiP) screen technology

Newt is a battery-operated, always-on, wall-mounted display that can retrieve weather, calendars, sports scores, to-do lists, quotes...anything on the internet! It is powered by the ESP32-S2 microcontroller and you can program it using Arduino, CircuitPython, MicroPython or ESP-IDF. We think Newt is the next step in the evolution of low-power display panels. Sharp's Memory in Pixel (MiP) technology is ideal for manufacturers, avoiding the slow refresh times associated with E-Ink displays. To support timers and alarms, we also added a real-time clock (RTC). Finally, we designed the Newt with battery operation in mind—every component on the board was chosen for its ability to run with low power consumption.

Schematic PCB

MSP430F149+1602 digital display and real-time clock

MSP430F149+1602 digital display and real-time clock

Schematic PCB