51 single chip electronic thermometer

51 single chip electronic thermometer

Schematic PCB

Designing electronic password lock using PIC microcontroller

This article introduces the electronic code lock made with PIC16F84 microcontroller. The PIC16F84 microcontroller has a total of 18 pins and 13 available I/O interfaces. The chip has a 1K×14 FLASHROM program memory, a 36×8 static RAM general register, a 64×8 EEPROM data memory, and an 8-level deep hard stack.

Schematic PCB

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

Using single-chip microcomputer AT89C51 to transform ordinary double-tub washing machine

Ordinary double-tub washing machines have a large number of users because of their low price and durability. However, as people's pace of life accelerates, there are many inconveniences when using this kind of washing machine to wash clothes: you need to add water before washing clothes, which takes about 2 to 3 minutes. Many friends can't stand the "torture" of time and go about other things. They often forget to turn off the water, causing a lot of waste. When washing clothes, turning the timer can usually wash for up to 15 minutes. Most users don't do this process. He will stay by the washing machine. When the timer ends, he cannot time the time or rinse again in time. Sometimes he even forgets how long he has been washing, which greatly prolongs the washing time. He cannot leave people while rinsing. Someone must be involved in the whole process. Very inconvenient. This article introduces a method of using the AT89C51 microcontroller to transform an ordinary double-tub washing machine. After the transformation, the entire process of water inlet, washing, rinsing, and drainage can be completed automatically. Multiple washing and rinsing methods can be selected, and single washing, single rinsing, and Manual function, very convenient.

Schematic PCB

Intelligent non-contact infrared electronic thermometer with voice broadcast

The program is written in C language and contains MLX90614 temperature measurement, OLED driver, and 4004-8 voice chip driver. The entire system is user-friendly. The user can choose voice broadcast or OLED display, low temperature or over-temperature alarm, and forehead skin function. Conversion formula from temperature to real body temperature (the formula has been verified by actual measurements and has high accuracy). The entire system has been verified to be feasible, and the measurement results were compared with electronic thermometers on the market, with an accuracy higher than 98%.

Schematic PCB

Fully automatic washing machine program and circuit diagram

Fully automatic washing machine program and circuit diagram

Schematic PCB

51 microcontroller countdown 120 seconds C program

51 microcontroller countdown 120 seconds C program

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

Laptop camera face recognition program

Open the laptop's built-in camera through matlab and detect faces.

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

Make your own smart home wireless alarm with AT89C2051

Use AT89C2051 to make your own smart home wireless alarm.

Schematic PCB

Multifunctional mini computer (SD, wifi, OLED)

Multifunctional mini computer (SD, wifi, OLED) design source code and related test programs

Schematic PCB

Nuvoton NUC501 MCU micro thermal printer solution circuit diagram and source code

The composition and working principle of the micro thermal printer based on NUC501MCU are analyzed in detail, and the design and implementation of thermal head overheat protection and stepper motor drive module are given.

Schematic PCB

Double self-balancing trolley

Double self-balancing trolley stm32

Schematic PCB

Small quadcopter DIY

IAP15W4K58S4-Small quadcopter DIY

Schematic PCB

Design program of password lock based on microcontroller

51 microcontroller password lock LCD display

Schematic PCB

MSP430F149+1602 digital display and real-time clock

MSP430F149+1602 digital display and real-time clock

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 microcontroller infrared decoding data + source code

51 microcontroller infrared decoding data + source code

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