51 Single Chip Microcomputer is a single-chip microcomputer that is introduced, or is the most widely used. Therefore, there are classics based on 51 single-chip design, classic is alive, how to design more classic works on the classic basis should be a new goal of single-chip fans, and summarize 10 different aspects based on 51 single-chip design Design, how to play with how to play 51, how to play!
1,51 single-chip N76E003 remote control DIY completely open source PCB, Keil Engineering Source
Mars Technology Independent Design 51 Kernel New Tang N76E003 Six-Channel Remote Control, supports two-way communication, support voltage collection return, low power alarm, equipment loss alarm, equipment low power alarm, OLED display UI display, manual pair of frequencies, Fully function, stable testing. It can be used for wireless remote controls such as drone, boat, trolley, robot.
Project link: https://www.cirmall.com/circuit/9305#/details
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2, based on 51 single-chip PID constant temperature heating system (App Optional Control)
Function Description:
1. Adopt the enhanced 51 single-chip STC12C5A60S2 single-chip microcomputer as the main control, the buzzer, LCD1602 liquid crystal, etc.
2. nTC thermistor as a temperature sensor;
3. The control temperature portion is heating control temperature, using thyristor controlled heat to heat the rod heating;
4. The constant temperature heating control portion is controlled by the PID algorithm;
5. Add a WiFi module, as a hotspot, after connecting to the mobile phone, can use the APP to set the heating temperature value, and alarm value;
Project Link: https://www.cirmall.com/circuit/9351#/details
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3, laser engraving machine based on 51 single-chip microcomputer, including host machine and 51 source code
I have been looking for the 51 single-chip engraving machine information based on the CD-ROM drive recently. I have seen a lot of laser engraving machines that remove the optical drive DIY is based on Arduino, just find a related, based on the tutorial of the 51 (89C52RC) microcontroller, thank you The sharing of the original author, lending the flowers, and sharing a friend who needs to share with the circuit city platform.
Project Link: https://www.cirmall.com/circuit/7880#/details
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4. Sound-controlled intelligent lamp design based on 51 single-chip microcomputer
Single chip model: STC89C52 / 51, AT89C52 / 51, AT89S52 / 51 can be optionally.
2. Relay suction The simulated opening light, the relay is turned off, the light-emitting diode is a light indicator, and the terminals behind the relay are the electric lights that can pick up 220V themselves.
3. Use the photosensitive sensor induction light to lightly change, judge the light line with strong light through the LM393 voltage comparator, there is a strong light indicator, when the light is very dark, when the light is strong, it can be clear. Know that the photosensitive sensor has received strong changes in the external light.
4. Judging whether there is a sound in the elective microphone, when the sound of the sound will be bright, otherwise it will be clearly known to know if the sensor is induced.
Project Link: https://www.cirmall.com/circuit/12633#/details
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5. Based on 51 single-chip wireless RF433M transmission tire pressure monitoring GSM SMS alarm design
Features:
Transmitter composition: STC89C52RC + BMP180 Atmospheric pressure module + RF433MHz wireless module;
Receiver consists: STC89C52RC + RF433MHz wireless module + SIM800CGSM module + buzzer + button;
Function Description:
The two transmitted atmospheric pressure information and temperature information are transmitted to the host RF433 module via the RF433 wireless module. The host receives the information of the RF433 module through the serial port, which is displayed on the liquid crystal. And can be set by pressing the alarm air voltage value. If it is greater than the alarm value, a alarm message will be sent to the user via the GSM module, which is set by modifying the program, and the host is alarm. The buzzer will ring.
Project Link: https://www.cirmall.com/circuit/12611#/details
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6. Design complete plan based on 51 single-chip digital signal generator
Design a 51 single-chip digital signal generator, using a 51-series microcontroller as a control core, the system includes a button portion, a display portion, a waveform output and an enlarged portion; the waveform, amplitude, frequency of the output signal is set by pressing the button, and the system is at least Can output three different signals.
The basic features of the implementation are:
(1) Output different signal functions;
(2) Output signal amplitude setting function;
(3) Output signal frequency setting function;
(4) Signal parameter display function;
Project link: https://www.cirmall.com/circuit/11745#/details
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7. Design of autonomous tracing of single-chip control
Two color standard sensors are equipped in the middle of the trolley, and the black line is detected by the method of query detection. After the black line signal is detected, the 89C51 PI.5 and PL.6 are known to detect the black line as a reference to the direction of adjustment of the direction of the cart. In terms of program, we use a differential control algorithm. In the calibration service program, by detecting the status of PI.5 and PL.6, the direction of the left and right front wheels is accurately adjusted, and the trolley is reached to keep the car walk along the black line. In order to ensure the accuracy of the program, 2 heavy black line detection is set in the service program, which effectively prevents the cars from rushing out of the runway. In the iron sheet on the straightway, we used metal detection sensors to detect.
Project link: https://www.cirmall.com/circuit/12381#/details
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8, smart drug box based on 51 single-chip microcomputer
The reference time for the intelligent pills is provided by the DS1302 clock module, and the time information can be saved by pressing the reference clock, and the time information is powered down; the number of medications for the drug position (maximum six positions) can be set by buttons (up to four positions) Switch for time), time, deadline, kit position function; when the function of the drug position is opened, the buzzer will make an alert, and the drug is not moved in 1 minute (whether the drug is taken up by infrared detection) The main single-chip sends a command to send a SMS to the GSM module from the microcontroller to send SMS reminder guardians, then drive the host, the host turns off the alert; can check the position, number of medications of the drug on the day, and display it in LCD1602.
Project Link: https://www.cirmall.com/circuit/8279#/details
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9,51 single-chip smart body weight is designed, I want to be fat
Graduation design needs to be a physical fat known. Find some information and decided to use the HX711 and 51 single-chip microcomputer. Since the requirements need to be written, the lower machine measured body weight, transferred to the mobile phone through Bluetooth, and the mobile phone is entered, and the BMI value can be obtained by calculation.
Project Link: https://www.cirmall.com/circuit/8694#/details
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10. Human body tracking controlled electric fans based on 51 single-chip microcomputer
Content: Design a human body to track controllable electric fans, which should have a human body tracking, intelligent switch, and intelligent speed.
Require:
(1) Understand the knowledge of single-chip, sensors, and motors;
(2) Through the principle of PWM speed, the fan is automatically accelerated with different temperatures, and when people go back to the fans;
(3) The temperature limit and lower limit can be set by the key control method, but the button has the function of adding and subtracting;
(4) Generate different signals and microcontroller control motor by multiple infrared sensors to rotate the electric fan as the movement of people
(5) The display can display the working state of the temperature value and the fan.
Project Link: https://www.cirmall.com/circuit/6349#/details
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