Use sensortile to make a somatosensory one-handed drone remote control, which can control the flight of the drone in various postures. It uses ppm control during simulated flight and 2.4G control during actual flight. The file is an mdk project, the chip used is stm32l4, and it has been tested on the simulator.
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.
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.
The cumulative counter of the packaging line made using a single-chip microcomputer has the function of saving the count value after shutdown and controlling the start/stop of the conveyor belt motor. The circuit is simple, reliable and practical.
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.
In industrial control, it is often necessary to count and measure products to achieve automatic control of equipment. This article introduces a method of making a counter that can set the count value arbitrarily within the display range. Moreover, the current count value, set value, and magnification value will not be lost when power is turned off. It is compatible with a variety of input signals and has a magnification accuracy of up to 5 digits. It is easy to use, stable and reliable, and can be widely used in machine tools, rubber, printing, pharmaceuticals, and cables. , textile, complete sets of control equipment and other industries.
The circuit in this design can control the automatic operation of the water pump motor according to the water level in the water tank and the set time. It has been used for more than a year and has excellent anti-interference and stability. Now I will introduce it to peers and microcontroller enthusiasts. The specific circuit is divided into four parts: microcontroller circuit, power supply circuit, water tank circuit and motor control main circuit.
As a simplified version of AT89C51, AT89C2051 removes P0, P2 and other ports, reducing the number of I/O ports. However, it adds a voltage comparator, so its functions are enhanced in some aspects. For example, it can be used to process analog Quantity, simple analog-to-digital conversion, etc. This article uses this function to design a digital capacitance meter, which can measure the capacity of capacitors with a capacity less than 2 microfarads. It uses a 3-and-a-half-digit digital display. The maximum display value is 1999. The reading unit is uniformly nanofarads (nf), and the measuring range is divided into In the fourth gear, the readings are multiplied by the corresponding magnification.
Ultrasonic car three-way ultrasonic detection obstacle avoidance obstacle competition dedicated carbon-free car electronic design competition
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%.
The main function is to set a certain route for the inspection vehicle through the host computer (the host computer gives coordinate points), and the inspection vehicle can inspect according to the prescribed path.
Fully automatic washing machine program and circuit diagram
It has been verified that it communicates with the arduino microcontroller through the serial port (USB, Bluetooth, etc.), and then the microcontroller controls the servo on the robotic arm to control the robotic arm to perform responsive movements.
The flight control source code of the Wolf quadcopter has been verified and can be found on Taobao. It flies normally and is based on the AVR microcontroller, which is very helpful for flight control research.
It is a good learning material for students studying microcontrollers and smart cars.
Mini quadcopter flight control source code program, if you are interested, you can take a look.