Programming VIP

Sensors are often used in daily life, such as stair lights in buildings, street lights on roads and so on. So what is the role of sensors in mobile phones in particular? Android phones provide acceleration sensors, magnetic fields, directions, gyroscopes, light, pressure, temperature and other sensors. In Android system. The code distribution i ...

Introduction: for the serial port to receive some variable length data, we must face a problem: how to judge whether a frame of data reception is completed? RXNE non null interrupt is usually used in combination with simple data protocol. Frame header and frame tail are added to the data. Judge whether the frame tail is received in the program ...

outline This paper mainly records some personal opinions on learning I2C protocol, and realizes STM32 to read and write EEPROM data based on I2C protocol Statement: due to limited personal ability, this article is only personal learning notes, and I hope to point out any mistakes I2C characteristics Support device bus, that is, multiple d ...

Three ways of using Arduino to read PWM signal of RC receiver Note: Recently, the static change of the playing model requires the use of a 2.4Ghz RC controller to control arduino. I found an article on using Arduino to process PWM signal on the Internet. I think it's good. I hope it can help Tonghao. (translation and summary) https://www.benri ...

1, Product creation 1. Functional requirements APP end functiondescribeMode selectionPreservation mode and deodorization modeDeodorization timeYou can define the deodorization working time of the equipmentDeodorization gear adjustmentStrong, medium and weak grades are supportedLow power alarmLow battery report, APP end alarm Device end funct ...

Principle of ultrasonic ranging Using sound ranging, the speed of sound in the air is 340m/s(15 ℃) When the sound propagates, it will bounce back if it encounters an obstacle. The distance from the transmitting end to the obstacle can be calculated by counting the rebound time S=v*(t/2) Ultrasonic module instruction In the single chip m ...

Mixed use of various modules (1) Measurement of temperature and humidity;             DHT11 (2) Display of temperature, humidity and other parameters;      LCD screen (3) Setting of alarm data (key);       EXIT interrupt service function (4) Temperature and humidity con ...

  Memory reading and writing experiment: Assign BCD codes 75H and 35H to 30H and 31H units of RAM respectively, try to add the two numbers, and the difference of BCD is sent to 32H unit. (description): Because the decimal adjustment instruction of MCS-51 is not suitable for subtraction, subtraction can be changed into addition: the subtract ...

preface Nowadays, with the rapid development of science and technology, our home has been full of all kinds of household appliances; Among them, the kettle is one of our commonly used household equipment. The traditional kettle has only a simple heating function and can not set the heating temperature or remote control. In view of this si ...

1. Hardware The hardware schematic diagram is as follows: The hardware schematic diagram is the hardware circuit of punctual atom stm32zet6 elite version. Different development boards should be based on the actual circuit. First of all, to make the led light up, there must be a voltage difference between the two sides of the led lamp. As can b ...