At first I wanted to use it to make a thermometer and hygrometer, and then I bought the Xiaomi one.
Later, I wanted to use it in combination with MLX90614 to make an infrared thermometer, and then I h...
When compiling the above program with gcc, an "empty character constant" error occurred.
The reason is that there must be a space between the single quotes in line 26. The English meaning of empty cha...
Two temperature analog quantities; four switch quantities, three of which are buttons, and one pressure protection switch quantity. The temperature can be set on the touch screen, using PID. Thank you...
Requirements are as follows:1. The IO port can directly drive the buzzer and motor;2. Only 7 IO ports are needed;3. Common programming methods.Sorry for the trouble.I found an AT89LP213 before, which ...
Radar systems are widely used, and different types of radars have different application scenarios. It is necessary to comprehensively consider a series of factors such as performance, size, and cost. ...
According to the plan, test the play_mp3_control routine. First, select the play_mp3_control routine in the ESP-ADF framework of VS code. The IIC and IIS pins of the 8388 pins in the official ESP32-A1...
What is the no-load loss of asynchronous motor?
The no-load loss of an asynchronous motor depends on the rated power and rated voltage of the motor, as well as the specific design and manufact...[Details]
AI has experienced 86 years of development since Alan Turing first proposed the concept of "Turing machine" in 1943. This article reviews the landmark events of the past 70 years in the form of an in...[Details]
The fourth chapter of the third edition of the Huazhong University of Science and Technology's Electric Machines directly points out that winding electromotive force and magnetomotive force are sim...[Details]
1 Introduction
With the development of industry and science and technology, users have higher and higher requirements for power quality. All raw power, including city power, may not meet the r...[Details]
The Dickson charge pump theory can be extended to obtain a charge pump circuit that generates a negative voltage. The working principle of the negative voltage charge pump is shown in Figure 1. Its...[Details]
According to Jiwei.com (Text/Digital Control), OPPO's new Reno phone has been confirmed to be released in Shanghai on the 10th of this month. It can be confirmed that this new phone has two versions,...[Details]
Timer 2 + serial port sending
USART.c
#include "STM32Lib\\stm32f10x.h"
/**********************************************
**Serial port configuration function, here two serial ports ar...[Details]
Active measurement means that during the machining process, the measuring device always measures the size of the workpiece and transmits its size change to the controller at any time. The controller t...[Details]
Format: void function name () interrupt interrupt number using workgroup { interrupt service program content } Note: Interrupts cannot return any value, so there is void in front and function n...[Details]
According to foreign media MacRumors, Apple has submitted a device with a series of sensors and tactile feedback to the US Patent and Trademark Office. The device is designed for fingers and ma...[Details]
Since the beginning of this year, Jingjiawei's performance has also increased significantly, with the background of a substantial increase in product sales in the chip field and a stable year-on-year...[Details]
Apple confirmed on the 29th that it will release new fall products on September 10. However, one of the most pressing issues facing Apple right now is the latest round of tariffs implemented by the T...[Details]
Mixed signal oscilloscopes first appeared in 1993 with two analog channels and 8 or 16 digital channels. In the following years, mainstream MSOs were basically locked at 2 or 4 analog channels plus 1...[Details]
The main power supply and backup battery are connected to the load through a simple diode "OR" logic circuit. However, when the battery voltage exceeds the main power supply voltage, the diode "OR"...[Details]
Intelligent driving development trend
Autonomous driving technology is divided into multiple levels, and different organizations have proposed multiple grading standards. Currently, the two co...[Details]