The serial port can send and receive successfully, but there is no response when sending AT to the GSM module. What's going on? The following is my program for sending AT. Is there anything wrong? m_s...
MDK3.5, JLINK7, RAM, debugging STM32F103C8T6, timer 1 PWM complementary output is missing one output, the missing one is PA9/USART1_TX/TIM1_CH2, the other ones are all correct when measured with an os...
Three years of work experience for undergraduates, one year of work experience for masters, one year of work experience for PhDs, CET4 and above, these are the basic requirements. Knowing C, knowing d...
[i=s]This post was last edited by Pinghu Qiuyue on 2014-8-16 23:06[/i] The launchpad I uploaded to the forum friends before was drawn by someone else. Since I was a beginner, I made many mistakes. I h...
As the number of cars increases, environmental pressures are also increasing. At this time, some people are saying that new energy vehicles are energy-efficient and environmentally friendly, and ar...[Details]
The structure of an LCD TV primarily consists of the LCD display module, power module, driver module (primarily including the main driver board and tuner board), and keypad module. LCD display modu...[Details]
Smartphones have become essential digital devices, and the growing number of smartphone-centric applications is enriching people's lives. As users, they desire a better app experience and a wider r...[Details]
Wearable technology is taking off, with applications evolving rapidly, from smartwatches to fitness trackers and even smart wigs! Bluetooth Smart is at the center of this revolution. This is the se...[Details]
The composition of the water heater
The water heater itself is divided into the following parts:
1. Water tank.
This is where the water heater is filled with water and where the wate...[Details]
Pure electric vehicles have experienced rapid growth in recent years, and many consumers now consider them as a top choice when purchasing a car. But do you know how to choose a satisfactory and sa...[Details]
Today, the voltage of electronic products continues to rise to 400V, 600V and even 1000V, so there are few electronic load models that can handle such high voltages. Many people consider connecting...[Details]
With rapid economic development, the types of pollution sources are increasing, especially in chemical and industrial zones and their surroundings. The patterns of pollution and the types of ecolog...[Details]
Let’s first take a look at the development concept of the EVD series.
The EVD control module is specially developed for operation in extreme environments. Components that meet these requiremen...[Details]
The number of new energy vehicles in use is increasing, and there are multiple choices available. New energy vehicles can be divided into hybrid and pure electric, and the types of hybrid include m...[Details]
1. Output power. Rated power (RMS): Rated power refers to the sinusoidal alternating power that the amplifier can withstand for a long time. Maximum undistorted power...
2. Frequency response:...[Details]
We often notice that some safety light curtains have EDM function. What does EDM mean here? What is its function?
The full name of EDM is External Device Monitor, which means external device m...[Details]
This article describes how to achieve constant-pressure water supply through PID control using an Allen-Bradley PLC-5 processor in conjunction with a SAMI STAR inverter. To ensure safe and reliable...[Details]
Function (FC) parameters
Functions do not have data memory in which to store the values of block parameters. Therefore, when calling a function, all formal parameters must be assigned actual p...[Details]
Comparison instructions compare two numbers, IN1 and IN2, of the same data type. IN1 and IN2 are located above and below the contact, respectively, and their data types must be the same. Operands c...[Details]
Embedded System
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