The 1602 LCD display module uses an 8-bit parallel interface. If we want to control it through the I2C bus interface, we also need an I2C bus to 8-bit I/O module. The more mature solution is to expand...
I copied the PCB of one board onto another and there are a lot of circles at the connections. What does this mean? Will it affect the finished board if I ignore it?...
[color=rgb(0, 0, 0)][font=SimSun][size=12pt]Pull-up resistor: [/size][/font][/color][color=rgb(0, 0, 0)][font=SimSun][size=12pt]1. When the TTL circuit drives the COMS circuit, if the high level outpu...
The English abbreviation of television monitoring system is CCTV (closed-circuit television). Closed-circuit television monitoring system is a comprehensive security system across industries. The syst...
I built a program and downloaded it to LF2407A using "load program" in file and flash utility, without setting the csm password. It runs fine under ccs, but not under the stand-alone version. I checke...
Dear engineers: How big is the ripple (or noise) of a switching power supply? For example, how big is the noise of a 27V 5.6A CE-certified power supply? How can I filter out the noise on the power sup...
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
0 Introduction
With the development of my country's economy, the number of motor vehicles continues to increase. The growth of existing roads and other hardware facilities can no longer meet t...[Details]
China's new energy vehicles are in a transition period from research and development to real industrial development. In 2012, with the intensive launch of new energy vehicle policy planning, the de...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[Details]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
1 Introduction
As an emerging microfabrication technology, micro-electromechanical system (MEMS) technology has begun to be applied in various fields. It can integrate functions such as inform...[Details]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[Details]
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
Flooded Batteries
This battery developed in Germany can be used to power flashlights, strobe lights and toys as long as it is filled with water. This battery can be stored for 50 years and can...[Details]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
Introduction
Liquid crystal, as a display device, is widely used in low-power products such as instruments, meters, and electronic equipment with its unique advantages. In the past, the displ...[Details]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]
stm32/stm8
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