I was very happy to receive a big package this afternoonThe first thing I saw when I opened it was a piece of paper, a letter from EEworld to the forum friends :victory:The next thing I opened was the...
My platform is PXA270+Wince5.0. Now the LCD display is strange. When I first enter the system, the display of the main screen is normal, but when I switch the screen, the screen will be partially or p...
I just received the EE-FPGA learning board yesterday and couldn't wait to start debugging. The EE-FPGA routine didn't seem to mention the problem of setting unassigned pins. What would be the impact i...
Since the PCB is limited by the installation size and the number of pins, although the transistor plus the resistor can complete the function, it takes up a large PCB area. I want to use a 485 chip wi...
EP3C120F780 is a relatively large FPGA in CYCLONE III. Its related introduction is as follows:780 pins, FBGA package, industrial temperature (-40 to 100 degrees), commercial temperature (0~85 degrees)...
Use 7805 to get +5v power supply, and of course 7905 can be used to get -5v power supply. My idea is, can I use an op amp to invert the +5v output and use it as a -5v power supply output? I guess such...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[Details]
1. Introduction
Since the 1980s, with the continuous development of automotive electronic technology, there are more and more electronic control units in automobiles, such as electronic fuel i...[Details]
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
The data collector of the automatic weather station is generally designed based on a single-chip microcomputer or a PC/104 bus controller. It has the characteristics of good compatibility with PC, low...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
This article will introduce a design method for a distributed control system used in a tracking car, which can perform distributed control of motor modules, sensor modules, and lighting control mod...[Details]
introduction
At present, measuring instruments are developing towards networking, and each individual embedded instrument will become a node on the Internet. This system realizes the network...[Details]
The above is to use MB1404 as a stereo composite signal transmitter. You can use the internal high-frequency amplifier and oscillator or not! According to my experience, I still recommend beginners...[Details]
0 Introduction
There are many types of sensors, and the working principles, measurement targets and measurement environments of different types of sensors vary greatly. The corresponding detection s...[Details]
The demand for improved healthcare environments is endless, so medical imaging equipment with higher resolution is needed to better observe the human body. High resolution brings problems with sign...[Details]
Cars equipped with xenon headlights are already common on the road. Whether they are standard equipment on high-end cars or embellishments on modified cars, xenon lamps are gradually becoming a sym...[Details]