Can anyone tell me: I clearly placed the GND network mark when I drew the schematic, but there is no GND network mark in the network report or PCB? I wonder if anyone knows what the reason is? Thank y...
Can a potentiometer that can rotate multiple circles be used to detect the rotation of the steering wheel? What I am considering here is the wear and tear of the potentiometer caused by the speed of r...
[color=#000][font=tahoma, arial, 宋体, sans-serif] Jinyue Electronics DSO068 Oscilloscope Kit is an oscilloscope production kit suitable for electronic professional teaching and training, as well as per...
After spending a few days, I finally downloaded a mobile APP with the help of teacher bigbat. After repeated attempts, I was finally able to receive the data sent by SHT31.
This mobile APP is provided...
Hello everyone, I use CC2530 with Arduino cloud to try to make a border router (border-router), and then I can use a zigduino board's udp-client to send packets through the router to an ipv6 server fo...
1 Introduction
The multifunctional monitor is a commonly used clinical medical device. It can display the patient's electrocardiogram (ECG), respiration (RESP), blood oxygen saturation (SP...[Details]
1 Overview
Drugs are like a "double-edged sword". They can treat diseases but can also cause serious adverse consequences. The dual nature of drugs depends on whether they are used rationally....[Details]
Blood pressure is one of the important physiological parameters of the human body. Accurate measurement of it is conducive to early detection and identification of hypertension types, and to the pro...[Details]
Conventional ECG recorders are one of the main means for doctors to diagnose heart diseases, but they can only record short heartbeats. In many cases, it is difficult to record ECG changes during a...[Details]
1 Overview
The BP01 pressure sensor is specially designed for monitoring blood pressure and is mainly used in portable electronic sphygmomanometers. It uses a precision thick-film ceramic chip and...[Details]
This article introduces a miniature home electrocardiograph. The instrument has powerful functions: display monitoring, storage, playback, printing, record management, power alarm, telephone or Intern...[Details]
In some warehousing management, manufacturing, meteorological observation, scientific research and daily life, the requirements for temperature and humidity are common. For example, the "Interim Pr...[Details]
TD-SCDMA terminal conformance test includes three types of tests: RF index test (reference standard: 3GPPTS34.122), protocol signaling test (reference standard: 3GPPTS34.123) and other tests (refer...[Details]
The overcurrent and overheating coordinated protection technology implemented by polymer positive temperature coefficient devices (PPTC) can protect motors, controllers and electronic components in...[Details]
In the future, a complete automobile safety system must fully combine gyroscopes, accelerometers, steering wheel and brake pedal position detectors, and tire speed detection systems to accurately ...[Details]
This article first briefly introduces the working principles of current mode and voltage mode and their respective advantages and disadvantages; then discusses the ideal voltage mode using output c...[Details]
Today's mobile phone production testing faces an increasingly complex environment, with challenges of multiple frequency bands and multiple standards, pressure on production test speed, and pres...[Details]
Industrial control
often requires multi-channel fault detection and multi-channel command control (this multi-task setting is very common). A single CPU chip is difficult to directly complete ...[Details]
Abstract:
A single pulse secondary radar reply processor implemented with EPLD. Its main functions include: reply frame pulse detection, reply information decoding, assembling reply inf...[Details]
For mobile phone products, using low-cost components in design is only the first step to make the price competitive. The cost of the production process, especially the cost incurred during the fina...[Details]