I bought a few cheap multimeters a few days ago . When the courier delivered them today, I couldn’t wait to open them.I bought 7 of them this time, one for each colleague. There are three models in to...
A Simple Comparison of LoRa Technology and NB-IoT1. What is LoRa technology?
LoRa is one of the LPWAN communication technologies. It is an ultra-long-distance wireless transmission solution based on s...
1. Brief descriptionThis article mainly explains the A40i Boa application, which is applicable to the Feiling A40i series FETA40i-C core board Linux3.10 operating system. Other platforms can also be u...
[i=s]This post was last edited by Yishayishi on 2022-7-8 08:39[/i]MOV C, P1.1; Read the level on the P1.1 pin
How to use the instruction MOV C, P1.1? There is no instruction MOV C, XX in the 51 assemb...
Working hours of heart rate braceletThe battery capacity of this kind of smart bracelet that can monitor heart rate and even blood pressure in real time is generally less than 100mAh. Some products ca...
What is electromagnetic compatibility
Electromagnetic compatibility (EMC) refers to the ability of a device or system to operate in accordance with requirements in its electromagnetic environment and ...
1 Introduction Multi-parameter monitors are widely used in ICU, CCU, wards, operating rooms, etc. At present, my country also has products with independent intellectual property rights, such as Min...[Details]
1 Open STVP 2 PROJECT/NEW, create a project with a random name 3 PROJECT EDITION, first select the chip in Configuration, the most important thing is to set it in SerialNumbering Check Enable Serial ...[Details]
According to Jiwei.com, in October 2021, Chengdu Sili Technology Co., Ltd. (hereinafter referred to as "Sili Technology") completed an angel round of financing of 11 million yuan. This round of finan...[Details]
Put data code into different segments Assembly language programs can put data, stack, and code in one segment, but they can also put the program, stack, and code in different segments. The following ...[Details]
1 Introduction to LTCC
Future mobile phones are developing towards lightweight, multifunctional, digital, high reliability and high performance, and the requirements for miniaturization, integratio...[Details]
Recently, the National Development and Reform Commission issued the "Provincial Power Grid Transmission and Distribution Price Pricing Method (Revised Draft for Comments)" and solicited public opin...[Details]
After the implementation of the policy of reducing subsidies for new energy vehicles, voices have been heard from time to time that the power battery market will be reshuffled. In recent years, some ...[Details]
Yangtze Memory Technologies Co., Ltd. announced that it has successfully developed its 128-layer QLC 3D NAND flash memory (model: X2-6070), which has been verified on terminal storage products such a...[Details]
For the detection of defects in automobile stamping parts, measuring instruments such as inspection tools, steel rulers, feeler gauges and surface gauges are generally used to measure the material ed...[Details]
Ideally, every power supply should behave as the mathematical model for which it was designed works. However, in reality, component defects, load changes, power supply distortion, and even difference...[Details]
Embedded technology based on ARM platform and real-time operating system is more and more widely used. Therefore, in the development of an industrial control handheld device, it is also based on su...[Details]
ARM microprocessors support load/store instructions for transferring data between registers and memory. Load instructions are used to transfer data from memory to registers, and store instructions pe...[Details]
Starting from the first quarter of 2020, Huawei once again staged a drama in the field of smartphones, defeating Xiaomi in the field of smart wearables. In China, although Huawei leads with less than...[Details]
The use of digital multimeters has become very popular, but in common books on electrical technology, the measurement method of semiconductors is mostly using pointer multimeters, and the use of dig...[Details]
introduction
In the past, people usually measured pulse by using a stethoscope or electrodes attached to the human body. These methods are undoubtedly inconvenient for outdoor use. This heart ...[Details]
DIY/Open Source Hardware
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