-
The main methods for ammonia nitrogen in China are: salicylic acid colorimetry, Nessler's reagent colorimetry and ammonia sensitive electrode method. Simply put, there are two categories: colorimet...[Details]
-
1. Experimental task As shown in Figure 13, use the P0 port P0.0-P0.7 of the AT89S51 microcontroller to connect to the a-h segments of a common cathode digital tube, and the common end of the digita...[Details]
-
Recently, a third-party market research organization released a data report on smartphones equipped with under-screen fingerprint technology in the first half of 2019. In terms of mobile phone brands...[Details]
-
1. What is Proteus 8 Professional? Proteus is an EDA tool software launched by Lab Center Electronics. Proteus has the features of schematic layout, PCB automatic or manual wiring, SPICE circuit si...[Details]
-
When the ZDS2022 oscilloscope decodes the captured protocol signal, it does so based on the data on the screen. If the data displayed on the screen is less than a protocol frame packet, there will be...[Details]
-
I. Introduction
Remote sensing definition. In a broad sense, it refers to the remote perception, non-contact long-distance detection technology. In a narrow sense, it refers to the use of special det...[Details]
-
During the ARM development process, everyone will encounter the situation where the stack is not enough or the stack is too large. Here I will introduce how to modify the stack size through the two d...[Details]
-
I need to drive a motor recently, so I looked at the output of PWM and made some conclusions. I will post them here.
The advanced timer of stm32 is quite complicated. I looked at the examples and fou...[Details]
-
From the perspective of anti-electromagnetic interference, the power supply EMI filter is actually a low-pass filter that only allows DC and power frequency to pass through, that is, it allows current...[Details]
-
The demand to reduce CO2 emissions is driving global transportation equipment manufacturers to achieve lower and lower emission standards, which requires them to not only improve the efficiency of ...[Details]
-
Faced with huge profits, NVIDIA is very concerned about "mining" and has repeatedly participated in the field. Not only has it launched the CMP 30HX/40HX/50HX/90HX series of dedicated mining ca...[Details]
-
1 Introduction
The CO gas concentration monitor is a portable intelligent instrument used to measure the CO content in the relevant ambient air. This paper introduces the design of the CO gas ...[Details]
-
Recently, China Mobile, China Unicom and China Telecom have successively announced their performance in the first half of 2019. The words "earning 400 million yuan a day" in media reports have once a...[Details]
-
Matrix Switcher Full Operation Guide
To ensure reliable use of the equipment and personnel safety, please observe the following during installation, use and maintenance:
...[Details]
-
CAN (Controller Area Network) is a serial communication network. It uses many new technologies and unique designs, which makes it have outstanding advantages in reliability, real-time and flexibili...[Details]
Domestic Chip Exchange
京公网安备 11010802033920号
EEWORLD
