The Raspberry Pi 400 is both a keyboard and a Raspberry Pi personal computer. Just use it with a mouse and a monitor. It integrates a 79-key compact keyboard with a 4GB memory Raspberry Pi 4, a quad-c...
Preface
There are two ways to test the runtime of your code:
1. Use the internal timer of the microcontroller to start the timer at the beginning of the program segment to be tested and turn it off at...
Unconsciously, EE Water Army (EEWORLD Development Board Exchange) has been established for nearly 5 years. From the beginning to today, it has brought together more than 500 electronic bragging enthus...
In the schematic diagram of products with metal housings and metal housings for connectors on PCB boards, there is often a capacitor of several nF in parallel with a 1M resistor, which is used to conn...
According to data released by the National Bureau of Statistics, the number of civilian cars in my country reached about 260 million at the end of 2019. Although the development speed has slowed down ...
3G access technology has evolved from WCDMA/TD-SCDMA/CD-MA2000 to HSDPA, HSUPA and HSPA+, and has begun to transition from 3G network to 4G network. Currently, the access bandwidth of HSDPA can reach...[Details]
01 Introduction
Relays are widely used electrical products. If the working reliability evaluation and failure prediction of relays used in the field can be realized, it can not only avoid syst...[Details]
0 Introduction
Traditional induction energy meters are limited by their structure and principle, and usually have shortcomings such as small measurement range, poor stability, and low accuracy...[Details]
1. IBM GPM model structure
With the rapid development of ASIC technology and process, 65/45nm process has become the mainstream of current design. High-frequency flipping and impact curren...[Details]
The probe is the bridge between the oscilloscope and the object under test. Without this bridge, the oscilloscope cannot read the information of the object under test. Therefore, the oscilloscope pro...[Details]
On June 23, Chedongxi was invited to attend the media communication meeting on radar solutions held by NXP. At the meeting, Yang Chang, radar product marketing manager of NXP Semiconductors Greater...[Details]
Electronic products are made up of different electronic components, including capacitors, inductors, resistors, coils, generators, etc., among which capacitors are common electronic components. Cap...[Details]
This time, the three words "Bandaixing" need to be displayed through 8*8 dot matrix. The code of each Chinese character here needs to be handwritten in the notebook, and then the corresponding code sh...[Details]
1. Detection of electrolytic capacitors 1. Detection when disconnected from the circuit Use the multimeter R×1K gear. Before the test, touch the two pins of the electrolytic capacitor to dischar...[Details]
We still use STC's 8051 microcontroller. This code is used to make a timer, which is displayed in real time through a digital tube. Because there are 6 digital tubes on the board, you can set the hou...[Details]
The most effective way to prevent interference is to remove the interference source and cut off the interference path, but it is often difficult to do so, so we can only see whether the anti-interfer...[Details]
Abstract: Aiming at the shortcomings of previous electronic blood pressure monitors, this paper introduces the design of an intelligent electronic blood pressure monitor based on a programmable sys...[Details]
Less than a month after Nvidia announced its acquisition of Arm, AMD responded quickly and was revealed to be preparing to acquire Xilinx for more than $30 billion. The acquisition could be reached a...[Details]
Charging pile tester PROFITEST H+E series PROFITEST H+E XTRA and PROFITEST H+E XTRA C are diagnostic test instruments for simulating charging processes using DC sources and loads and have integrated ...[Details]
1. LED dedicated switching power supply. The power supply can only be moisture-proof, not waterproof, so waterproof measures must be taken when the power supply is external.
2. The switching power...[Details]
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