(1) The power line is an important way for EMI to enter and exit the circuit. Through the power line, external interference can be transmitted to the internal circuit and affect the RF circuit indicat...
This content is originally created by agitek, a netizen of EEWORLD forum. If you want to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source. Recent...
Since the beginning of the 20th century, motors with adjustable speed transmission have been widely used in the steel industry and the automobile industry. The speed control system used for AC motor s...
Arteli - 32-bit MCU innovation leading brand (high performance, high cost performance)1. Established shortly, developed rapidly. In just 4 years, it can achieve complete pin-to-pin replacement for ST3...
Over the past three years, some managers of Foxconn factories in mainland China have stolen iPhone parts and helped some businessmen obtain and assemble defective iPhones. After completion, these "ass...
The temperature and humidity measurement control program based on 51 single chip microcomputer uses DHT11 digital sensor and 1602 LCD screen. The button definitions are as follows:
sbit key_1=P0^1; /...[Details]
This article introduces a digital temperature sensor SD5075 with an I2C communication interface to achieve temperature measurement function. The software and hardware design schemes are described. ...[Details]
1. Principle Introduction There is a full-duplex serial port inside the 51 single-chip microcomputer. What is a full-duplex serial port? Generally speaking, a serial port that can only receiv...[Details]
On December 14, HMD Global released the Nokia C1 Plus smartphone in Europe. From December 25, the phone has been available for pre-order in China. As planned, the phone can be purchased in China. Nok...[Details]
Preface: Thanks to the changes brought about by Microsoft's Windows Phone system, Nokia, whose market share had been gradually declining, has regained its vitality, and its Nokia Lumia series of sm...[Details]
At 2:15 on December 29, 2019, with the completion of the ring closing test of Ziguan Line 1 and Line 2 on the side of Muguajie Power Plant (Zijing Power Plant), the 500 kV transmission project of S...[Details]
Let's take the startup code of the ARM Cortex_M3 bare core as an example to do a simple analysis. First, three tasks are completed in the startup file: 1. Initialization of stack and heap 2. Locate ...[Details]
The DT830B digital AC voltage block is specifically divided into 200v block and 750v block. The following describes the measurement of AC voltage by measuring the voltage value of the mains power. ...[Details]
Thermistors are a type of sensitive components, which are divided into positive temperature coefficient thermistors (PTC) and negative temperature coefficient thermistors (NTC) according to their t...[Details]
The latest consumer electronics products, such as TVs, set-top boxes or mobile phones, are all interconnected or at least equipped with high-speed data interfaces. The most common interfaces for th...[Details]
By leveraging the knowledge of both parties, we aim to provide the best products in the factory automation and industrial machinery fields and establish a high-profit business On July 30, 2021 (Fri...[Details]
Wireless field testing mainly simulates user behavior by testing the mobile phone to make voice or data calls. At the same time, the receiver acts as an independent test device to test the signal s...[Details]
Appendix 2 AT89C51 special function register list (applicable to chips with the same architecture)
Special function registers marked with * are bit-addressable registers.
...[Details]
Last month, Xiaomi demonstrated its Super Charge Turbo 100W super-fast charging technology, which can fully charge a 4000mAh battery phone (when the phone is turned on) in about 17 minutes. On the ...[Details]
Recently, the reporter visited the construction site of Shanghai Electric's 1GWh vanadium liquid flow battery production project, where the construction work is in full swing. Photo At the constructio...[Details]
Test/Measurement
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