Shenzhen Changjiang Connector Co., Ltd. is a world-leading professional connector manufacturer with 20 years of experience. Its products mainly include wire-to-board connectors, board-to-board connectors, wire-to-wire connectors, wire harness processing and connector design, mold development and manufacturing. It is compatible with international brand connectors from Europe, the United States, Japan, South Korea and other countries.
I developed a development board with 430 to control a brushless DC motor with a Hall sensor. However, when everything is connected and the program is burned in, the Hall sensor always reports an error...
How to answer such a question?[align=left][color=rgb(51, 51, 51)][font=宋体][size=4]Doesn’t a diode not allow current to flow in the reverse direction? Why in this picture, when the second and third dio...
The power input is 18V, and the output needs to be 5V/5A, 12V/3A, -12V/2A. There are three output voltages. I don't know which company can do a better job of DC step-down.I found a L7912 power IC, but...
Our company makes testing machines. Now there is a problem, if the sensor is not connected properly or the wire is loose.When doing the experiment, no force was detected, the motor kept turning, and i...
Apple today released the third public beta of watchOS 7 to public beta users. Public beta users can download the watchOS 7 update after installing the appropriate profile from the Public Beta web...[Details]
The main purpose of this file is: Setting the Initial SP Set initial PC=Reset_Handler Set the vector table entry address and initialize the vector table Call SystemInit to set the system cloc...[Details]
IDC has raised its near-term forecast for the worldwide smartphone market following two consecutive quarters of positive growth. IDC's Worldwide Quarterly Mobile Phone Tracker shows that smartphone...[Details]
Abstract: This paper introduces the design ideas and implementation methods of an intelligent data communication card for radio stations controlled by OKI's FSK MODEM chip MSM7512B and AT89C51 m...[Details]
1. Introduction to OneNET Platform OneNET is an efficient, stable and secure IoT open platform created by China Mobile. OneNET supports adaptation to various network environments and protocol types, ...[Details]
In recent years, OPPO has mainly established its brand awareness with its innovative series of smartphones, including the Reno and Find series. During INNO Day 2019 at the end of last year, O...[Details]
Foreign media reported that a Chinese startup that sells facial recognition systems to police officers is valued at more than $1.5 billion, which is enough to show that facial recognition technolo...[Details]
1. Correct selection of pressure (differential pressure) detection instruments The correct selection of pressure testing instruments mainly includes determining the instrument type, range, accuracy a...[Details]
Apple has begun "early work" on a foldable iPhone, according to a new report from Bloomberg's Mark Gurman. Although testing of a foldable iPhone has begun, Apple has not yet committed to releasing ...[Details]
Audio Precision Releases APx500 v7.0, Latest Audio and Acoustic Measurement Software
New features reduce production testing time
Audio Precision today released APx500 ...[Details]
Pull-up input: with pull-up resistor
When the button is not pressed, the port is connected to a high level, that is, high level 1 state---3.3v
...[Details]
Fault phenomenon: After the source meter is turned on, it shows that the hardware is missing Testing process: After receiving the instrument, we first verified whether the appearance of the instr...[Details]
With the delivery of the domestically produced Tesla Model 3, Tesla's sales in China have been rising. Jin Ye (pseudonym), a Tesla salesperson, is so busy that he can't even reply to WeChat messages....[Details]
On October 24, Bloomberg reported yesterday that Arm plans to cancel the license that allows its long-term partner Qualcomm to use Arm intellectual property to design chips.
Today, analy...[Details]