CC2541.. Android only downloaded SensorTag_0_9_3.apk. . Then I want to make changes based on this APK. How to do it? Just add a few functions 1. Add a statistics button. After clicking it, you can go ...
Haha, I opened the MP4 I received as the Best Puzzle Solver Award in October. It turned out to be the solution of Jz4725. It is really small. According to the previous style of Ingenic solutions, it s...
[i=s]This post was last edited by dcexpert on 2017-3-8 08:52[/i] Yesterday, Taiwanese netizen ImHori found an open source project that uses MicroPython for flight control. Are there any netizens willi...
[align=left][color=#000000]Design requirements: First, the coordinator sends the acquisition signal to the terminal through the key control. After the terminal receives the acquisition signal, it coll...
I called 12315 a few days ago to ask about some questions related to the protection of rights for small-property houses. I just wanted to find out first, and it won’t take long. They asked me to call ...
Abstract : This paper introduces a portable multifunctional water meter based on AT89C51 single-chip microcomputer. The instrument can measure the water level and flow rate of open channels, meet the ...
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
Remote keyless entry (RKE) systems have become popular with users, with more than 80% of new cars in North America and more than 70% in Europe equipped with RKE systems. In addition to the obvious ...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[Details]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[Details]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
Introduction
Nowadays, people pay more and more attention to the security alarm system, and people have higher and higher requirements for the functions and performance of the alarm. This paper prop...[Details]
Liquid crystal display (LCD) panels have a wide range of applications, from small portable electronic devices to large fixed devices, including digital cameras, laptops, personal data assistants, d...[Details]
With the rapid development of cities and the improvement of citizens' living standards, the number of various vehicles in cities is growing, and the demand for parking spaces in major commercial an...[Details]
When the so-called "copycat phones" that flood the domestic mobile phone market move towards large screens, stereo amplifiers, touch controls, and even GPS navigation and mobile TV, the homogeneity...[Details]
Electric bicycles have long been a means of transportation for lower-income groups due to their affordability. The largest concentrated expense in the use of electric vehicles is the cost of replac...[Details]
The production process of lithium batteries does not mention the previous processes such as material preparation, winding, liquid injection, and packaging, but only talks about the final formation ...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
1 Introduction
Power supply ripple will interfere with the normal operation of electronic equipment, causing malfunctions such as computer crashes, data processing errors and control system fa...[Details]