A deck of unused playing cards and a 3D printed stand can be used to build a creative playing card clock. I used playing cards as the flaps of the clock and made a fun and crazy clock with minimal par...
[i=s]This post was last edited by lb8820265 on 2021-8-15 01:30[/i]I have had a dream of making a car since I was a child. I have been working hard for this dream and have made several generations of B...
[size=14px]ubuntu 16.04 ros. When running, the error [/size] You must call ros::init() before creating the first NodeHandle Couldn't find an AF_INET address for [] is in the main function. ros::init i...
Using the CSL library API function to configure the DSP is obviously more convenient and easier to understand than configuring registers one by one. The following describes how to use the CSL library ...
See this link: [url]https://en.eeworld.com/bbs/thread-1068572-1-1.html[/url] Let me raise an opinion that I have always wanted to say. At present, many forums have some corresponding measures, that is...
[i=s]This post was last edited by SensorYoung on 2019-9-26 23:35[/i]Dear moderator/sister,My account has been inactive for many years and was reactivated this year. It has become a mess. I recently pa...
Recently, at the 2nd Nandujiang Smart Medical and Rehabilitation Industry Summit Forum held in Haikou, VeriSilicon founder Dai Weimin shared his insights on the development of the brain-computer int...[Details]
In portable instruments, a very low-power light-detection circuit can be used to automatically monitor the background light. This function can be easily implemented with a logic gate or Schmitt tri...[Details]
Recently, with the completion of full-capacity charging and discharging of the 200MW/400MWh independent shared energy storage power station in Guizhou Jinyuan Tea Garden, Jinsha County, Bijie City, Gu...[Details]
Faraday Future spokesman John Schilling confirmed the layoffs and Risher's departure in an email. Schilling said that "most" of the hundreds of employees who were furloughed had "left voluntarily," b...[Details]
When using j-link to download programs or debug online, there are two modes: JTAG and SWD You can choose in Keil: The following are the interface pins used in the two modes: It is recommended to...[Details]
Apple released the new iPhone SE this week, equipped with the A15 Bionic chip. So is this A15 chip "full of power"? Last year, Apple used different numbers of GPU cores in chips made specifically f...[Details]
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When the ambient temperature of the LED is higher than the safe operating point temperature, the forward current of the LED will exceed the safe zone, greatly reducing the li...[Details]
The touch button is mainly realized by detecting the number of oscillations of the RC oscillation circuit built on the board-level system within a fixed time. If the number of oscillations changes si...[Details]
#Structure and principle of digital tube Seven-segment light-emitting diode is referred to as digital tube. The seven-segment light-emitting tubes are called a, b, c, d, e, f, and g respectively, for...[Details]
A solar power generation device based on hydrogel technology - artificial leaf. Researchers said that this water-based solar cell can not only generate electricity like silicon-based solar cel...[Details]
Recently, some media have noticed that a clause in the EULA (End User License Agreement) of NVIDIA CUDA 11.6 and later versions mentions: "You may not reverse engineer, decompile or disassemble any r...[Details]
Source: Number of vehicle factory certificates; Analysis and charting: Electric Vehicle Observer China's installed capacity of power batteries has declined year-on-year for eight consecuti...[Details]
According to foreign media reports, General Motors (GM) has submitted a new patent application to the US Patent and Trademark Office (USPTO): Airborne Coronavirus Detection and Alert System. The pate...[Details]
While we may not care (other than a minor annoyance) if someone taps into our music stream, we do care if someone taps into our conversations, voicemails, or eavesdrops by turning on the microphone...[Details]
DIY/Open Source Hardware
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