A variable defined as volatile means that the variable may be changed unexpectedly, so the compiler will not make assumptions about the value of the variable. To be precise, the optimizer must careful...
Chips are in short supply now, and I need a 3.3V to power an LED. Can I use 5V to connect two diodes in series to reduce the voltage to 3.6V as a replacement?...
[i=s]This post was last edited by led2015 on 2020-4-23 00:40[/i]Anyone who knows or has encountered this problem, please give me some advice. I have searched all the knowledge on Baidu but it is usele...
Recently, I have a problem to analyze. It is about the failure of the capacitor and the short circuit that caused the fuse to burn out. The circuit is DC-DC 24V to 5V. The failed capacitor is at the i...
[This article comes from PChome] Recently, with the launch of next-generation game consoles, many netizens have paid high prices to buy them to try them out. However, it didn’t take long for many user...
This application brief describes the two topologies used to bias optical laser drivers (open loop and closed loop) and demonstrates examples using the DS1847 digital potentiometer and the MAX3273 lase...[Details]
A new smartwatch has recently been certified by the Bluetooth SIG. The watch is released under the Huawei brand, but the model number is different from the one we already know. The watch has the mo...[Details]
Tramway News: We must build the car well and never let down everyone’s expectations! On March 5, Lei Jun, as a representative of the National People's Congress, said at the plenary meeting of th...[Details]
With the continuous development of technology, more and more electronic devices have appeared in our lives. However, these devices usually have different connection ports and protocols, which may m...[Details]
Sometimes, when writing ARM, you will encounter frequent crashes, which is inexplicable. Here I have summarized some common search methods for microcontrollers/ARM crashes or running away and some of...[Details]
Plug-in hybrid/electric vehicles (xEV) contain a high-voltage battery subsystem that can be charged using a built-in onboard charger (OBC) or an external charging station. Charging (application) requ...[Details]
Currently,
collaborative robots
have achieved efficient human-machine collaboration by virtue of their ability to safely collaborate with humans, making flexible manufacturing no longer a d...[Details]
Editor's note: Urban NOA, which stands for Urban Navigation Assisted Driving, means that after the user sets the destination in the navigation system, the vehicle can follow, overtake, change lanes, ...[Details]
This corridor light made of high-brightness light-emitting diodes is turned off during the day and automatically lights up after dark. The annual power consumption does not exceed 2 degrees, and th...[Details]
On the evening of December 18, the U.S. Department of Commerce officially announced that it would add SMIC to the Entity List. The Bureau of Industry and Security (BIS) of the U.S. Department of Comm...[Details]
On November 26, the company released an official announcement saying that it had received a notice from China's National Development and Reform Commission and would cooperate with the commission's an...[Details]
CPU Timings: Oscillation period: The period of the oscillation source that provides the timing signal for the microcontroller (crystal oscillator period or external oscillation period) State cycle:...[Details]
LED display screen is composed of a row of light-emitting diodes, so the quality of LED directly affects the overall quality of the display screen. 1. Brightness and viewing angle The brig...[Details]
I saw that many pins can be configured as EVENTOUT. There happened to be a pin that wanted to output a high-level pulse, so I tested it:
Environment: STM32F407, IAR 7.4, STM32CubeF4
GPIO configurat...[Details]
cost:
The short-term growth of automotive LiDAR is highly certain, and the cost is continuing to fall. The transceiver module accounts for the majority of the BOM cost of LiDAR, and the transc...[Details]