-
The novel coronavirus epidemic in Wuhan is still raging, and the long-awaited turning point is still to be waited for. At this moment, "When will work resume?" "Do I need to go to the company?" "Is i...[Details]
-
The brightness of LED lights can be controlled by adjusting the voltage, but it is not ideal, and the adjustable range is very small. If the voltage is slightly higher, the LED will be easily burned. ...[Details]
-
An arm is a mechanical structure connected by multiple joints, similar to a human arm. It usually has rotatable or retractable joints that enable it to perform precise positioning and manipulation ...[Details]
-
For FLASH memory microcontrollers, you can develop programs quickly and easily without an emulator. You can start from the following aspects: 1. Try to use high-level languages to develop system pr...[Details]
-
Philips' LPC213l is a high-performance 32-bit RISC microcontroller based on ARM7TDMI-S. It has all the advantages of an ARM processor - low power consumption, high performance and rich on-chip resour...[Details]
-
For a high-reliability system design, the choice of crystal is very important. In the oscillation circuit, the crystal should be neither over-driven (easy to oscillate to high harmonics) nor under-dr...[Details]
-
1. Introduction Road lighting is an important part of urban public facilities. At present, most of the domestic road lighting systems do not adopt network monitoring and management, and can o...[Details]
-
Digital multimeter troubleshooting should generally start with the power supply. For example, after the power is turned on, if the LCD element displays, you should first check whether the voltage of ...[Details]
-
The response characteristics of the oscilloscope will affect the waveform of the signal and change the calculation of the signal rise time. When Pentium 4 entered the gigahertz era, high-speed interf...[Details]
-
Due to project requirements, I ported qt-extended4.4.3 to Mini2440 some time ago. I will now briefly describe the porting process, hoping that it will be helpful to friends who are doing related wo...[Details]
-
1. Changes in the concept of overvoltage protection
When lightning strikes in the distance, the lightning surge is transmitted to the equipment through the power grid or communication line...[Details]
-
background
The philosophical dialectical unity, contradictory movement and interaction principles of productivity and production relations are also applicable to the development of automotive ...[Details]
-
When analyzing combinational logic circuits, the effect of gate circuit delay time on the circuit was not considered. In fact, it takes a certain amount of time from signal input to stable output. Due...[Details]
-
A netizen asked on Zhihu: Will iPhone 11 be the next "really good phone"? In response to this question, Li Nan, former senior vice president of Meizu, basically believed that iPhone 11 would be a b...[Details]
-
Since cars consume large amounts of electricity, only battery technologies with high power density are desirable, and since cars need to be used every day, the batteries must be rechargeable. Howev...[Details]