[Preface] The previous nucleic acid registration was based on Excel. This time we plan to use MySQL for data access, so we plan to install MySQL today.
1. Download the MySQL installation package from:...
A circuit protection company in Dongguan (foreign capital)job description:Collaborate with PE, RD and Marcom to launch new products to the marketCoordinate with PE to release new part numbers in SAPLa...
I would like to ask you a question. The five outputs of the DC power supply in the picture above are + - ground + -. To power the circuit board in the picture, it is marked with 12v and GND, but I mea...
I recently used SHT75 and found a problem:
As long as the wire is extended, the reading will be wrong.
Remove the extended wire and you can measure normally.
The wiring is only 20cm long. After wiring...
[indent][align=left]Speaking of the difficulties of switching power supplies, PCB layout is not a big problem, but it is definitely one of the difficulties of switching power supplies if you want to l...
Inverter harmonics are high-order harmonics generated in the input and output circuits during the inverter operation, when the input power needs to be inverted by high-power diode rectification (or...[Details]
Ion Storage Systems (Ion), a U.S.-based manufacturer of high energy density, fast-charging solid-state batteries (SSBs), announced on August 1 that its independently developed solid-state battery c...[Details]
New quality productivity was written into the 2024 Chinese Government Work Report and listed as a top priority for 2024 and beyond. Gartner research shows that China's chief information officers (C...[Details]
Typical Computing Element Characteristics
Existing compute elements (or processors) have different characteristics that affect their processing efficiency. The following figure shows a graph o...[Details]
A total of four buttons are used. #define _KEYDOWN_TEST_TIME (20) unsigned char IsKeyDown(volatile unsigned char Value, unsigned char pin) { unsigned long CurState = 0, i; for(i = 0; i _KEYDOWN_TE...[Details]
Current detection or feedback is usually required in power supplies and other equipment. Current detection usually uses a series sampling resistor and an amplifier to amplify the voltage on the resi...[Details]
On December 11, Huishan Economic Development Zone and SINOMACH Mechanical Industry Survey and Design Institute Co., Ltd. (SINOMACH Jikan Institute) successfully held a signing ceremony for the 1GW ene...[Details]
1. Explanation of some common English abbreviations in
ARM MSB: Most Significant Bit;
LSB: Least Significant Bit;
AHB: Advanced High-Performance Bus;
VPB: VLSI Peripheral Bus that connects on-chip...[Details]
When using MDK5 to compile STM32, the newly added .c file needs to be added to the include Paths, otherwise an error will be reported during compilation. When using STM8, IAR is used. The newly added...[Details]
According to Counterpoint Research's latest smartphone component tracking report, the global semiconductor chip shortage is likely to continue to ease in the second half of 2022 as the supply-demand ...[Details]
Sony held its Sony Technology Day online event yesterday to showcase the various technologies that Sony is currently working on, and one of the products the company showcased was a prototype VR...[Details]
Heilind Electronics, an authorized distributor of professional interconnect and electromechanical products, recently announced the further expansion of its existing product line, adding Pomona Electr...[Details]
* JLink Info: STM32F3xxx (connect): Can not attach to CPU. Trying connect under reset. ***JLink Error: STM32F3xxx (connect): Connecting failed. * JLink Info: Found Cortex-M4 r0p1, Little endian. * JL...[Details]
Familiar with the layout and usage of various measuring instruments and power supplies; Master the measurement method of the internal resistance of the voltmeter and ammeter; Be familiar with the ...[Details]
See the on-site discussion. The expert think tank went to Weiyuan to actively discuss and make suggestions to help the high-quality development of shale gas + industry. Recently, the Provincial Scienc...[Details]