First connect to wifi:Solve the problem with apt:
Always reporting error:When using the default debian image, if you perform apt operations, you will get the following error:GPG error: http://ftp.port...
1. Problems with existing testing methodsThe loop resistance tester (also called HTHL-100A contact resistance tester ) designed according to conventional design principles found that there is a common...
Author: Weisheng CHEN, ST engineer
Click to download the pdf document to view:Keywords: BlueNRG-1/2, ADC1, ADC2, CHSELProblem: When using the BlueNRG-1/2 ADC module, customers need to use two ADC chan...
The BLE_Chat_Master_Slave routine is used
I am doing a protocol transparent transmission, but I don't know how the mobile phone Bluetooth and BlueNRG-1 communicate.
What functions are used to send and...
The method of entering is very simple, just call the library function: PWR_EnterSTOPMode (PWR_Regulator, PWR_STOPEntry_WFI), and the method of exiting is to wake up by external interrupt. After exiti...[Details]
The purpose of video image encoding/decoding is to convert analog video signals into digital signals for transmission. On the other hand, since the image data obtained by simple video analog-to-dig...[Details]
Many people want to upgrade the firmware of a product without disassembling it, which is not only convenient but also saves energy and cost. So how to complete this task? The Bootloader introduced be...[Details]
With the continuous improvement and maturity of high-frequency switching power supply technology, its application in railway signal power supply systems is also increasing rapidly. At the same time, i...[Details]
The Bandgap Reference Calculator (BGRC) is a
Bandgap Reference Circuit
design and analysis tool. All circuit parameters and output voltage are calculated as a function of junction ...[Details]
"In the next 3-5 years, the amount of sensing connections will be massive, and we will work together with power generation companies, equipment integrators and operation and maintenance companies, ...[Details]
The rules and regulations of the automotive industry will beat these "barbarians" to a pulp. Evergrande’s vortex continues. This Oriental lion is sick, and very sick. On August 19, Evergrande was...[Details]
AVR serial port says it has multi-machine communication function, which means it sends the slave address in the first frame and then sends data. So where is the slave address written? Does the slave ...[Details]
ams OSRAM: Complete production capacity and chip technology upgrade in Styria, Austria by 2030, responding to the European Chip Act
By 2030, ams Osram plans to invest €588 milli...[Details]
Before using an insulation resistance meter to measure insulation resistance, the following checks should be done: (1) Check whether the equipment under test has been cut off and discharge the short ...[Details]
Recently, Guorun Energy Storage has received good news. After successfully delivering the Shanghai Chemical Park all-vanadium liquid flow battery energy storage project, it has won a new overseas o...[Details]
At the end of 2019, OPPO released the Reno3 series of mobile phones. Half a year later, OPPO Reno4 has surfaced. Recently, a photo of the OPPO Reno4 was exposed on Weibo. The main featu...[Details]
On February 24, UMC issued an announcement stating that the Suzhou Hejian 8-inch wafer factory received a notice from the competent authority on February 24 to resume production from now on! UMC po...[Details]
"The customer is always right" is a well-known saying in the service industry and marketing field. Its copyright seems to belong to Harry Gordon Selfridge. He founded the British department store S...[Details]
Many mobile phone brand manufacturers have released new products one after another, including smart watches, TWS headphones, smart bracelets and other new wearable devices. The release of these new...[Details]