I want to make an electronic ID card based on BlueNRG-1. I want to send and upload identity data to and from Android. The number of electronic ID cards can be supported to be around 100, all online at...
Hello everyone! According to the plan, the output signal power should be measured this week, but unfortunately, I just found that the output signal power of this signal source cannot be set, only the ...
The following GD32L233C-START special review:
1. Unboxing review https://en.eeworld.com/bbs/thread-1192788-1-1.html
2. GD32L233C-START environment construction https://en.eeworld.com/bbs/thread-119305...
ZIGBEE provides a report mechanism (now only learned send, receive has not been learned)
The main purpose is to implement the report function of the attribute, that is, to provide a mechanism for sync...
Reliable system security requires a combination of approaches, and the root of trust must begin with a secure boot process. Lattice has built on its leadership in this area with the launch of the nex...[Details]
"According to the design, if the Yonggang substation wants to achieve 'one-button smooth control' intelligent operation, 240 industrial video-grade cameras need to be installed to realize intellige...[Details]
At present, the storage technology function of the network video system is mainly realized through centralized storage, that is, the video stream transmitted by the front-end camera is recorded cen...[Details]
Lithium-ion batteries are notorious for frequent internal short circuits that can ignite the battery's liquid electrolyte, causing the battery to explode and start a fire. Now, engineers at the Unive...[Details]
According to foreign media reports, the 2018 GMC Terrain Denali is equipped with multiple collision detection systems, and a recent test verified the safety of the system. Even when driving in a bu...[Details]
The picture shows the SW399
standard battery
replacement.
The circuit shown in the figure is a standard power supply with an output voltage of 1.01V, ...[Details]
MIUI V5 is unique, MIUI 8 has explosive functions, and MIUI 11 is both beautiful and attractive. If you ask why you choose a Xiaomi phone, 'MIUI' may be the answer for many people. However, w...[Details]
This place seems to be no different from other villages in northern China: it is also an almost invisible dot on the map, it is also quiet, silent and slow, and because of the departure of young pe...[Details]
On the morning of March 4, Apple launched a new service this week designed to enable iCloud users to quickly and easily transfer their stored photos and videos to Google Photos. As described ...[Details]
1. Introduction to Agilent Oscilloscope The first time I heard about and used a Keysight oscilloscope was when I was a graduate student. Now I think that I learned four years of undergraduate study i...[Details]
Recently, a high-level player successfully broke the Guinness record for the fastest completion of the classic game "Super Mario Bros." with a record of 18 minutes and 59.856 seconds. This guy played...[Details]
LED is a light-emitting tube with diode characteristics, which can only be powered in one direction. Usually, the brightness output of LED is proportional to the current passing through the LED, bu...[Details]
1 Working principle of microcontroller MSC1210 A microcontroller is a single-chip microcomputer that integrates the main parts of a microcomputer on one chip. Microcontrollers were born in the mid-...[Details]
The control circuit of the LED large-screen display system currently used is mostly composed of a single or multiple CPUs and complex peripheral circuits. This circuit design is relatively complex ...[Details]
ST - Low Power RF
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