Indoor positioning system based on zigbee (8x8 m) uses 4 cc2530 as base station (one of them is used as coordinator), 1 cc2431 as mobile station (terminal device) and uses cc2431 positioning engine to...
[font=黑体][size=5]Requirements: Do not use a transformer, use discrete components, input 220V AC power, output DC 4V or so. Used to drive two 1W LEDs, the current is about 800MA![/size][/font] [font=黑体...
[img]http://i3.6.cn/cvbnm/86/b0/eb/1e1b36815199b89aa72af13b76ba12ad.jpg[/img] The source code is automatically generated by VS2005: // Win32Project2.cpp : Defines the entry point for the application. ...
This line in this PCB interferes with itself. The left and right spacing is 11.38mil, so there shouldn't be any problems. Does anyone know the reason? I have obsessive-compulsive disorder and I'm upse...
I designed a circuit that uses a 7.4V lithium battery, but the working voltage is 5V. The current of this circuit is about 150ma. What kind of conversion chip should I use? The main consideration is t...
After stm32 has been erased and written many times, it has been downloaded about 2000 times. Will the above situation occur? When the temperature feels cold, everything is normal; but when the tempera...
When we travel in cities, we all find that electric vehicles have many advantages. As a means of transportation, they can also fulfill their mission well. Now, more and more residential communities...[Details]
1 Source of creativity
With the further development of electronic technology, electronic pets have gradually entered people's family life. At present, there are two main categories of relative...[Details]
With the development of science, the use of variable frequency technology is becoming more and more widespread, and it is used in both industrial equipment and household appliances. Inverter air co...[Details]
A pure sine wave inverter has a good output waveform with very low distortion, and its output waveform is essentially the same as the AC waveform of the mains power grid. In fact, the AC power prov...[Details]
Wearable technology is taking off, with applications evolving rapidly, from smartwatches to fitness trackers and even smart wigs! Bluetooth Smart is at the center of this revolution. This is the se...[Details]
The practice of warming up a car originated with gasoline-powered vehicles. Warming up the engine allows it to enter a better working state and ensures good lubrication. This has become a habit for...[Details]
ESD protection diodes are specialized for small-signal ESD protection or surge protection TVS arrays, often used for multi-circuit protection. Their small package size, low on-state voltage, high i...[Details]
Deep in the laboratory, a seemingly ordinary piece
of
battery
material
was fed into the China Advanced Research Reactor (CARR). Scientists activated the neutron depth profiling device,...[Details]
It’s a collaborative blueprint designed to address integration complexities and create scalable solutions through Arm’s automotive innovation ecosystem.
The transformation of future mo...[Details]
The power battery is a crucial component for vehicles, determining its lifespan and range. According to national regulations, when the capacity of an electric vehicle's power battery drops below 80...[Details]
The number of new energy vehicles in use is increasing, and there are multiple choices available. New energy vehicles can be divided into hybrid and pure electric, and the types of hybrid include m...[Details]
A transimpedance amplifier (TIA) is a front-end amplifier for optical sensors, such as photodiodes, converting the sensor's output current into a voltage. The concept of a transimpedance amplifier ...[Details]
We often notice that some safety light curtains have EDM function. What does EDM mean here? What is its function?
The full name of EDM is External Device Monitor, which means external device m...[Details]
Introduction
With the development of mobile internet, technological advancements, and the introduction of high-performance, low-power processing chips, the variety of smart wearable devices has...[Details]
On August 8th, at the 2025 World Conference held in Beijing, Orbbec, under the theme of "Inspired and Dynamic," unveiled a new lineup of sensing products for the robotics field. Among them were the...[Details]