I always thought that the LCD would make a noisy sound after use, but it turned out to be the buzzer. The warehouse has been updated to fix this problem. [color=rgb(0, 128, 0)][font=宋体][size=4][url=ht...
I tried to learn Qt systematically from the textbook several times, but I found that I could learn faster when I was driven by specific problems. So I set myself this task: [size=4]Read the three-axis...
[img]file:///D:\Kugou\190679161\Image\C2C\Q6Y]AW7U%M(TFQFNN59M6AN.png[/img] Description of the problem: volatle bank1 unsigned int b1=1000; void delay() {...........} As shown above, I saw in Zhang Mi...
I want to use Bluetooth to transfer data from a CORTEX M4 ARM to a computer (with built-in Bluetooth 4.0) or an Android phone, with a transmission speed of more than 50KB/S (about 500 bytes per frame,...
What I want to achieve: When the P1.0 button is pressed, the timer starts, and the digital tube of the P2 port flashes once every second. When the P1.1 button is pressed, the timer stops working. The ...
[i=s]This post was last edited by w494143467 on 2021-5-13 16:17[/i]Let me talk about the situation first. My current company is 966, and I basically don't work overtime. Sometimes I have to work overt...
Microchip's PIC18F46J50 is a low-power, high-performance 8-bit USB microcontroller (MCU) using nanoWatt XLP technology. The current in deep sleep mode can be as low as 13nA, the operating voltage i...[Details]
Two simple circuits are implemented to drive two LEDs from a battery powered microprocessor.
This design is based on a circuit that uses three resistors and a microprocessor I/O pin as an input h...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
AD8205 is
a single-supply high-performance differential
amplifier
launched by
Analog
Devices of the United States
. The typical single-supply voltage is 5V, and its common-mode volta...[Details]
Microcalorimetry
is used to determine energy relationships. Microcalorimetry techniques are often required when performing calorimetric experiments with small sample sizes or slow heating rat...[Details]
introduction
MEMS is a high-tech that has flourished on the basis of integrated circuit production technology and dedicated micro-electromechanical processing methods. Pressure sensors develop...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
The TPS92210 is a single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC dimmable solution not only regulates the LED current, but also achieves a power factor close to 1. The...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
Introduction
Nowadays, people pay more and more attention to the security alarm system, and people have higher and higher requirements for the functions and performance of the alarm. This paper prop...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
Car lights, whether headlights, fog lights or tail lights, play an important role in driving safety. However, the material of the car lights determines that the probability of damage in a collision...[Details]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[Details]
Embedded System
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