Yesterday, I was sitting on the subway line 10, and I heard the public service advertisement that I have heard countless times: from the perspective of a little boy, it encourages everyone to travel g...
I can now parse WAV files. The sampling rate is 44Khz 16bit dual-channel PCM encoding. I now want to do FFT transformation. Should I directly use the 16bit data of WAV as a point for FFT transformatio...
I want to realize the communication between a PC and multiple AVR microcontrollers atmega16, the communication method is rs485 communication, please help me solve it, provide source code or flow chart...
Hello everyone! I have a question. I have a nodemcu module, which has been flashed with esp8266-20161110-v1.8.6. If I want to connect an external SD card, I need the file sdcard.py. Now I upload it th...
Make a half-bridge high-frequency inverter circuit driven by IR2110 chip. SG3525 is in front of IR2110. For simplicity, only the circuit after IR2110 is drawn, as shown in the figure: . But the output...
I graduated from a key university with a bachelor's degree in electronic information engineering and have been working for more than a year and a half. Since I started working, I have mainly been enga...
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]
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[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]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[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]
1. Overview
The Virtual CAN Interface (VCI) function library is an application program interface specifically provided for the use of ZLGCAN devices on PCs. The functions in the library ar...[Details]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
1. Project Introduction
Shandong Dezhou Xingtai Paper Co., Ltd. is a newly built high-end paperboard production enterprise with domestic leading level established by Shandong Zhaodongfang Pape...[Details]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[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]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[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]
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