There are many types of OLED screens. According to the interface mode, they can be divided into I2C interface and SPI interface mode. According to the color, they can be divided into single color, dua...
Currently developing Silverlight program in wince6 R3 environment, planning to use DirectDraw as 2D acceleration method. The processor is pxa310, which supports DirectDraw 2D hardware acceleration. Co...
The first wave of prizes have been sent out. Due to my negligence, I made a mistake in the floor at the beginning. I don’t want to disappoint the participants, nor do I want to change the results that...
Some say 12, some say 9, some say a lot, some say very little, so how many it is exactly? No one has been able to figure it out yet! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !...
The TMS320F28335 contains a 12-bit AD converter with the following features: 12-bit ADC core with built-in (sample and hold) S/H Analog input: 0.0V to 3.0V (voltages above 3.0V produce full-scale conv...
I would like to ask the experts, how to measure the frequency (about 30k) and duty cycle (standard square wave) of the chip semi-finished product (wafer) when installing the acquisition card on the in...
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
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]
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[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]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[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]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[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]
1. Overview
At present, an information revolution is in the ascendant around the world, led by microelectronics, computers and communication technologies, and centered on information technolog...[Details]
1 Introduction
With the improvement of people's quality of life, lamps are no longer just basic indoor lighting tools, but also a kind of practical art for architectural decoration. When ther...[Details]
Overview
By transmitting ultrasonic energy into the human body and receiving and processing the returning reflected signals, phased array ultrasound systems can generate images of organs and s...[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]
The production process of lithium batteries does not mention the previous processes such as material preparation, winding, liquid injection, and packaging, but only talks about the final formation ...[Details]
The power consumption of a switching power supply includes fixed losses caused by parasitic resistances such as semiconductor switches, magnetic components, and wiring, as well as switching losses ...[Details]