1. Serial port 232 chipMAX232cse chip introduction
RS232 interface chip MAX232, SOP package mainly has the following models: MAX232CSE, MAX232ESE. If the suffix letter is "C", it means commercial grad...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:12[/i] I got it working today. May I ask what wireless transceiver modules everyone uses? I think it might be useful for the car problem!...
The controlled circuit is 48V/10A DC, and I want to control the microcontroller to trigger the switch of the relay through the computer serial port. But I checked the market and found that they are ge...
[i=s] This post was last edited by RF-刘海石 on 2016-12-27 22:40 [/i] [color=#ff0000][size=4]2016 is about to end, but I am still on a business trip, working hard in this cold northwest. . . I probably w...
TO-252 package, the first pin is connected to two resistors for voltage division, the second and third pins are measured with a multimeter and are Schottky diodes, but what is the first pin used for?...
Error: L6286E: Value(0xbffff70) out of range(0 - 0xfff) for relocation #2 (wrt symbol Image$$ZI$$Limit) in init.o(init)================================================================================M...
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
In industry, voltage 0…5 (10) V or current 0 (4)…20 mA is usually used as a method for analog signal transmission, which is also a method often used by programmable controllers. So what are the dif...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
The overall operating performance of an electric car depends first on its battery system and motor drive system. The drive system of an electric car is generally composed of three main parts: a con...[Details]
Analogue and Mixed Signal
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