I used the AT command ATDT (calling end) and ATA (called end), and the number was dialed, but why is there no carrier? The modems cannot transmit data, what's going on?...
[i=s]This post was last edited by ohahaha on 2018-4-23 11:52[/i] [align=left][size=4]PCB Layout Design Specifications - Device Selection[/size][/align][align=left][size=4] [/size][/align][align=left][...
This is the schematic diagram of the board I drew, using STM8S003F3, using IIC to read and write 24C32, with a pull-up resistor of 3.3K. I used another STM8S003F3 development board with the same progr...
I just submitted a smart bike companion, and later found out that someone else has made one. In order to make a SensorTag for fun, I submitted another solution. Since the difficult ones have been done...
Everyone knows that if you want to learn any kind of MCU or MPU, you need to actually write programs or build hardware. However, some MPUs or MCUs are not suitable for building circuits by yourself, s...
Difference between TMS320x281x and TMS320x2833x/TMS320x2823x
I've been using TI's 28355 chip recently. Since I've never used it before and there isn't much information on it online, I went to TI's off...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[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]
Capacitors
are basic components in various electronic devices and are widely used for bypassing, coupling,
filtering
, tuning, etc. in electronic circuits. However, to use capacitors,...[Details]
Motors are important products that convert electrical energy into mechanical energy to achieve automation, and they are widely used in industrial control, medical electronics, white a...[Details]
The DisplayPort interface standard is approved by the Video Electronics Standards Association (VESA) to provide an open, scalable standard for the entire industry. The development of DisplayPort ca...[Details]
The emergence and development of street lamps are inseparable from the prosperity and progress of cities, which makes street lamps useful. Conversely, street lamps also make the night of the city n...[Details]
In recent years, with the increasing maturity of LED technology, LED light sources have been increasingly widely used due to their advantages of using low-voltage power supply, low energy consumpti...[Details]
Dual Tone MultiFrequency (DTMF) signaling is gradually being used in push-button telephones around the world. It quickly replaced the dial pulse signaling used in traditional rotary phones because ...[Details]
When developing electronic products with processors, how to improve anti-interference ability and electromagnetic compatibility?
1. The following systems should pay special attention to anti-...[Details]
1. Project Introduction
Beijing Benz-Daimler Chrysler Co., Ltd. is a joint venture between Beijing BAIC Group and Benz-Daimler Chrysler. In October 2005, it started to build a new automobile ...[Details]
The biggest advantage of Profibus is that it is guaranteed by the stable international standard EN50170 and has been proven to be universal in practical applications. It has been widely used in man...[Details]
TMC428 is a stepper motor motion controller from TRINAMIC. It can reduce the workload of motor control software design and development costs. The 3-axis stepper motor drive control system based on ...[Details]
The programmable controller directly controls the stepper motor, which can significantly reduce the cost of the control system of the modular machine tool automatic production line. The article int...[Details]
The battery and its management system are one of the key technologies of electric vehicles. In the past few years, most companies have encountered embarrassment in the development of electric vehic...[Details]
Embedded System
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