serial port listener

Importserial Import the module and then we can use SER.=Serial. Serial (0) is to open the first serial portPrintSer.portstr can see the identity of the first serial port, under Windows is Com1ser.write ("Hello") is to write data to the serialSer.close () is the

This note contains two aspects: 1. Only control the LED light off and no value is returned. 2. Control the LED light off and return a value. After reading a few videos, we are talking about the serial port method 1. Other functions are not available yet. Here we only use serial port method 1 to implement these two func

Objective:In Linux, when a GPIO is configured as a serial port or other function, it is no longer possible to export the Gpio (echo xx >/sys/class/gpio/export) in the file system, which is not allowed because your PIN is already in use as a function of other functions.when configuring the Linux kernel, make menuconfig configures the serial

This weekArticle Asynchronous Implementation of serial port operationsSome problems have been found during serial port applications such as RFID, bar code, and printing in the project: 1. Clear useless data in the serial port be

Linux serial port description-general Linux technology-Linux technology and application information. For details, refer to the following section. I am a system integration engineer, so I often use notebook to debug the ROUTER or SWITCH in my daily work. However, when the operating system is changed to linux, I am dumb, I have also referenced some materials on the Internet. Based on my actual situation, the

IntroductionThe serial port is a very common protocol for device communication (not to be confused with the Universal Serial Bus Universal Serial Bus (USB)). Most computers contain two RS232-based serial ports. Serial

Long time no article, years ago, the company opened a new project, and USB to the serial port communication related, the demand is the Android tablet through the USB adapter and several peripherals to communicate, has been busy to the recent, just slowly idle down, while this weekend is not busy, recording the basic flow of USB to serial communication development

1, download: sudoapt-getinstallminicom2, insert usb to the serial port line, terminal input: dmesg | grepusb ............... [7415.893942] usbserial: USBSerialDrivercore [7415.931116] usb3-1: ark31_converternowattachedtottyusb0 [ 1. Download sudo apt-get install minicom 2. Insert the usb to the serial port. Terminal in

Serial Communication Overview There are many kinds of serial communication protocols, such as rs232,rs485,rs422, even the popular USB is serial communication protocol. And the application of serial communication technology is everywhere. Perhaps everybody sees most is the computer

information is displayed: C- Kermit8.0.211, 10 Apr 2004, for Linux Copyright (C) 1985, 2004, Trustees of Columbia University in The City of New York. Type? Or HELP Help. (/Root/) C- Kermit> ## KermitCommand Line prompt. 5. Connect to the serial port to display the system information of the Development Board. (/Root/) C- Kermit> Connect ## KermitConnect to the serial