Python 3.0 serial port

This object holds information about a serial port. This is also the information returned as first element when accessed by index. This is also the information returned as second element when accessed by index. This is also the information returned as third element when accessed by index.

Comparison operators are implemented such that the ListPortInfo objects can be sorted by device. Help for python -m serial. Changed in version 3. This is a console application that provides a small terminal application. Miniterm itself does not implement any terminal features such as VT compatibility.

The port is immediately opened on object creation, when a port is given. It is not opened when port is None and a successive call to open is required. The parameter baudrate can be one of the standard values: 50, 75, , , , , , , , , , , , , , , These are well supported on all platforms. Standard values above , such as: , , , , , , , , , , , , also work on many platforms and devices. Though, even on these platforms some serial ports may reject non-standard values. Possible values for the parameter timeout which controls the behavior of read :.

For possible values refer to the list for timeout above. Note that enabling both flow control methods xonxoff and rtscts together may not be supported. It is common to use one of the methods at once, not both. Setting it to None has the effect that its state follows rtscts.

Changed in version 2. Changed in version 3. The following methods may raise SerialException when applied to a closed port. Read size bytes from the serial port. If a timeout is set it may return less characters as requested. With no timeout it will block until the requested number of bytes is read. Write the bytes data to the port. This should be of type bytes or compatible such as bytearray or memoryview. Unicode strings must be encoded e. Controls TXD. When active, no transmitting is possible.

Set RTS line to specified logic level. It is possible to assign this value before opening the serial port, then the value is applied uppon open. Set DTR line to specified logic level.

Read or write port. When the port is already open, it will be closed and reopened with the new setting. Attribute to configure RS support. When set to an instance of rs The rs RSSettings class provides additional settings supported on some platforms.

A list of valid baud rates. The following methods are for compatibility with the io library. Read up to len b bytes into bytearray b and return the number of bytes read. When the connection is terminated it waits for the next connect. Telnet character IAC 0xff needs to be doubled in data stream. IAC followed by an other value is interpreted as Telnet command sequence. Telnet negotiation commands are sent when connecting to the server. Default port settings are set again when client disconnects.

Full control over the serial port with RFC This is done every 5 seconds using os. Send zeroconf announcements when port appears or disappears uses python-avahi and dbus. Single process for all ports and sockets not per port.

The script can be started as daemon. Navigation index modules next previous pySerial 3. Serial as ser: ser. Note The eol parameter for readline is no longer supported when pySerial is run with newer Python versions V2. TextIOWrapper io. BufferedRWPair ser , ser sio.