pydevmgr-serial 0.6a0

based pydevmgr object for serial communication

An pydevmgr_core extension for serial communication

Sources are here

Doc to comme

Install

> pip install pydevmgr_serial 

Basic Usage

Bellow is an exemple of implementation of a node that check a value from a Tesla Sensor. An extra configuration argument is added and the fget method is implemented.

from pydevmgr_serial import BaseSerialNode
import time

    
class TesaNode(BaseSerialNode):
    class Config:
        delay: float = 0.1
        
    def fget(self):
        self.serial.write(b'?\r')
        time.sleep(self.config.delay)
        sval = self.serial.read(20)
        val = float(sval)
        return val

you can simply use the node with a Serial object :

from serial import Serial 

# build a standalone node 
com = Serial(port='COM1', baudrate=9600)
tesa = TesaNode(com=com)

print( "Position is ", tesa.get() )
com.close()

One can include the node in a serial device which will hold the communcation

Note: One creating a SerialDevice the port is not directly opened one needs to use the connect method or within a with statement.

from pydevmgr_serial import SerialDevice
from pydevmgr_core import nodealias



class Tesa(SerialDevice):    
    raw_pos = TesaNode.Config()
    
    @nodealias('raw_pos')
    def position(self, raw_pos):
        return 10 + 1.3 * raw_pos    

tesa = Tesa('tesa',  port ='COM1', baudrate=9600)

with tesa:
    tesa.position.get()