rland-py-study 0.0.0.2

Package for studying python features

Roboroboland Python Study Package(v 0.0.0.2)

This package is about roboroboland's python study. It includes from basic calculator examples to advanced serial communication multi threading code.

To start

Install Library

To Start, Please install following packages

1. pyserial
2. numpy
3. pandas

General

calculator

1. To Start
   Write down this code on the top of your source

from rland_py_study import calculator.Calculator()

2. class:Calulator

• variables :

  • self._result = 0

• functions :

  • result(self):
    • return : self._result
  • add(self, num) :
    • add 'num' and '_result'
    • return : self._result
  • sub(self, num) :
    • subtract 'num' from '_result'
    • return : self._result
  • mul(self, num) :
    • multiply '_result' by 'num'
    • return : self._result
  • div(self, num) :
    • divide '_result' by 'num'
    • return : self._result
  • reset(self):
    • reset '_result' to zero
    • return : None

3. Example code

from rland_py_study import *

_cal = calculator.Calculator()
while(1):
    _input = str(input("Please insert number and operator\nPresent value : "+str(_cal.result())+"\n(ex. +10 or -10, quit:q, reset:r)\ninput : "))
    if _input[0] == '+':
        print("Add")
        _input=_input[1:]
        _cal.add(float(_input))
    elif _input[0] == '-':
        print("Sub")
        _input=_input[1:]
        _cal.sub(float(_input))
    elif _input[0] == '*':
        print("mul")
        _input=_input[1:]
        _cal.mul(float(_input))
    elif _input[0] == '/':
        print("Div")
        _input=_input[1:]
        if(float(_input)==0):
            print("can't divided by 0")
        else:
            _cal.div(float(_input))
    elif _input[0] == 'r':
        _cal.reset()
        print("Calculator is reset")
    elif _input[0] == 'q':
        exit()
    else:
        print("Wrong input. Please insert right direction.")

Serial

This library is to use Serial communication with external hardware(ex. RS board, Cube, R drone ...)

basic

1. To Start
   Write Down this code on the top of your source. Package 'pyserial' must be installed to use it.

from rland_py_study.serial import *

2. class:SerialBasic

• variables :

  • self.robot = None
  • self.process = None

• functions :

  • port_search(self):
    • Search COM port of user's computer and prints their names.
    • return : None
  • port_open(self, port):
    • Try to open port to connect device with computer. If openning process succeed, they will be connected. If openning process failed, port will be closed.
    • return : None
  • port_search(self):
    • If there's a connected device, disconnect it from user's computer.
    • return : None

3. Example

#(will be updated soon)