"""
provide basic class to operate Lock-in
"""

import pyvisa
import scpi

class LockIn(scpi.SCPIinstr):
    """     
    Do not instantiate directly, use
    rm = pyvisa.ResourceManager()
    LockIn(rm.open_resource('TCPIP::192.168.0.2::INSTR'))
    """
    def __init__(self, resource):
        super().__init__(resource)
        self.resource.read_termination='\n'
        

if __name__ == '__main__': 
    print("testing")
    rm = pyvisa.ResourceManager()
    print(rm.list_resources())    
    instr=rm.open_resource('TCPIP::192.168.0.51::INSTR')
    lckn = LockIn(instr)
    print(lckn.idn)