ó Ñ+]Yc@sxdZddlZddlZddlZddlZdd d„ƒYZd„Zd„Ze dkrtedƒndS( sU This is a module that communicates with the ESKPLA laser in the lab via RS232 port. iÿÿÿÿNtLaserSerialInterfacecBseeZdZed„Zd„Zd„Zd„Zd„Ze d„Z e dd„ƒZ d „Z RS( s] This class is for communicating with the laser through the RS232 serial interface. cCs¶d|_d|_iddgd6ddgd6ddgd 6dd gd 6|_|rjtjd ƒ|_n!tjd dddddƒ|_idd6|_idd6dd6|_dS(NtreadysThe device is readys[PC:READY=0\NL]tbusysThe device is busys[PC:BUSY=0\NL]toffsThe device is offs [PC:OFF=0\NL]s+The device is ready but with cooling error.s[PC:READY=2048\NL]sloop://tports/dev/ttyUSB.LASERtbaudrateiKttimeoutis [NL:SAY\PC]t say_state_msgsUnrecognized strings [NL:What\PC]sUnrecognized commands[NL:Ignored\PC]( tNonetstateterrortstatestserialtserial_for_urltSerialtcommandst responses(tselftloop((s /home/pi/Code/cbp_2/bin/laser.pyt__init__s  !cCszddddg}xa|D]Y}|jd}|jj|ƒ||jkr|j|d|_|j|dGHqqWdS(ss This is a method for testing the state of the laser in a loop-back environment. :return: s [PC:OFF=0\NL]s[PC:BUSY=0\NL]s[PC:READY=0\NL]RiiN(RR twriteR R (RRtresponseR((s /home/pi/Code/cbp_2/bin/laser.pyt test_states  cCsq|jd}|jj|ƒ|jjddƒ}||jkrh|j|d|_|j|dGHndGHdS(sˆ This method checks the status of the laser and then sets the state of the laser inside of the class. :return: Rtsizeiiis Not found.N(RR RtreadR R (RRR((s /home/pi/Code/cbp_2/bin/laser.pyt check_state+s cCs$x|jdkr|jƒqWdS(sy This method calls the :py:meth:`check_state` until a ready state is set by the class. :return: RN(R R(R((s /home/pi/Code/cbp_2/bin/laser.pytget_ready_state:scCsd|jƒdjt|ƒƒ}|jj|ƒ|jdtƒ}t|ƒ|kr[dGHndGHdS(sõ This method changes the wavelength of the laser. :param wavelength: This is the value of the wavelength to be set. Units are in nanometers and limits are 355nm to 2300 nm. :return: s [W0/S{0}]t comparisonsWavelength set correctlysSomething went wrongN(RtformattstrR Rtcheck_wavelengthtTruetint(Rt wavelengthtwavelength_change_msgtcheck_response((s /home/pi/Code/cbp_2/bin/laser.pytchange_wavelengthCs cCs^d}|jj|ƒ|jjddƒ}|GH|rI|j|ƒ}|S|jƒ}|GHdS(Ns[W0/?]Ri(R RRtparse_wavelength(RRtwavelength_check_msgRR!((s /home/pi/Code/cbp_2/bin/laser.pyRVs s[MS:W0/S520\NL]cCs}|}g}xtjD]}|j|ƒqWxtjD]}|j|ƒq7W|jddj|ƒƒ}|d}t|ƒS(Nti(tstringtletterstappendt punctuationt translateRtjoinR (tmsgt msg_parset remove_charstchart split_msg((s /home/pi/Code/cbp_2/bin/laser.pyR%bs cCs=tj||dƒ}x|D]}|j|ƒqWdGHdS(Nisdone.(tnptarangeR$(Rtmintmaxtnp_arraytitem((s /home/pi/Code/cbp_2/bin/laser.pytloop_change_wavelengthns (t__name__t __module__t__doc__RRRRRR$tFalseRt staticmethodR%R9(((s /home/pi/Code/cbp_2/bin/laser.pyR s     cCs/tjddƒ}|jdddddƒ|S(Nt descriptionsDProgram to change the wavelength of the laser using rs232 interface.R!tnargsithelps=This is for setting the value of the wavelength of the laser.(targparsetArgumentParsert add_argument(tparser((s /home/pi/Code/cbp_2/bin/laser.pyt create_parseruscCs#tdtƒ}|jddƒdS(sV This creates a command line and arguments for the script. :return: None RiôiN(RRR9(R!tlaser_interface((s /home/pi/Code/cbp_2/bin/laser.pytmain{st__main__iô(( R<R RBR(tnumpyR3RRFRHR:(((s /home/pi/Code/cbp_2/bin/laser.pyts    j