The construction of He-Ne-I2stabilized laser electronics with digital control by a PC computer is presented in this contribution. This system has been developed to work with a compact laser head as a wavelength standard for metrology of lengths. Due to its compact construction and portability it can be used in calibrations of laser interferometers in mechanical engineering and microelectronics. A novel approach to the design of a control is presented. Sensitive analog circuits are opto-coupled to a digital control communicating with a PC. All functions are accessible from keyboard, iodine spectrum and system diagnostic data are currently displayed. User friendly graphic interface allows easy hyperfine line selection and locking. The system was compared to the BIPM laser and showed a very good reproducibility. ©1997 American Institute of Physics.