This paper present a Digital Traineer as a development of my research in 2018. This old traineer has two dificiency in using, that is only have single frequency and used small DIP Switch 8 channel. DIP switchs that used on digital input is difficul to set by hand, normally only set by using something like pensil or small tools. This condition is not practical and must be changed with SPDT Switchs that simple and easy to use in experiment digital laboratory. The other problem in old Traineer is just used single frequency. This sistem is no good for some application like Running LED or other experiment circuit that need variety frequency. In this case single frequency must be changed with multi low frquency to support some experiment digital laboratory. This research produced a prototype Traineer as a result from developing of old Traineer. The main component is Microcontroller PIC16C54 and supported by combination of component R and C to produce variety frequency from 0 to 250 Khz. On Digital input side, DIP Swicth 8 channel on old Traineer be changed with 8 SPDT switch.