RANCANG BANGUN SISTEM PENGIRIS SINGKONG OTOMATIS BERBASIS MIKROKONTROLER AT89S51

Automatic cassava slicer system project and realization has been done. This tool can be used in home industy (specially at crispy cassava maker). This system consists of hardware and software. The hardware consists of AC motor, stepping motor, power circuit, darlington circuit, microcontroller AT89S51 circuit and limit switch. The software use assembly Reads 51 programming. The first step to start the work system are arrange the tick of cassava, then put cassava at the cassava place. At this moment limit switch pressed by cassava, so that give low input to mikrocontroler. Mikrocontroler will commanding steeping motor to rotating according with the tick option that we’ve choosen at the first step until limit switch give high input to mokrocontroler, that is at the time when cassava has been sliced till it used up (limit switch in unpress condition). At this time limit switch give high input to mikrocontroler, then mikrocontroler commanding stepping motor to turn around until the first position of stepping motor. This research produce a peripheral that can slice cassava automaticly with 3 option of cassava tick wich can be choosen by user